CompTIA A+ Core 1 (220-1201) Practice Test – 486 Free Exam Questions with Answers

Correct answer: A. RJ-45

Copper twisted-pair Ethernet cables are most commonly terminated with RJ-45 connectors. You can eliminate the other options by matching their intended media: F type is for coaxial, DB-9 is for serial, and ST is for fiber optic.

Correct answer: D. Elasticity

Elasticity is the cloud characteristic that dynamically adds or removes resources automatically in response to real-time demand. Scalability is the trap here because it refers to permanent capacity upgrades rather than automatic, temporary adjustments.

Correct answer: B. USB-C

USB-C uses a reversible, non-directional connector that supports both charging and high-speed data transfer. Older USB form factors like Micro-USB and Mini-USB are physically keyed and only insert in one direction.

Correct answer: D. Virtual memory

Virtual memory relies on allocated hard drive space to swap data pages when the system runs out of physical RAM. The distractors are physical memory modules or error-checking types, not a storage overflow mechanism.

Correct answer: D. NFC

Near Field Communication enables short-range wireless data transfers and contactless payment processing. Bluetooth and Wi-Fi operate over much longer distances, while USB-C is strictly a wired connection.

Correct answer: B. Jitter

Jitter is the variation in packet delay that causes audio to speed up or slow down during real-time Voice over IP calls. Latency measures overall delay, while bandwidth and throughput track total data capacity.

Correct answer: D. A

An A record is used to resolve a domain name to an IPv4 address. An AAAA record resolves to an IPv6 address, an MX record directs email traffic, and an SOA record provides authoritative zone information.

Correct answer: D. ECC

Error Correcting Code memory detects and corrects data corruption, making it the standard choice for servers requiring high availability. Single and dual-channel refer to bandwidth, while non-parity memory lacks error checking capabilities entirely.

Correct answer: A. DHCP failure

Receiving an IP address in the 169.254 range indicates an Automatic Private IP Addressing assignment caused by a Dynamic Host Configuration Protocol failure. DNS resolution issues prevent website access by name, but they do not assign APIPA addresses.

Correct answer: D. Processing, charging, exposing, developing, transferring, fusing, and cleaning

The laser printer imaging process relies on the sequence of processing, charging, exposing, developing, transferring, fusing, and cleaning. The distractors fail because they scramble the order, which would prevent toner from correctly adhering to the drum and paper.

Correct answer: B. The CMOS battery is dead and needs to be replaced

A failing CMOS battery fails to maintain the real-time clock and BIOS settings when the machine is powered off. Driver updates, memory errors, and faulty power supplies do not specifically cause the system clock to lose time.

Correct answer: D. FTTP

Fiber to the Premises provides the highest bandwidth by extending the fiber optic connection directly into the customer's building. Other options like node or curb rely on slower copper or coaxial cables for the final connection.

Correct answer: C. It allows on-demand scalability of hardware resources

Infrastructure as a Service provides on-demand scalability of virtualized hardware resources like CPU and RAM. It requires the customer to manage the operating system and applications, unlike fully managed platforms.

Correct answer: D. Incorrect resolution

Displaying large icons and blurry images indicates the system is using an incorrect screen resolution. The GPU scales the image improperly when it is not set to the panel's native resolution, unlike color depth or cable issues.

Correct answer: B. Change the orientation of the screen

An inverted display is a simple software configuration error that is resolved by changing the screen orientation in display settings. Replacing hardware or updating drivers is unnecessary because the panel is functioning properly.

Correct answer: C. It runs as an application on an existing operating system and uses the host's resources

A Type Two hypervisor runs as an application on top of a host operating system and shares the host's resources. Type One hypervisors run directly on the hardware without needing a host operating system.

Correct answer: B. SaaS

Software as a Service replaces locally installed applications with cloud-hosted applications accessed via a web browser. Infrastructure and Platform models focus on hosting virtual hardware or development environments, not end-user applications.

Correct answer: C. RAID 5 uses single parity and can tolerate one drive failure while RAID 6 uses dual parity and can tolerate two simultaneous drive failures

RAID 5 uses single parity and can survive one drive failure, while RAID 6 uses dual parity and can survive two simultaneous failures. The minimum drive requirements and dedicated parity options are incorrect because both levels distribute parity across all drives.

Correct answer: A. They provide a lightweight, consistent runtime environment

Containers provide a lightweight runtime environment by sharing the host operating system kernel. They do not eliminate hypervisors or replace operating systems entirely, distinguishing them from traditional virtual machines.

Correct answer: D. 443

HTTPS traffic encrypts web data over port 443. Since standard HTTP works on port 80, the firewall is specifically blocking the secure port, preventing encrypted browser sessions.

Correct answer: C. SaaS

Software as a Service provides fully managed, pre-built applications without requiring infrastructure or development management. Platform as a Service and Function as a Service require coding, whereas Infrastructure as a Service leaves application management to the customer.

Correct answer: D. Verify that the DHCP server is properly configured to provide the IP address of a DNS server

The inability to resolve a domain name while successfully pinging a public IP address indicates a missing or invalid Domain Name System configuration. Disabling the firewall or changing Dynamic Host Configuration Protocol settings acts against established troubleshooting procedures.

Correct answer: C. Check the status of the print server queue

Checking the print server queue should be the first step because silent printing failures often indicate a stuck job. Changing the default printer or toggling offline mode assumes a configuration error rather than a stalled spooler.

Correct answer: A. 525 W

A power supply must provide sufficient wattage to handle the maximum load of all internal components safely. Units rated below the requirement will fail to power the system, while higher ratings provide safe overhead.

Correct answer: D. Wi-Fi analyzer

A Wi-Fi analyzer is the best tool for measuring signal strength, identifying interference, and optimizing channel usage. Cable testers, loopback plugs, and toner probes are designed for physical wired connections rather than wireless diagnostics.

Correct answer: C. SaaS

Microsoft 365 is classified as Software as a Service because the software is accessed via a browser without local installation. DaaS provides a full virtual desktop, while IaaS and PaaS deliver infrastructure and development platforms rather than end-user applications.

Correct answer: B. Load balancing

Load balancing distributes network traffic across multiple servers to optimize response time and prevent overloading. Traffic shaping prioritizes specific data, while high availability and fault tolerance ensure continuous operation during failures.

Correct answer: C. Digitizer

A digitizer is a touch-sensitive panel that converts analog touch events into digital signals for the operating system. Backlights and inverters only manage display illumination, and capacitors regulate electrical voltage.

Correct answer: A. Wattage rating · B. Number and type of connectors

The technician must select a power supply with a high enough wattage rating and the correct number and type of connectors. Gaming workstations with dedicated graphics cards and multiple drives require significant power and specialized PCIe and SATA power connectors.

Correct answer: D. 172.30.15.12

The IP address 172.30.15.12 falls within the private Class B range of 172.16.0.0 to 172.31.255.255. The 169.254 range is reserved for APIPA, while the others are valid public IP addresses.

Correct answer: C. TPM

A Trusted Platform Module, or TPM, is a motherboard component that accelerates cryptographic processing and securely stores encryption keys. AES is an algorithm, full disk encryption is a feature, and PAM is an authentication module.

Correct answer: C. Hotspot

A mobile hotspot uses wireless connectivity to share a smartphone's cellular internet connection with nearby devices. USB tethering requires a physical cable, tunneling encapsulates data, and a baseband update involves modem firmware.

Correct answer: A. USB-C

USB-C provides the fastest wired data transfer speeds for modern mobile devices, supporting rates up to 10 Gbps or higher. Lightning, USB 2.0, and Micro-USB are older standards with significantly lower maximum speeds.

Correct answer: C. Gateway

The default gateway is the router's IP address that forwards traffic destined for remote networks outside the local area network. Static and dynamic IPs identify the host, while the subnet mask determines the network boundary.

Correct answer: A. RAID 0

RAID 0 uses disk striping to provide maximum performance and full utilization of available drive space without redundancy. RAID 1, RAID 5, and RAID 10 all introduce fault tolerance, which consumes storage capacity and limits speeds.

Correct answer: A. PCIe

PCI Express, or PCIe, uses dedicated lanes for point-to-point serial communication between components. AGP, PCI, and PCI-X are older parallel bus technologies that share bandwidth across multiple connected devices.

Correct answer: C. Configure the laptop's network connection to use DHCP instead of a static IP

Switching the laptop to use DHCP allows the network's server to automatically assign a valid, non-conflicting IP address. Manually choosing a new static IP risks future conflicts, and replacing a working adapter ignores the configuration error.

Correct answer: A. Repair the MBR

An operating system not found error often indicates a corrupted Master Boot Record, requiring a repair using recovery tools. Repartitioning destroys data, and replacing drives is unnecessary when boot configuration is the only failure.

Correct answer: C. DaaS

Desktop as a Service, or DaaS, provides users with a full virtualized desktop environment hosted in the cloud. IaaS provides raw computing infrastructure, PaaS offers development platforms, and SaaS delivers specific software applications.

Correct answer: D. Increase the Wi-Fi signal being transmitted by their WAP

Boosting the wireless signal helps overcome interference from neighboring apartments, ensuring the device receives a reliable connection. Upgrading a smartphone is ineffective since the device works elsewhere, and MAC filtering restricts access.

Correct answer: D. GPS

A Global Positioning System device determines its location by receiving signals from an orbiting satellite constellation. Other mobile devices like e-readers and fitness trackers rely on this technology but do not define it.

Correct answer: C. Crosstalk

The twisting of the wire pairs protects against crosstalk, which is signal leakage between adjacent cables. Untwisting the wires near the connector during termination removes this protection, leading to electromagnetic interference and degraded network performance.

Correct answer: C. The 2.4 GHz frequency is more effective at penetrating solid surfaces than 5.0 GHz

The 2.4 GHz frequency band uses a longer wavelength, which makes it more effective at penetrating solid surfaces than 5.0 GHz. While it provides better range, the 5.0 GHz band actually supports higher data rates and experiences less overall interference.

