Practice for the CCNA exam with 22 exam-style practice questions, instant answer reveals, and concise explanations of every correct answer. Topics include: What is a function of Cisco Advanced Malware Protection for a Next-Generation IPS?. Follow @CertPunch and visit certpunch.com for more certification practice exams and study content.
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What you will practice
- What is a function of Cisco Advanced Malware Protection for a Next-Generation IPS?
- How does a Cisco Unified Wireless Network respond to Wi-Fi channel overlap?
- What is the expected outcome when an EUI-64 address is generated?
- What is the primary function of a Layer 3 device?
- What is a service that is provided by a wireless controller?
- Why would a network administrator choose to implement automation in a network environment?
Answers and explanations
Tap a question to expand the answer and the exam reasoning. Try to commit to your own pick first.
Q1. What is a function of Cisco Advanced Malware Protection for a Next-Generation IPS?
Answer: A. A. inspecting specific files and file types for malware
Cisco Advanced Malware Protection focuses on file analysis and reputation to detect malicious software. URL filtering is handled by distinct security features, whereas authenticating users is handled by access control protocols.
Q2. How does a Cisco Unified Wireless Network respond to Wi-Fi channel overlap?
Answer: C. C. It analyzes client load and background noise and dynamically assigns a channel.
Cisco wireless controllers use Radio Resource Management to automatically mitigate interference. It continuously analyzes client load and noise to dynamically assign the best channels for access points.
Q3. What is the expected outcome when an EUI-64 address is generated?
Answer: C. C. The seventh bit of the original MAC address of the interface is inverted
Generating an EUI-64 address involves inserting FFFE into the MAC address and inverting the seventh bit. This inversion modifies the Universal/Local bit to accurately form the interface identifier.
Q4. What is the primary function of a Layer 3 device?
Answer: D. D. to pass traffic between different networks
A Layer 3 device, like a router, routes traffic between different networks based on IP addresses. Layer 2 switches handle local forwarding within the same broadcast domain.
Q5. What is a service that is provided by a wireless controller?
Answer: B. B. It manages interference in a dense network.
A wireless LAN controller provides Radio Resource Management, which dynamically manages RF interference in dense deployments. Threat mitigation and routing are typically handled by dedicated security appliances and routers.
Q6. Why would a network administrator choose to implement automation in a network environment?
Answer: A. A. To simplify the process of maintaining a consistent configuration state across all devices
Network automation ensures consistent configuration states across devices while reducing manual human error. Storing device information and managing accounts are specific tool features rather than the primary architectural goal of automation.
Q7. A device detects two stations transmitting frames at the same time. This condition occurs after the first 64 bytes of the frame are received. Which interface counter increments?
Answer: C. C. late collision
A late collision occurs after the first sixty four bytes of a frame have been transmitted. Standard collisions happen earlier in the transmission window, while runts and CRC errors describe damaged or truncated frames.
Q8. Which syslog message logging level displays interface line protocol up/down events?
Answer: D. D. notifications
Interface line protocol transitions generate syslog messages at the notifications level, which is level five. The lower numerical levels are reserved for more severe emergencies that require immediate intervention.
Q9. Which Cisco proprietary protocol ensures traffic recovers immediately, transparently, and automatically when edge devices or access circuits fail?
Answer: C. C. HSRP
The Hot Standby Router Protocol is a Cisco proprietary first-hop redundancy protocol. VRRP is an open standard, while FHRP is a general category and SLB balances server traffic.
Q10. Which type of IPv6 address is publicly routable in the