Correct answer: C. Recalibrate the touchscreen

A touchscreen registering touches in the wrong locations requires recalibration within the operating system. Driver updates or reinstalling Windows are time consuming steps that should only be attempted if the basic calibration fails to resolve the issue.

Correct answer: C. SODIMM

Laptops use small outline dual inline memory modules, known as SODIMMs, due to their compact footprint. DIMMs are used in desktops, while GDDR5 and VRAM are dedicated to graphics processing units.

Correct answer: B. 445

The Server Message Block protocol uses port 445 to share files and printers directly over a modern IP network. FTP uses port 21, HTTPS uses port 443, and IMAP uses port 143 for their respective services.

Correct answer: A. The 5.0 GHz frequency supports higher data rates than 2.4 GHz

The 5.0 gigahertz frequency supports higher data rates and offers more non overlapping channels than 2.4 gigahertz. Conversely, 2.4 gigahertz has a longer wavelength, making it travel farther and penetrate solid surfaces much better.

Correct answer: D. Enable Printer Sharing on your Windows system

Enabling printer sharing in Windows allows network users to send documents to a locally attached USB printer for free. Purchasing hardware or creating guest accounts violates the zero cost and temporary requirements of the scenario.

Correct answer: A. Provide security for the OS

Secure Boot verifies the digital signatures of boot software to prevent unauthorized operating systems and malware from loading during startup. The distractors describing speed or memory improvements fail because Secure Boot provides integrity validation, not hardware performance enhancements.

Correct answer: B. Schedule a backup of the RAID array before taking any action

A RAID array is extremely vulnerable to data loss during a rebuild, so a verified backup must exist before replacing a failing drive. Disk repair utilities cannot fix hardware S.M.A.R.T. errors, and reconfiguring the array requires destroying it first.

Correct answer: D. DNS server

The inability to resolve a domain name while successfully pinging a public IP address indicates a DNS resolution failure. DHCP is eliminated because the workstation already has a valid IP address, and SMTP or FTP servers do not handle name resolution.

Correct answer: B. Tethering

Tethering shares a mobile device's cellular data connection with another device, often using a USB cable or Bluetooth. A hotspot is eliminated because it specifically refers to broadcasting a wireless Wi-Fi network for multiple devices to connect to.

Correct answer: D. L1

Level 1 cache is built directly into the processor core, making it the smallest and fastest cache memory available. The higher levels like L2 and L3 are progressively larger and slower, sitting further away from the core to balance speed and capacity.

Correct answer: C. Have you gotten the phone wet recently?

Liquid damage strongly correlates with the combined symptoms of screen flickering and inconsistent charging, making questions about water exposure the best initial diagnostic step. A dropped phone might crack a screen, but it rarely causes simultaneous charging port failures without obvious physical damage.

Correct answer: B. MIMO

Multiple-input multiple-output, or MIMO, uses multiple antennas to achieve higher throughput speeds in modern wireless networks. The other options are network or security features that do not directly increase data transfer rates.

Correct answer: A. Forget the Wi-Fi network and reconnect

Forgetting and reconnecting to a Wi-Fi network clears corrupted authentication data. Factory resets are too disruptive for an initial troubleshooting step, and a simple restart will not fix a corrupted network profile.

Correct answer: B. 22

Secure Shell uses TCP port 22 to establish encrypted remote management sessions. Port 23 is unencrypted Telnet, port 25 is SMTP for email transfer, and port 443 is secure web traffic.

Correct answer: B. The access point and the wireless printer have a frequency mismatch

Older wireless printers often only support 2.4 GHz networks, while 802.11ac operates strictly on the 5 GHz band. This frequency mismatch prevents the legacy printer from detecting or connecting to the new access point.

Correct answer: A. USB 3.0

USB 3.0 provides higher power delivery, supporting up to 4.5 watts per connected device. Older USB versions deliver significantly less power, making them unsuitable for powering demanding peripherals without an external adapter.

Correct answer: E. 802.11g

The 802.11g standard operates specifically in the 2.4 GHz band and reaches maximum speeds of 54 Mbps. While 802.11a also reaches 54 Mbps, it operates in the 5 GHz band.

Correct answer: C. Repeater

A repeater receives and retransmits network signals to extend transmission distances at the lowest cost. Routers and switches are more complex and expensive devices used for directing traffic, not simply extending it.

Correct answer: D. PostScript

PostScript is a page description language that produces high-quality outputs for desktop publishing at the cost of processing speed. Printer Control Language is faster but offers lower print fidelity.

Correct answer: D. 53

DNS operates over port 53 to translate domain names into IP addresses. If you can reach a website by IP but not by name, the firewall is blocking DNS resolution, not web traffic ports.

Correct answer: C. Secure Boot

Secure Boot prevents malicious and unauthorized applications from loading during the startup process. Full disk encryption only protects data at rest, while a BIOS password merely blocks system access without validating boot software signatures.

Correct answer: A. Ensure the correct SSID and password are entered

Verifying the correct network name and password is the first step because incorrect credentials commonly cause isolated connection failures. Factory resets and hardware replacements are premature steps that ignore basic network settings.

Correct answer: D. Replace the laptop's cracked screen

Technicians should proceed with the hardware replacement by carefully disassembling the laptop and documenting screw and cable locations. Updating drivers is for software issues, and waiting or returning the screen causes unnecessary delays for a routine repair.

Correct answer: A. Confirm if the trackpad is disabled in the laptop's settings or function keys

Trackpad toggles are frequently bound to laptop function keys and can be accidentally disabled, causing an unresponsive touchpad after waking from sleep. Updating the BIOS or reinstalling the operating system are disruptive steps that should be deferred until simpler settings are verified.

Correct answer: D. Increase the temperature of the fuser element

Laser printers use heat and pressure in the fuser assembly to permanently bond toner to the paper. Thicker media like cardstock absorbs more heat, so increasing the fuser temperature ensures the toner melts and adheres properly without smearing.

Correct answer: C. Examine the workstation and printer for any obvious indicators of failure

The CompTIA troubleshooting methodology requires examining the system for obvious indicators of failure before taking disruptive action. Replacing hardware or updating drivers are premature steps because you have not yet established a theory of probable cause.

Correct answer: B. Verify that the correct SSID and password are entered

When a device switches networks, it often requires updated credentials to establish a new connection to the corporate Wi-Fi. Verifying the correct network name and password is the most logical first step before considering drastic measures like factory resets.

Correct answer: A. It creates a virtual environment for the legacy application to run

Application virtualization isolates a legacy program in a virtualized environment so it runs without conflicting with the host operating system. Dual booting or rewriting the app is unnecessary, and hardware emulation is a different concept entirely.

Correct answer: B. The laptop's motherboard has a swollen capacitor

A failing or swollen capacitor on a motherboard releases a noticeable foul odor and causes erratic system behavior. Loose battery connections cause power loss, and a dead CMOS battery only resets the system clock.

Correct answer: D. Liquid cooling system

Liquid cooling systems are the most efficient way to dissipate extreme heat generated by high performance components like multiple graphics cards. Passive heatsinks and high speed fans simply cannot match the thermal transfer rate of liquid cooling.

Correct answer: A. Mini-ITX

Mini ITX is the best motherboard choice for a home theater PC because its small form factor allows for compact cases and quiet passive cooling. Micro ATX and standard ATX boards are larger and require louder cooling fans.

Correct answer: C. MX

An MX record directs email to a specific mail server for a domain, managing both incoming and outgoing SMTP traffic. A and AAAA records are eliminated because they only map hostnames to IP addresses, without providing mail routing instructions.

Correct answer: B. The wireless hotspot feature is throttling the cellular connection speed

Cellular providers often artificially throttle mobile hotspot data speeds to manage network bandwidth, even when the phone's primary connection remains fast. Range or broadcast issues would eliminate connectivity entirely rather than producing the observed slow speeds.

Correct answer: D. mITX

The Mini-ITX form factor provides the smallest footprint among the options, measuring less than seven inches square. While microATX is also smaller than standard ATX, it is still significantly larger than Mini-ITX, making it the secondary option.

Correct answer: B. Perform the GPS calibration

Calibrating the GPS sensor fixes directional discrepancies by realigning the device compass to true north. Updating maps only changes route data and will not resolve a conflicting directional heading.

Correct answer: D. ST

The ST connector is identified by its round, bayonet-style locking mechanism used for fiber optic cabling. The other fiber connectors use different latching methods, such as the push-pull square design of an SC connector.

Correct answer: A. Full storage encryption

Full storage encryption protects data at rest if a mobile device is lost or stolen. Single sign-on manages authentication, operating system updates patch vulnerabilities, and removing backups would not protect the physical device data.

Correct answer: D. Distended capacitors

Visible physical damage like distended or bulging capacitors definitively indicates a failing motherboard requiring replacement. However, continuous reboots and burning smells can also stem from motherboard failures, making those options reasonably defensible depending on context.

Correct answer: A. WAP placement

A wireless access point should be placed to optimize signal coverage and minimize interference from building materials. However, bandwidth saturation from network overload is a strong competing cause for dropped connections, making this a slightly tricky prioritization question.

Correct answer: C. TXT

Text records store human-readable information and are commonly used for domain verification and email authentication frameworks. Mail exchange records only route email, while service records define specific ports and hosts.

Correct answer: B. Front panel connector

The circled area indicates the front panel audio connector on the motherboard, used for analog audio output to the case. Modern front panel connections are distinguished from standard USB headers by their physical layout and surrounding markings.

Correct answer: C. Wear an anti-static wrist strap and work on a surface that prevents electrostatic discharge

Electrostatic discharge can permanently damage sensitive storage components, so technicians must wear anti-static wrist straps and use ESD-safe mats. While often used for screws, magnetic tools are generally discouraged near sensitive electronic components to prevent unintended interference.

Correct answer: B. An incompatible partition is marked as active

An operating system not found error occurs when the active partition lacks valid boot files, which happens if the wrong partition is marked active. When installing a dual-boot setup, the bootloader may inadvertently point to a partition lacking the necessary master boot record.

Correct answer: C. Apply a small amount of oil to the fan's bearings

Applying a small amount of oil to the fan bearings can temporarily eliminate a whining noise caused by friction. Cleaning the fan with compressed air is generally ineffective for this specific symptom since the issue is mechanical wear rather than dust accumulation.

Correct answer: C. Configure the system to scale resources down during periods of low usage automatically

Cloud elasticity allows a system to automatically scale computing resources up or down based on current demand. Configuring automatic scaling down during low usage periods optimizes costs without requiring inefficient manual intervention or dedicated hardware.

Correct answer: C. The bulb's life counter needs to be reset · E. The cooling fan needs to be cleaned or replaced

Projectors often require resetting the lamp life counter after a bulb replacement, or they will automatically shut down prematurely. Additionally, an overheating projector caused by a dirty or failing cooling fan will trigger an automatic thermal shutdown to protect the device.

Correct answer: D. Transfer roller

The transfer roller applies a positive electrical charge to the paper to attract the negatively charged toner from the imaging drum. The fuser melts the toner, while pickup rollers and separation pads solely handle the physical feeding of paper sheets.

Correct answer: D. Elasticity

Elasticity allows the cloud to automatically provision or de-provision resources based on real-time demand. Scalability refers to adding permanent capacity, while redundancy focuses on system uptime and fault tolerance.

Correct answer: B. The Ethernet port on the laptop is faulty; replace or repair the port

A failed loopback test directly indicates a physical hardware failure with the laptop's network interface. Since this test isolates the port from external cables and switches, the technician must replace or repair the port.

Correct answer: A. The workstation's hard drive is failing

If the system firmware cannot detect the drive, the drive has likely failed physically. An incorrect boot order would still display the drive in firmware, while mixing memory modules is physically impossible.

Correct answer: C. BD-R

A Blu-ray disc provides sufficient storage capacity for a 20 GB file, holding up to 25 GB on a single layer. Standard CDs and DVDs do not offer enough space, while SD cards are flash memory, not optical discs.

Correct answer: D. IPS

In-plane switching panels offer the best color accuracy and viewing angles for professional video editing. Twisted nematic panels prioritize high refresh rates for gaming but suffer from poor color reproduction, while plasma and vertical alignment panels are not the best choices here.

Correct answer: C. A Type II hypervisor runs within an existing operating system and relies on the host OS to manage hardware resources

A Type 2 hypervisor is software that runs on top of a conventional host operating system. Because it relies on the host operating system for hardware access, it cannot provide the direct bare metal performance of a Type 1 hypervisor.

Correct answer: D. Insufficient RAM (memory) installed in the computer system causing the device to fail during startup or operation

Insufficient memory is a resource bottleneck that causes system instability or boot failures, but it does not interrupt electrical power delivery. Faulty power supplies, disconnected power buttons, and bad wall outlets directly disrupt the electrical circuit.

Correct answer: D. Jitter

Jitter measures the variable delay in packet arrival times across a network. While latency measures overall delay, bandwidth and throughput measure data capacity and actual transfer rates, respectively, rather than timing variations.

Correct answer: A. DHCP server

A Dynamic Host Configuration Protocol server automatically assigns IP addresses to clients joining a network. DNS resolves domain names, proxy servers filter traffic, and authentication servers handle network access control.

Correct answer: D. RAID 1

RAID 1 mirrors data across two drives, providing the required fault tolerance and redundancy. RAID 0 offers no fault tolerance, while RAID 5 and RAID 10 require a minimum of three and four drives respectively.

Correct answer: D. SAN

A storage area network provides a dedicated, high-speed network specifically for sharing block-level storage among servers. Standard area networks like LAN, MAN, and WAN handle general data and user connectivity instead.

Correct answer: C. POP3

Post Office Protocol version three uses port 110 by default to retrieve emails. Internet Message Access Protocol uses port 143, while Server Message Block uses port 445, which helps eliminate the other options.

Correct answer: D. Loopback

The address colon colon one is the designated loopback address in IPv6. It functions exactly like the IPv4 address 127.0.0.1, which allows a machine to test its own network stack without sending traffic externally.

Correct answer: A. RAID 5

RAID 5 requires a minimum of three disks to operate because it uses block level striping with distributed parity. RAID 10 requires four disks, while RAID 0 and RAID 1 only require two disks.

Correct answer: B. VPN

A virtual private network allows employees to securely connect to the corporate network from a remote location over the internet. The other options manage internal routing, security, or address translation.

Correct answer: D. The smartphone reached the data cap for the month

Cellular providers often deprioritize or throttle data speeds after a user reaches a specific high-speed data cap. The sudden drop from 25 Mbps to 0.125 Mbps indicates a service provider limitation rather than a hardware failure or a device issue.

Correct answer: A. Fuser

The fuser assembly uses heat and pressure to bond loose toner powder permanently onto the paper. If printed pages have a dusty or loose toner coating, the fuser is failing and needs to be replaced.

Correct answer: A. Check for battery health information in the device settings

Troubleshooting theory requires checking battery health in the device settings before replacing hardware or changing configurations. This diagnostic step distinguishes physical battery degradation from software-related power drain issues.

Correct answer: A. HTTPS

Hypertext Transfer Protocol Secure (HTTPS) is a connection-oriented protocol that relies on the Transmission Control Protocol (TCP) to guarantee packet delivery. TFTP, DHCP, and SNMP rely on the connectionless User Datagram Protocol (UDP).

Correct answer: B. Perform a remote wipe of the device

A remote wipe erases corporate data from a lost or stolen device to maintain confidentiality. Resetting the password is a risk if the attacker cracks it, and remote encryption must be enabled before the device is lost.

Correct answer: B. Consult the motherboard's manual

Technicians must consult the motherboard manual to determine the correct slots for enabling single or dual channel memory configurations. Color coding is not standardized across manufacturers, so guessing the installation pattern could result in suboptimal performance.

Correct answer: C. Distended capacitors

Failing capacitors often bulge and leak electrolytic fluid, which produces a noticeable foul odor. Unseated components or broken LEDs will not emit a smell, making distended capacitors the only logical visual indicator.

Correct answer: C. In the screened subnet

A screened subnet isolates public facing servers from the internal local network to provide security through layered filtering. Placing the server on the internal LAN exposes client devices to direct internet attacks.

Correct answer: C. The workstation's power supply isn't powerful enough to support the card

High end graphics cards require significant wattage, which exceeds the capacity of standard corporate power supplies. The system fails to boot properly because the power supply cannot sustain the new hardware.

Correct answer: B. Reconfigure the boot order within the BIOS/UEFI

The BIOS or UEFI firmware controls the boot order sequence before the operating system loads. Adjusting this setting ensures the system selects the correct drive initially, overriding any secondary drive preferences.

Correct answer: C. Duplicate MAC address

Duplicate MAC addresses force a switch to constantly update its MAC address table as the physical location appears to jump between two ports. This rapid table update process creates port flapping and connectivity loss.

Correct answer: B. It is more resistant to brute force attacks

Biometric authentication relies on unique physiological traits, making it highly resistant to brute force attacks compared to traditional passwords. Options like cheaper implementation or better encryption are incorrect because biometrics focuses on identity verification, not cost savings or data encryption.

Correct answer: A. Replace the toner cartridge

Fading print quality after several thousand pages usually indicates low toner, requiring a cartridge replacement. Maintenance parts like drums and corona wires typically last much longer before needing service. Adjusting the paper tray height would cause paper jams, not fading print.

Correct answer: A. The laptop has inadequate airflow and is overheating

Intermittent shutdowns during processor-intensive tasks point directly to inadequate airflow and overheating. Processors generate significant heat under load and will force a shutdown to prevent hardware damage. Motherboard failures or loose batteries cause random power loss regardless of system load.

Correct answer: D. MFA

Using a password alongside a one-time code texted to a smartphone represents multifactor authentication. This requires two distinct verification factors, combining something you know with something you have. Single sign-on manages multiple sessions, while FaceID and TouchID are strictly biometric.

Correct answer: D. Configure it as a shared printer connected to one of the four workstations

Connecting the printer to a workstation and sharing it over the workgroup is the best method when no switch ports exist. This allows the host computer to act as a print server. Bluetooth lacks multi-user support, and cloud printing requires internet infrastructure.

Correct answer: C. 139

NetBIOS over TCP/IP uses port 139 for session services to support legacy Windows file and printer sharing. Port 443 is HTTPS, port 21 is FTP, and port 110 is POP3 email.

Correct answer: C. Facial recognition

Facial recognition analyzes physical traits from a distance, making it the best fit for contactless authentication systems. Fingerprint and hand geometry require direct physical contact, while retina scanning demands strict close alignment.

Correct answer: C. "Do not use the smartphone and bring it to our service center immediately so that we can replace the battery for you."

A swollen lithium-ion battery is a safety hazard and requires immediate professional replacement. Continuing to use the device risks fire or leakage, making replacement the only safe option.

Correct answer: B. POE injector

A Power over Ethernet injector delivers electrical power over a network cable to devices like access points. Repeaters, hubs, and modems handle data or signal extension but do not provide inline power.

Correct answer: B. Verify the paper path and its sensors are not blocked

Always verify the paper path and sensors are clear after a jam. Torn paper fragments often block sensors, triggering the error. Replacing toner, updating drivers, or replacing rollers does not address physical debris.

Correct answer: A. Use auto-scaling to add resources when demand rises

Cloud auto-scaling automatically provisions additional resources to handle peak demand. Manually restarting the server or migrating to SaaS does not address the underlying resource bottleneck.

Correct answer: D. Corrupted or missing display driver

When a system falls back to the basic Microsoft Display Adapter, it defaults to a low VGA resolution. This fallback indicates the primary graphics driver is corrupted or missing following the unexpected power loss.

Correct answer: C. USB-C

USB-C is a reversible connector used by modern mobile devices for data and power. MicroUSB and MiniUSB are older, non-reversible standards, while Type-A is typically found on host computers.

Correct answer: B. 8.4.2.1

A public IP address must fall outside the ranges reserved for private networks. Addresses starting with 10 or 192.168 are private, while 169.254 is reserved for APIPA automatic addressing.

Correct answer: A. Resource pooling

Resource pooling allows a hypervisor to dynamically allocate memory and processing power to virtual machines. Measured service refers to monitoring usage for billing, not the allocation itself.

Correct answer: D. An order for a $50,000 stock purchase

TCP guarantees packet delivery and error checking, making it required for sensitive financial transactions. UDP is preferred for streaming audio and video where dropped packets are acceptable to maintain speed.

Correct answer: B. PCIe x8

Peripheral component interconnect express slots are identified by their physical length and pin count. The circled area corresponds to the PCIe x8 slot, which is shorter than an x16 slot but longer than an x4 or x1 slot.

Correct answer: A. Gigabit NIC · D. RAID 5

A network attached storage device requires high throughput and data redundancy for reliable file serving. A gigabit network interface card provides the necessary bandwidth, while a redundant array of independent disks provides fault tolerance.

Correct answer: D. Dual-channel

Dual channel memory architecture uses two separate 64 bit data buses to double the data transfer rate between the memory controller and the RAM. Single, triple, and quad channel modes utilize different bus counts.

Correct answer: B. Impact

Impact printers physically strike an ink ribbon against paper, making them the only option capable of creating carbon copies. Thermal, inkjet, and laser printers lack the physical striking mechanism required to transfer ink through carbon paper.

Correct answer: D. It enables multiple customers to share the same physical resources securely

Multitenancy allows multiple cloud customers to securely share the same underlying physical resources. The hypervisor isolates their workloads, refuting the distractors that suggest dedicated hardware or complete hardware control.

Correct answer: D. 1 TB SSD

A solid-state drive provides the best combination of fast data access speeds and internal storage capacity. Network options like SAN and NAS are external, and traditional hard disk drives sacrifice speed for capacity.

Correct answer: A. Configure port forwarding

Port forwarding directs incoming internet traffic for a specific port to the internal server. Updating firmware, enabling DHCP, or changing wireless channels does not open network paths for external clients.

Correct answer: B. Restricting synchronization to Wi-Fi connections only

Restricting synchronization to Wi-Fi connections only prevents mobile data overage charges. Disabling synchronization entirely is impractical, while prioritizing mobile data or using automatic sync increases data usage.

Correct answer: B. Public cloud

The public cloud model operates on a pay as you go basis, allowing organizations to scale resources without heavy upfront investments. Shared infrastructure reduces overall costs compared to private cloud environments.

Correct answer: D. T-568B

The T568A and T568B standards define the pinouts for terminating twisted-pair Ethernet cables. RG-6 is used for cable television, RJ-11 for telephones, and RS-232 for legacy serial connections.

Correct answer: C. OLED

Organic light-emitting diode (OLED) displays are highly energy-efficient and do not require a backlight because each pixel generates its own light. Standard LCD and LED displays require a backlight, and plasma screens are not energy-efficient.

Correct answer: A. USB-C

Thunderbolt 3, 4, and 5 cables utilize the reversible USB-C connector type. Micro USB and Mini USB are older, smaller connectors for mobile devices, while USB Type B is typically used for larger peripherals like printers.

Correct answer: B. Check the physical connection of the webcam

Verifying internal physical connections is the logical next step when hardware is enabled in the BIOS but remains undetected by the operating system. Replacing the screen or installing third-party software skips basic hardware troubleshooting.

Correct answer: A. Legacy system

A legacy system is hardware or software that is no longer supported by its vendor but remains in active use. These systems pose significant security risks because they no longer receive routine patches or updates.

Correct answer: D. SC

An SC connector is a square push pull style fiber optic termination. The exam expects you to visually distinguish it from round ST connectors and smaller LC connectors.

Correct answer: A. Incorrect display resolution

Black bars and a squashed image indicate an incorrect display resolution setting. Displays have a native resolution, and choosing a mismatched aspect ratio causes the image to distort. Color depth affects color quality, while bad video cards or interference cause artifacts, not squashing.

Correct answer: C. You connected the printer to the guest wireless network instead of the corporate wireless network

Connecting the printer to the guest wireless network isolates it from the corporate network, preventing workstations from communicating with it. Guest networks are heavily restricted for security. Printers do not require workstations to act as DHCP servers or use IPP for local network printing.

Correct answer: A. Rapid elasticity

Rapid elasticity allows cloud environments to quickly scale up or allocate additional storage and resources based on demand. Resource pooling combines hardware, while metered services strictly handle the billing and usage tracking of those allocated resources.

Correct answer: C. Cable tester

A cable tester validates wiring maps and electrical properties like crosstalk and attenuation in copper cabling. Multimeters and loopback plugs check basic electrical continuity or port functionality, whereas a crimper simply attaches connectors.

Correct answer: D. Replace the battery

Lithium-ion batteries naturally degrade over years of charge cycles, leading to severely reduced battery life. Since the device successfully charges but drains rapidly, replacing the battery restores normal hardware function and resolves this specific symptom.

Correct answer: C. Keystone

Adjusting the keystone setting corrects trapezoidal distortion that occurs when a projector is angled improperly relative to the screen. Brightness, contrast, and color depth only manipulate visual color properties and lumens, having no effect on the projected image geometry.

Correct answer: B. Laptop

A laptop is a standard host computer rather than a dedicated Internet of Things endpoint like a smart television or industrial control system. IoT devices are specialized equipment communicating over a network without requiring constant human interaction.

Correct answer: B. WiFi analyzer

A WiFi analyzer detects signal strength, channel overlap, and interference causing dropped traffic. Cable testers, multimeters, and tone generators only diagnose physical cabling, not wireless issues.

Correct answer: A. Use a smartphone case with a built-in battery

A battery case extends usage throughout the day while keeping the phone mobile and connected. Airplane mode severs communications, while charging pads and power strips still rely on scarce wall outlets.

Correct answer: A. Wi-Fi

Wi-Fi can use unlicensed frequencies with directional antennas for long-range fixed wireless links. Cellular requires licensed spectrum, while Bluetooth and NFC are designed for very short-range communications.

Correct answer: C. MAN

Connecting campuses across a city forms a metropolitan area network. A wide area network typically spans countries or continents, while LANs and personal area networks cover much smaller geographic areas.

Correct answer: C. 67

A client uses UDP port 68 to request an IP address, while the DHCP server listens on port 67. Port 69 is TFTP, port 123 is NTP, and port 25 is SMTP.

Correct answer: B. No network activity

A steady network interface card light indicates a physical link exists but there is no active data being transmitted. Transmission attempts from incorrect configurations would cause blinking lights, whereas radio frequency issues only apply to wireless connections.

Correct answer: B. Hybrid Cloud

A hybrid cloud model seamlessly integrates local onsite systems with public or private cloud services. Public, private, and community clouds describe specific hosting environments rather than the combined infrastructure approach required here.

Correct answer: D. USB 2.0

Standard USB 2.0 Type-A ports are typically color-coded black on the motherboard port cluster. USB 3.0 ports are usually blue, while FireWire and eSATA have distinctly different connector shapes.

Correct answer: A. 67

The Dynamic Host Configuration Protocol (DHCP) uses UDP port 67 for the server to send configuration data to a client. Port 80 is HTTP, port 53 is DNS, and port 162 is used for SNMP traps.

Correct answer: D. Track point

A trackpoint is a small, pressure-sensitive nub located between laptop keyboard keys used to control the cursor. A stylus interacts with touchscreens, a trackpad is a flat touch surface, and a drawing pad is an external graphic input device.

Correct answer: B. The network card drivers were updated last night

Security updates can overwrite device drivers, reverting network cards to generic versions and lower speeds. Incorrect DHCP or DNS settings would cause complete connection failures, not just a speed reduction across all workstations.

Correct answer: B. BIOS boot option

Configuring a Preboot Execution Environment boot requires modifying network boot settings within the BIOS or UEFI. Secure boot validates driver signatures, the Windows boot menu loads an existing operating system, and power management controls energy states.

Correct answer: D. BIOS

The system clock resets when the motherboard CMOS battery fails and can no longer maintain BIOS hardware settings. While the BIOS configuration stores this data, investigating the CMOS battery is the required hardware fix.

Correct answer: A. Revert the VM to a snapshot taken before the patch was applied

Reverting to a snapshot taken before the patch restores the virtual machine to a known working state. Resetting or reinstalling is unnecessary because snapshots are designed for rapid rollback during testing.

Correct answer: A. The workstations are most likely configured to use dynamically assigned IP addresses and DHCP is not working properly

If servers with static IPs work while workstations fail, the Dynamic Host Configuration Protocol server is likely down. Statically assigned devices bypass DHCP, explaining why they retain connectivity while dynamic clients lose it.

Correct answer: D. It runs directly on the host hardware, providing better performance and efficiency

A Type 1 hypervisor runs directly on the host hardware to provide better performance and efficiency without needing an underlying operating system. Type 2 hypervisors require a host OS, eliminating that option and confirming the direct hardware execution characteristic.

Correct answer: A. SODIMM

Laptops use Small Outline Dual Inline Memory Modules, or SODIMMs, due to their smaller footprint. DIMMs are used in desktops, while SDRAM is a memory technology and Rambus is obsolete.

Correct answer: D. IPS

An intrusion prevention system actively blocks malicious traffic in real time. An intrusion detection system only logs or alerts on threats, while proxies and syslog servers manage traffic and logs rather than active prevention.

Correct answer: D. Implement QoS

Quality of Service prioritizes latency-sensitive traffic like Voice over IP over standard data transfers. Without QoS, network congestion can cause dropped calls, whereas MAC filtering and MTU changes do not address bandwidth prioritization.

Correct answer: C. Public

Services offered by third-party providers over the internet to the general public represent a public cloud model. Private clouds are restricted to one organization, while hybrid clouds mix public and private infrastructure.

Correct answer: D. 3.5"

The 3.5 inch form factor is too large for laptops and is reserved for desktop computers and servers. Laptops typically use smaller 2.5 inch, 1.8 inch, or M.2 form factor drives to fit their compact cases.

Correct answer: C. Refresh rate

Refresh rate defines how many times per second a display monitor redraws the entire screen image, measured in Hertz. Frame rate refers to the video stream content itself, while resolution dictates the number of pixels displayed.

Correct answer: B. Redundant power supply

Redundant power supplies ensure a server remains operational even if one power supply unit fails, which is crucial for maintaining high availability. Modular cabling or specific wattage ratings do not provide hardware fault tolerance.

Correct answer: A. Network tap

A network tap provides a physical connection that mirrors traffic to a monitoring device without interrupting the flow of data. This out-of-band setup contrasts with toner probes and loopback plugs, which are used for physical cable testing rather than traffic analysis.

Correct answer: B. 22

Blocking port 22 prevents remote logins because SSH uses this port for secure remote administration. Port 80 is for web traffic, port 21 is for FTP, and port 143 is for IMAP email.

Correct answer: D. By matching a MAC address to an IP address within the DHCP scope

A DHCP reservation maps a specific IP address to a device's MAC address within the DHCP scope. This ensures servers and printers consistently receive the same IP address without manual configuration.

Correct answer: D. 4G

Fourth-generation cellular technology encompasses LTE and LTE-Advanced to deliver high-speed data. Five-g networks offer faster speeds, while three-g networks represent older, slower legacy technologies.

Correct answer: D. Syslog server

A Syslog server collects and stores log messages from networked devices for centralized monitoring and troubleshooting. Authentication servers handle logins, print servers manage queues, and load balancers distribute traffic, so they do not analyze system events.

Correct answer: D. Input voltage

A power supply with the correct input voltage range is critical for a workstation traveling worldwide to avoid damage from different regional electrical standards. While efficiency and connectors matter for building the system, dual or auto-switching voltage ensures it safely powers on globally.

Correct answer: C. 1 TB

RAID 1 mirrors data across drives, meaning the usable capacity equals the size of a single drive. With two 1 TB drives, the system retains 1 TB of usable space, halving total capacity to provide redundancy.

Correct answer: D. The stylus nib is worn down and needs to be replaced

A worn stylus nib causes physical friction and inconsistent contact, leading to a scratchy feel and missed strokes. Software calibration affects pressure mapping, and a dying battery causes random disconnects, so neither creates physical scratching.

Correct answer: A. PAN

A Bluetooth connection between a phone and a car stereo creates a personal area network, designed for close-range device communication. Local and wide area networks cover broader physical areas, while storage networks connect enterprise servers.

Correct answer: A. Syslog server

A Syslog server is used to capture logs from different devices across a network to simplify log review and correlate events. The other options are incorrect because proxy, DNS, and DHCP servers handle web traffic, name resolution, and IP assignment rather than centralized log aggregation.

Correct answer: C. NetBIOS

NetBIOS operates over port 137 by default to provide name registration and resolution services on legacy Microsoft networks. RDP uses port 3389, IMAP uses port 143, and LDAP uses port 389, making them incorrect for this specific port number.

Correct answer: D. Hexadecimal

Base 16 notation utilizes hexadecimal format, which uses the numbers zero through nine and letters A through F. IPv4 addresses and subnet masks use decimal format, while MAC addresses and IPv6 addresses rely on hexadecimal.

Correct answer: C. Liquid cooling

Liquid cooling is extremely efficient at removing heat while remaining relatively quiet for high-performance gaming systems. Passive cooling and heat sinks cannot dissipate enough heat for these systems, and multiple case fans generate excessive noise.

Correct answer: D. Close and restart the virtual keyboard app

Closing and restarting the unresponsive app is the first and least disruptive step to clear temporary software locks. Factory resets, soft resets, and clearing the system cache are more aggressive steps that should only be tried if restarting the app fails.

Correct answer: D. Multitenancy architecture

Multitenancy architecture allows multiple customers to securely share the same application infrastructure while keeping their data logically isolated. This deployment model reduces infrastructure costs significantly compared to private clouds or edge computing distribution.

Correct answer: C. An open circuit has been created

An open circuit is the most likely cause because construction digging often severs buried network cables, leading to a permanent outage. Signal attenuation, cross-talk, and electromagnetic interference typically cause intermittent connectivity or degraded speeds rather than a complete physical disconnection.

Correct answer: A. IaaS

Infrastructure as a service provides instant access to foundational computing resources like servers and switches. IaaS allows quick provisioning over the internet, whereas SaaS, PaaS, and DaaS deliver finished applications, development environments, and virtual desktops.

Correct answer: D. Clear the print queue on the print server

When a network printer stalls after a failed job, clearing the print queue on the print server is the best first step to resume printing. Restarting the workstation or updating drivers will not clear a stuck server queue.

Correct answer: A. Incorrect date/time on the workstation

An incorrect system date and time at startup is the classic symptom of a failed CMOS battery. A burning smell indicates a failing power supply, distended capacitors indicate motherboard damage, and continuous reboots usually point to memory or hardware faults.

Correct answer: B. Bluetooth

Bluetooth is the standard wireless technology used to connect close-range peripherals like a mouse and create a personal area network. Wi-Fi covers larger local networks, NFC requires extremely close proximity, and microwave is used for long-range wireless links.

Correct answer: D. SaaS

Software as a service provides end users with fully managed applications over the internet for a recurring fee. IaaS provides virtual infrastructure, PaaS provides development platforms, and DaaS provides virtual desktop environments.

Correct answer: B. Positioned around the display panel

Wireless and cellular antenna wires are typically routed around the display panel to optimize signal reception. Placing them under the keyboard or on the battery would cause interference, and internal cards rarely use external USB antennas.

Correct answer: A. RAID 6

RAID 6 uses dual parity, allowing the array to survive the simultaneous failure of two drives without data loss. RAID 1, 5, and 10 can only tolerate a single drive failure or require specific drive combinations to survive dual failures.

Correct answer: B. Disable regularly scheduled defragmentation of the SSD

Solid-state drives suffer wear from excessive write cycles, making scheduled defragmentation unnecessary and harmful to their lifespan. Operating systems should use the trim command for optimization instead of traditional magnetic drive defragmentation.

Correct answer: B. CAT 6

A CAT 6 cable supports both data and Power over Ethernet for the VoIP phone up to 100 meters. Fiber, coaxial, and CAT 3 cables cannot carry the electrical power required by the device over the network link.

Correct answer: B. 445

The Server Message Block protocol uses port 445 for direct TCP IP network sharing. Blocking port 445 at the firewall isolates the network from external SMB traffic and helps prevent the spread of ransomware.

Correct answer: D. GPS

The Global Positioning System uses satellite signals to provide precise latitude and longitude coordinates outdoors. Cellular and Wi Fi provide general approximations based on tower triangulation or signal strength.

Correct answer: A. SMTP

Simple Mail Transfer Protocol is the standard used to send outgoing email messages over the internet. POP3 and IMAP are strictly used for retrieving and receiving messages, while HTTPS secures standard web traffic.

Correct answer: D. Cat 6a

Category 6a twisted pair cabling reliably supports 10 Gigabit Ethernet over the full 100 meter distance. Standard Category 6 supports 10 Gbps only up to 55 meters before signal attenuation causes unreliable network performance.

Correct answer: C. Wi-Fi

Enabling Wi-Fi allows mobile devices to connect to local wireless networks for internet access when cellular data fails. Bluetooth lacks internet routing capabilities, GPS only provides location services, and SIM locking is a security feature.

Correct answer: A. Upgrade the system from 4 GB to 16 GB of RAM

Adding more RAM allows the system to keep more applications open simultaneously without relying on slower virtual memory. Upgrading to an HDD would decrease performance, and network cards do not affect local multitasking.

Correct answer: C. Place the loose wire back into its correct slot and firmly press it into place with the punchdown tool

A punchdown tool firmly seats the wire into its slot, cutting the insulation and securing it to the metal contacts. Twisting or stripping wires manually is incorrect, and replacing the block is unnecessary.

Correct answer: D. SaaS

Software as a Service delivers fully managed applications over the web, typically accessed through a browser. Hosted email platforms like Google Workspace fit this model, whereas IaaS provides virtualized infrastructure and PaaS provides development environments.

Correct answer: C. Policy enforcement

Mobile Device Management solutions use policy enforcement to restrict user actions and enforce security baselines. By configuring application allowlists or blocklists, administrators can prevent the installation of unapproved software on corporate devices.

Correct answer: A. RAID · E. Gigabit NIC

A RAID array provides fault tolerance to ensure data is not lost during a hard drive failure. A Gigabit NIC provides the necessary bandwidth for smooth video streaming across multiple devices on a home network.

Correct answer: D. Defective lightning cable

When multiple devices fail to charge using the same cable and power adapter, the issue lies with the charging accessories rather than the individual device batteries or ports. The shared lightning cable is the most likely culprit.

Correct answer: D. VT

Intel processors use Virtualization Technology, commonly abbreviated as VT, to support running virtual machines. AMD-V is the equivalent virtualization extension used by AMD processors.

Correct answer: D. RADIUS server

A RADIUS server is a common implementation of an AAA server, handling authentication, authorization, and accounting. DHCP and DNS servers manage network configuration and name resolution, not user authentication.

Correct answer: D. The smartphone's data connection is being throttled

Smartphone hotspots often experience throttled data speeds once a user exceeds their monthly high-speed data cap. Defective hardware or overheating would typically cause a complete failure rather than just reduced speeds.

Correct answer: B. USB 3

USB 3.0 operates at speeds up to 5 Gbps, categorizing it as SuperSpeed USB. Older versions like USB 2.0 only reach 480 Mbps, while USB 1.1 is limited to 12 Mbps, making them incorrect for this transfer rate.

Correct answer: B. SODIMM

Small Outline Dual Inline Memory Modules, or SODIMMs, are the standard form factor for laptop memory upgrades. Desktop memory uses standard DIMMs, while ECC and single-channel describe specific server features or bus configurations rather than physical size.

Correct answer: D. Hard drive

Self-Monitoring, Analysis, and Reporting Technology, or SMART, monitors storage drives to predict and warn of impending failures. Memory, processors, and power supplies do not generate SMART errors, allowing you to quickly eliminate those components.

Correct answer: B. Continuous reboot

Continuous reboots often point to system instability caused by faulty hardware like defective RAM modules. A burning smell indicates a bad power supply, distended capacitors emit a foul odor, and an incorrect system clock indicates a dead CMOS battery.

Correct answer: B. Multimeter

A multimeter is used to measure voltage and confirm if the power supply is providing the correct electrical levels to the motherboard. A POST card diagnoses boot issues, while cable testers and loopback plugs are for network and port testing.

Correct answer: C. RAID 10

RAID 10 combines disk striping and mirroring to provide both high performance and full redundancy, preventing unscheduled downtime. RAID 0 lacks redundancy, RAID 1 lacks striping, and RAID 5 does not offer the same performance boost as RAID 10.

Correct answer: B. Enable the hotspot feature on the device that will provide the internet connection

Before tethering, you must enable the hotspot feature on the device providing the internet connection. This activates the necessary broadcast; disabling Wi-Fi or adding SIM cards is unnecessary, and modern devices have built-in tethering features.

Correct answer: D. Establish a theory of probable cause

After identifying the problem, the next step is establishing a theory of probable cause. You must theorize what is causing the intermittent connection before testing that theory, planning a fix, or verifying system functionality.

Correct answer: B. Cross-talk

Physical damage to a copper network cable compromises its internal shielding and twisted pair geometry, leading to electromagnetic interference known as crosstalk. Collisions and bad crimps are logic or manufacturing faults, whereas the flattened cable points directly to physical signal degradation.

Correct answer: C. Identify the problem

The first step of the troubleshooting methodology is to identify the problem by gathering information and questioning the user. Establishing a plan or verifying functionality occurs later in the process after the actual issue is diagnosed.

Correct answer: B. Private Cloud

A private cloud dedicates infrastructure to a single organization, providing the highest level of security and access control for internal users. Public, hybrid, and community clouds involve shared infrastructure or external hosting, which introduces more vulnerability.

Correct answer: B. Replace failed disk and rebuild the array

To restore a degraded RAID 5 array, you must replace the failed disk and initiate a rebuild. Removing the failed disk without inserting a replacement leaves the array vulnerable, and system restores do not fix hardware faults.

Correct answer: B. Go to the BIOS/UEFI settings and changing the boot order

A no bootable device error often occurs when the system attempts to read from a non-bootable disk before the primary drive. Checking the BIOS or UEFI settings to correct the boot order resolves this quickly without replacing hardware.

Correct answer: B. Reseat the wireless card in its slot

Physical impact suggests the wireless card may have become dislodged from its slot. Reseating the card verifies the hardware connection before replacing parts or changing software configurations.

Correct answer: A. The power supply's wattage rating

Dedicated graphics cards draw significant power, so you must verify the power supply has an adequate wattage rating. Efficiency ratings and available SATA connectors do not determine if the unit can support a new GPU.

Correct answer: A. Establish a theory of probable cause

The CompTIA troubleshooting methodology requires establishing a theory of probable cause after identifying the problem. Since the issue occurred after a power outage, the obvious theory is that the wireless access point rebooted and failed to reconnect properly.

Correct answer: A. Thermal paste

Thermal paste fills microscopic air gaps between the CPU and the heat sink to ensure efficient heat transfer. Heat sinks, cooling fans, and radiators dissipate heat but cannot transfer it effectively from the processor without a conductive compound.

Correct answer: C. VLAN

A virtual local area network logically separates ports on a single physical switch into distinct broadcast domains. VPNs and DSL modems provide external connectivity, while NAT simply translates private IP addresses to public ones.

Correct answer: C. Play music through your phone to verify sound comes through the headphones

Playing music verifies actual audio routing and hardware functionality for Bluetooth headphones. While checking the paired status confirms initial handshaking, it does not test whether the audio profile is working correctly.

Correct answer: A. Inspect the connector and cable for physical damage

When replacing internal laptop components, technicians must inspect the surrounding ribbon cables and connectors for damage. Thermal paste is only for processors, and integrated webcams connect internally rather than via external USB ports.

Correct answer: C. Boot to BIOS and select the HDD from the boot order

If a system loads a Preboot Execution Environment, it means the BIOS boot order is currently set to boot from the network first. Accessing the BIOS to change the boot order to the hard drive resolves this issue.

Correct answer: D. Defective ribbon advance mechanism

An impact printer relies on a ribbon that must advance continuously to supply fresh ink. If the print fades horizontally across a single line, the ribbon advance mechanism is stuck, causing the print head to strike the same depleted section of the ribbon.

Correct answer: A. Cable

Cable internet utilizes a hybrid fiber-coaxial infrastructure to provide high-speed bidirectional data transmission. While fiber offers higher speeds directly to the premises, cable internet specifically relies on the coaxial portion of the HFC network.

Correct answer: C. DHCP

Dynamic Host Configuration Protocol uses the connectionless User Datagram Protocol for discovering and assigning IP addresses quickly. Protocols like HTTPS and SSH require reliable delivery, so they rely on the connection-oriented TCP protocol instead.

Correct answer: B. A static address has been configured on the workstation

Configuring a static IP address that conflicts with a DHCP server's active scope will cause persistent duplicate IP address errors. To resolve this, network administrators should either switch the device to dynamic addressing or exclude the static address from the server scope.

Correct answer: B. CPU slot

The circled area indicates the CPU slot, the designated interface where the processor installs on the motherboard. Recognizing motherboard components by sight is essential, as memory slots and power connectors have distinctly different shapes.

Correct answer: D. 137

NetBIOS over TCP/IP uses port 137 by default for name registration and resolution services. Web traffic relies on ports 80 and 443, while email retrieval uses port 143, ruling out those alternatives for legacy network discovery.

Correct answer: A. LCD

An LCD panel utilizes a fluorescent backlight to illuminate the image, distinguishing it from modern display technologies. OLED displays generate their own light, while modern LED displays use light-emitting diodes, making fluorescent specific to older LCDs.

Correct answer: B. File sharing

Enabling file sharing provides network users access to data stored on a server's partition. RAID storage is a preliminary step, while print servers and audit logging do not directly grant data access.

Correct answer: B. Turn off the television and Roku, unplug and replug the HDMI cable, and then restart both units

High-bandwidth Digital Content Protection errors occur when an HDMI source and display fail their digital rights management handshake. Powering down both devices and reseating the cable forces a fresh authentication cycle to resolve the error.

Correct answer: D. The wireless access point is experiencing RF interference

Radio frequency interference causes packet loss and retransmissions on wireless networks, resulting in high latency and reduced throughput. A high signal-to-noise ratio is actually optimal, and fiber WAN connections easily support wireless local networks.

Correct answer: A. Firewall

Firewalls use access control lists to monitor and filter network traffic based on predetermined security rules, establishing a barrier between trusted and untrusted networks. While managed switches also use access control lists, firewalls are the primary security policy enforcement point.

Correct answer: D. Motherboard

A foul chemical smell usually indicates a leaking or distended capacitor on the motherboard. A burning smell would point to the power supply, but the distinct chemical odor targets the board components directly.

Correct answer: C. 15,000 rpm

Higher revolutions per minute allow a mechanical hard drive to read and write data faster. Among the listed options, 15,000 RPM drives provide the best raw mechanical performance for demanding workloads.

Correct answer: A. Backup the hard drive

A S.M.A.R.T. error indicates an imminent hard drive failure, so backing up the data immediately is the top priority. Running disk repair utilities comes later and risks further data loss.

Correct answer: C. NetBIOS

NetBIOS operates over TCP port 139 by default to provide session management and name resolution on legacy networks. The other protocols use different ports, such as SMB on 445 and HTTPS on 443.

Correct answer: C. 169.254.64.23

The address 169.254.64.23 is an Automatic Private IP Addressing address, also known as a link-local address. Addresses in the 169.254 range are automatically assigned when a DHCP server is unavailable.

Correct answer: C. 25

Simple Mail Transfer Protocol uses port 25 to send outbound email traffic between hosts. Port 143 is for IMAP, and port 22 is for SSH, making them incorrect for sending mail.

Correct answer: B. RJ-11

An RJ-11 connector is the standard interface used to terminate household telephone cables. The exam uses RJ-45 for Ethernet, F-type for coaxial, and LC for fiber optic connections.

Correct answer: A. 512 GB SSD

Upgrading from a mechanical hard drive to a solid-state drive provides the most dramatic improvement for boot times and application loading. The system already has ample memory and processing power, so replacing the slow storage medium resolves the bottleneck.

Correct answer: C. 443

Secure web browsing relies on HTTPS, which encrypts traffic over port 443. Standard HTTP uses port 80 and lacks encryption, while file transfer protocols use entirely different ports.

Correct answer: D. Private cloud

A private cloud is dedicated entirely to a single organization, providing maximum security and operational control. Public and hybrid clouds involve shared infrastructure, which reduces the direct control an organization has over the hardware.

Correct answer: A. 802.11ac

The 802.11ac wireless standard provides the fastest data transfer speeds among the listed options. Older standards such as 802.11n, 802.11a, and 802.11g offer significantly lower theoretical maximum throughputs.

Correct answer: C. SaaS in a private cloud

Software as a Service provides cloud-based accounting software while meeting the requirement to reduce costs. Choosing a private cloud deployment ensures dedicated resources and prevents data comingling, which addresses the security concerns.

Correct answer: C. Fiber optic cable

Fiber optic cable is the best choice to handle 10 Gbps throughput between two switches. Cat 5e and Cat 3 cables are limited to 1 Gbps and 10 Mbps respectively, making them insufficient for this requirement.

Correct answer: C. Virtual Desktop Infrastructure

Virtual Desktop Infrastructure is the correct expansion for the abbreviation VDI. VDI centralizes desktop instances on a single server, allowing users to access them via thin clients while reducing operational expenses.

Correct answer: B. Printer control language

A printer control language is a page description language that dictates how pages are laid out and printed. The Internet Printing Protocol and Line Printer Daemon handle network job submission, not page layout.

Correct answer: C. It isolates the application in a separate environment, preventing changes to the main system

A virtual machine in sandbox mode isolates the application in a separate environment, preventing changes to the main system. This containment protects the host operating system and data from potential damage during testing.

Correct answer: B. Configure the email app to download attachments only when connected to Wi-Fi

Configuring an email application to download large attachments only over Wi-Fi directly prevents unnecessary cellular data consumption. Disabling mobile data entirely or restricting synchronization times are too disruptive, while providing a separate device is an impractical and costly workaround.

Correct answer: A. TXT

TXT (text) DNS records are used to store machine-readable data, including email authentication methods like SPF, DKIM, and DMARC. These records help prevent email spoofing, whereas SRV, PTR, and SOA records handle services, reverse lookups, and zone authority respectively.

Correct answer: C. 192.168.1.254

A valid IPv4 address uses 32 bits expressed in dotted decimal notation, with four octets separated by periods. The address 192.168.1.254 fits this format, while the other options represent a MAC address, an IPv6 loopback, and an improperly formatted address.

Correct answer: C. These channels do not overlap, reducing interference

Channels 1, 6, and 11 are the only non-overlapping channels in the 2.4 GHz wireless band. Selecting these channels minimizes signal interference from neighboring networks, which is crucial for maintaining performance in crowded environments.

Correct answer: A. USB Type C

USB Type-C connectors are rotationally symmetrical, meaning they can be inserted into a port in either direction without causing damage. Older connectors like Type-A, Type-B, and FireWire are not reversible and require a specific orientation.

Correct answer: C. POP3

The POP3 protocol downloads emails to the local client and removes them from the server by default. IMAP synchronizes messages across multiple devices, while SMTP is strictly for sending mail, and HTTPS is used for secure web browsing.

Correct answer: B. Set a passcode on the smartphone to meet the security policy requirements

Mobile device management solutions enforce corporate security policies by checking device configurations. Setting a passcode on the smartphone directly meets the compliance requirement, whereas reinstalling the app, factory resetting, or disabling the policy are unnecessary or unauthorized actions.

Correct answer: C. Unmanaged switch

A switch places each connected host into its own collision domain by using MAC address tables to forward frames only to the correct port. Hubs and repeaters create a single shared collision domain, while access points manage wireless connections.

Correct answer: C. CAT 5e

Category 5e cable supports gigabit speeds up to one thousand megabits per second, meeting the requirement. It remains the cheapest acceptable option, as Category 6 and 7 cables cost more while Category 5 only supports fast Ethernet.

Correct answer: D. Verify that multi-touch gestures are enabled in the trackpad settings

Operating system updates can occasionally reset hardware configurations or disable specific features. Checking the trackpad settings ensures multi-touch gestures are enabled before assuming third-party software interference or hardware failure.

Correct answer: C. 9.6" x 9.6"

The microATX form factor has maximum dimensions of 9.6 inches by 9.6 inches. Mini-ITX is smaller at 6.7 inches square, while standard ATX is larger at 12 by 9.6 inches.

Correct answer: C. Firewall

A firewall uses access control lists to explicitly permit or deny traffic based on ports and IP addresses. An intrusion detection system only monitors passively for malicious signatures, while a load balancer distributes traffic.

Correct answer: D. Microphone

A microphone is the required input device for transmitting voice over an IP network without video. A webcam would be necessary only if the support call included a live video feed, which the requirement specifically excludes.

Correct answer: A. The host system has insufficient free space, so increase storage on the host machine

Dynamic disk allocation relies on available storage space on the host machine to expand the virtual machine disk. If the host runs out of physical space, the virtual disk cannot grow, so increasing host storage resolves the issue.

Correct answer: A. Hyperthreading

Hyperthreading allows a single physical processor core to function as two logical cores for improved multitasking. A multi-core processor provides additional physical cores rather than virtualizing logical threads within a single core.

Correct answer: B. VDI

Virtual Desktop Infrastructure provisions virtual machines as desktops for users. Thin clients connect to these hosted virtual machines. SaaS provides applications, PaaS provides platforms, and IaaS provides basic computing resources.

Correct answer: B. A punchdown tool secures wires into a punchdown block, while a crimping tool secures connectors onto cables

A punchdown tool secures individual wires into a punchdown block. A crimping tool attaches connectors onto the ends of cables. Punchdown blocks are for patch panels, while crimping creates direct device connections.

Correct answer: B. Loose cable connections

Loose or faulty video cable connections cause intermittent signal loss and screen flashing. Electrical connections interrupted momentarily make monitors go black. RAM, CPU overheating, and outdated systems cause performance issues, not signal loss.

Correct answer: C. PCIe x1

Wireless network adapters typically use PCIe x1 expansion slots for connectivity. PCIe x1 slots handle smaller peripherals like network cards. PCIe x16 slots are reserved for graphics cards, AGP is obsolete, and eSATA handles external storage.

Correct answer: A. Fiber

Fiber optic cable is the required medium for network links exceeding 100 meters. Copper cables like shielded or plenum are limited to short distances, making fiber the only viable choice for connecting buildings a kilometer apart.

Correct answer: B. WLAN

Installing an 802.11ax access point creates a wireless local area network. Wireless protocols designate local coverage areas, eliminating wide area, storage area, and metropolitan area network options.

Correct answer: B. Check if NFC is enabled in the smartphone's settings

An operating system update can reset settings or disable features like near field communication. Since the payment terminal works for other customers, checking the smartphone settings to ensure NFC is enabled is the logical first step.

Correct answer: A. Schedule an authorized downtime period, replace physical disk 3, rebuild the array, and confirm that the RAID is no longer reporting itself as degraded

A degraded RAID 5 array still functions but lacks redundancy, so you should schedule downtime before replacing the failed drive and rebuilding the array. Reformatting the drives or changing the RAID level would cause data loss.

Correct answer: B. LCD panel

Spiderweb cracks with a correct image indicate physical damage to the LCD panel. The digitizer handles touch input, so if touch still works, the digitizer glass is intact and only the LCD panel needs replacement.

Correct answer: D. Tone generator and probe

A tone generator and probe trace cables by sending an audible signal through the wire. A multimeter cannot easily span distant rooms, while punchdown tools and loopback plugs are for terminating and testing ports locally.

Correct answer: B. BIOS settings

The BIOS or UEFI settings control firmware-level hardware like the Trusted Platform Module. Device Manager and Computer Management only display operating system level peripherals, not low level boot security configurations.

Correct answer: D. The power supply wattage is too low for the components in the computer

An underrated power supply causes partial operation where low-draw components like fans spin but the system lacks wattage to complete POST. A dead CMOS battery rarely prevents display output, while voltage mismatches prevent startup.

Correct answer: D. The NumLock has been enabled for the laptop

Enabled NumLock on laptops activates embedded number keys over letter keys, causing typing errors. While debris or faulty drivers can cause general hardware malfunctions, they do not specifically transform letters into adjacent numerals.

Correct answer: A. Ensure that port 20 is open

Active FTP transfers data over port 20, which must be open for downloads to succeed. Port 161 is used by SNMP, certificates relate to secure web pages, and DNS flushing only resolves hostnames rather than blocked transfer ports.

Correct answer: B. 20 TB

RAID 10 mirrors data across paired drives, which means you lose half of your total raw storage capacity to redundancy. With four 10 TB drives providing 40 TB raw, the usable storage space is exactly 20 TB.

Correct answer: D. Fan power

The circled area indicates fan power connectors on the motherboard. The mainboard power uses a 24-pin connector, and CPU power uses an 8-pin connector, while AGP is a legacy slot.

Correct answer: D. Internet of Things

Internet of Things (IoT) describes a network of smart appliances and sensors equipped with network connectivity. IoT devices commonly rely on Zigbee or Z-Wave for wireless communication, unlike traditional servers which use standard Ethernet or Wi-Fi.

Correct answer: A. Interference

Wireless microwave radio links require a clear line of sight to maintain a reliable connection. In a wooded area, trees and branches obstructing this path cause signal interference, leading to the sporadic connectivity reported by users.

Correct answer: A. 802.11ax

The 802.11ax standard, also known as Wi-Fi 6, operates on the 2.4 GHz and 5 GHz frequency bands and reaches theoretical speeds up to 9.6 Gbps. Older standards like 802.11ac and 802.11n offer significantly lower maximum speeds.

Correct answer: C. Plug AC adapter in a different outlet

Troubleshooting methodology requires questioning the obvious first, such as checking whether the wall outlet is controlled by a light switch or simply faulty. Replacing the battery or DC jack is not practical while traveling, making a simple outlet change the best initial step.

Correct answer: D. It allows the application to run within a virtual environment on macOS

Cross-platform application virtualization allows a Windows application to run inside an isolated virtual environment on macOS. This provides compatibility without modifying the host operating system or setting up a dual-boot configuration.

Correct answer: C. STP

Shielded twisted pair cable protects against electromagnetic interference from nearby fluorescent lights. Unshielded twisted pair is susceptible to this interference, while coaxial and fiber are completely different cable categories.

Correct answer: D. Wireless switch on your laptop

Troubleshooting follows the OSI model from the physical layer upward when a single user loses connectivity. Since others connect fine, checking the physical laptop wireless switch or toggle is the most logical first step.

Correct answer: A. Orientation

Page orientation switches printing between portrait and landscape. Landscape orientation prints horizontally to fit more columns on a page. Transparency is irrelevant, duplex prints on both sides, and collate organizes multiple copies in sequence.

Correct answer: B. Settings > Devices > Touchpad > Speed

Touchpad speed directly controls cursor movement across the screen. Sensitivity adjusts the pressure required for taps, while mouse settings apply to external mice rather than the built-in trackpad.

Correct answer: C. 802.11ac

The 802.11ac standard operates in the 5 GHz band, providing many non-overlapping channels to prevent interference. Older 2.4 GHz standards like 802.11b and 802.11g only offer three non-overlapping channels. 802.1q is a VLAN tagging standard.

Correct answer: B. Digitizer

A digitizer is the touch-sensitive layer that converts screen taps into digital input. Since the display appears intact and the touchpad works, the GPU and LCD panel are functioning correctly, isolating the issue to touch input.

Correct answer: D. MAM

Mobile Application Management isolates corporate applications and data without controlling the entire personal device. MDM and EMM provide full device control, which violates employee privacy expectations in a bring your own device environment.

Correct answer: A. HDD

A failing hard disk drive makes a loud rhythmic clicking noise because it relies on moving mechanical parts. Solid state drives and memory modules have no moving parts, so they would not produce this sound during operation.

Correct answer: A. RJ-11

Plain old telephone service wiring uses an RJ-11 connector to terminate standard phone lines. RJ-45 is used for Ethernet networks, F-type connectors are used with coaxial cables, and ST connectors are used for fiber optic cabling.

Correct answer: D. 143

The Internet Message Access Protocol uses TCP port 143 to retrieve emails. Port 110 is used by POP3, port 25 is used by SMTP, and port 443 is used for secure HTTPS web traffic.

Correct answer: C. Their workstation cannot reach the DHCP server

An IP address starting with 169.254 indicates Automatic Private IP Addressing, which occurs when a workstation cannot reach a Dynamic Host Configuration Protocol server. Without a valid IP configuration from DHCP, the device cannot properly route traffic.

Correct answer: C. Smart card reader

Identification badges with embedded electronic chips are read by a smart card reader to authorize system access. Magnetic readers scan stripes, barcode scanners read visual patterns, and automatic document feeders handle scanner media.

Correct answer: A. 3G

HSPA+ and EV-DO are cellular standards that fall under the third generation of mobile telecommunications. Fourth generation and Long Term Evolution technologies provide significantly faster data speeds than these older protocols.

Correct answer: B. Clean the printer's transfer roller

Streaks of toner across printed pages usually indicate a dirty transfer roller that needs cleaning. Replacing the toner cartridge fixes empty cartridges, while fuser temperature and feed rate issues cause different paper jams or adhesion problems.

Correct answer: D. To limit the total amount of mobile data a user has in a billing period

A data cap restricts the total amount of mobile data a user can consume within a billing period. The other options describe unrelated concepts like content filtering or bandwidth throttling rather than a usage limit.

Correct answer: A. Optical network terminal

An optical network terminal converts fiber optic signals to electrical Ethernet for interior networks. Cable modems use coaxial cables, digital subscriber lines use telephone wiring, and software-defined networking is a management approach.

Correct answer: B. Signal attenuation

Wireless bridges require clear line of sight, so the new flagpole causes signal attenuation when it obstructs the path. DHCP exhaustion would fully prevent connectivity, and bandwidth saturation would not correlate directly with the physical flagpole.

Correct answer: D. PaaS

Platform as a Service provides a managed programming environment for software development. Infrastructure provides raw virtual machines, Software provides finished applications, and Desktop provides remote virtualized end user environments.

Correct answer: A. Switch

Switches isolate traffic to specific ports, breaking up collision domains and eliminating the shared bandwidth problem of hubs. Repeaters simply amplify signals, access points add wireless radios, and firewalls filter security traffic.

Correct answer: C. The smartphone is overheated

Mobile devices shut down automatically to protect internal components when they exceed safe operating temperatures. Because internet connectivity and battery depletion are less likely to cause a sudden shutdown after sun exposure, overheating is the clear issue.

Correct answer: A. You forgot to apply thermal paste to the processor during the installation

Thermal paste creates a conductive layer between the processor and heat sink to dissipate heat effectively. Missing thermal paste causes rapid overheating and automatic shutdown, while a forgotten load lever or fan cable would prevent booting or trigger separate warnings.

Correct answer: D. Bluetooth is not enabled

AirPods rely entirely on Bluetooth to connect and stream audio from an iPhone. Since the phone successfully streams video over cellular or WiFi, airplane mode and general connectivity are ruled out, leaving disabled Bluetooth as the cause.

Correct answer: C. Incorrect paper size · D. Excess paper in the feed path

Incorrect paper size and excess paper in the feed path cause physical creasing and bunching. Impact printers use tractor feeds with specialized holes. Print heads affect printing, while tension issues cause pooling rather than creasing.

Correct answer: A. The broadcast is disabled on the wireless router

Disabling SSID broadcast prevents the network name from appearing in standard wireless scans. Encryption settings, DHCP support, and shared frequency bands do not stop the beacon from displaying the network name.

Correct answer: B. Check the virtualization platform's compatibility with the new update

Checking compatibility with the new update is the first troubleshooting step when software breaks after an upgrade. Reinstalling the operating system or rolling back the platform are time-consuming steps that should only follow initial diagnostics.

Correct answer: A. Burning smell

A burning smell often indicates a failing or overheated power supply. However, continuous reboots and distended capacitors are also classic symptoms of power delivery issues, making the scenario slightly open to interpretation.

Correct answer: A. DVI-D

A DVI-D port is identified by a flat horizontal blade on the right side, distinguishing it from analog connections. A DVI-I port replaces this flat blade with a cross-shaped arrangement of four pins surrounding the blade.

Correct answer: C. Server's NIC drivers

Windows Updates can automatically install incompatible network interface card drivers, causing limited connectivity. Rolling back the NIC driver restores the previous working version. The antivirus, browser, and IP address are not rolled back through Windows Update.

Correct answer: D. eSATA is used to add additional external storage devices

External SATA is specifically designed to connect external storage devices. It requires heavily shielded cables and supports high speeds, making the internal storage and USB speed distractors incorrect.

Correct answer: A. Upgrade the WLAN card driver

Updating the wireless network card driver enables the proper functionality needed to achieve higher speeds. Without the correct driver, the card defaults to slower legacy rates instead of utilizing advanced channel bonding features.

Correct answer: A. Punchdown tool

A punchdown tool is only used to terminate cable wires into a patch panel or wall jack, which are already installed here. Strippers, crimpers, and testers are still needed to build and verify the custom patch cables.

Correct answer: C. Color depth

Color depth dictates the number of unique colors a display can render, so a few hundred colors indicates an 8-bit setting. Resolution affects pixel clarity, while refresh rate controls screen redraw speed, eliminating those choices.

Correct answer: B. Transfer belt

The transfer belt collects the four toner colors from their respective imaging drums before applying them to the paper. The transfer roller applies a charge to the paper itself, while the pickup roller handles paper feeding.

Correct answer: D. IaaS

Infrastructure as a Service provides virtualized computing hardware, replacing the need for on-premise servers and networking gear. Software and Platform services deliver applications and development environments rather than underlying hardware.

Correct answer: D. Cable stripper

A cable stripper is specifically designed to score and remove the outer plastic jacket from twisted pair cables. Crimpers attach connectors, punchdown tools terminate wires into blocks, and testers simply verify electrical continuity.

Correct answer: D. Verify system functionality

After implementing a solution, the next step is to verify full system functionality and implement preventive measures. Documentation is the final step and should only be done after confirming the repair works.

Correct answer: A. IMAP

IMAP operates over port 143 to retrieve emails while leaving them on the server. POP3 uses port 110, HTTPS uses port 443, and RDP uses port 3389.

Correct answer: A. The desktop's CMOS battery has failed

A failed CMOS battery causes a workstation to lose its date and time settings when powered off. A loose power cable would prevent booting entirely, while overheating and swollen capacitors cause random shutdowns or system instability, not time loss.

Correct answer: C. The card will run at x8 speed

A PCIe x8 card installed in an x16 slot will run at its designed speed of x8. PCIe slots are forward and backward compatible, meaning the card uses its maximum available lanes without performance loss unless the motherboard physically limits the electrical lanes.

Correct answer: B. Calibration

Calibration is the correct maintenance procedure to realign an inkjet printer and fix angled or incomplete printing. Replacing the cartridge or performing a maintenance cleaning addresses clogged nozzles or empty ink, but calibration specifically fixes alignment issues.

Correct answer: D. Replace the power supply

A faulty power supply fan requires replacing the entire power supply unit. Technicians should never open a power supply to replace internal components due to the severe risk of high voltage electrical shock, even if the fan is grinding.

Correct answer: A. Check the power connection to the motherboard

The next troubleshooting step is to verify the power connections are securely connected to the motherboard, specifically the 24-pin ATX cable. Since the power supply tests okay, replacing it is premature, and resetting the memory or CMOS will not restore power.

Correct answer: B. Incorrect chroma display on the printed document

Incorrect chroma display occurs when printed colors do not match the screen due to mismatched color profiles. Since the printer is nearly new, faded print from low toner is unlikely, and ghosting or misalignment affect image positioning rather than color accuracy.

Correct answer: D. Supporting a legacy application without upgrading the entire infrastructure

Application virtualization provides an isolated environment that allows legacy software to run on modern operating systems without requiring infrastructure upgrades. Deploying updates or running CPU-intensive tasks are poor fits because virtualization adds performance overhead.

Correct answer: A. Remove the hard drive from the laptop, place it in an external USB enclosure, and connect it as a secondary drive to the user's desktop computer to copy the spreadsheets

Using an external USB enclosure allows the functional hard drive to be read as a secondary device by another system, providing immediate data access. Installing it as a primary drive would likely fail due to missing hardware drivers.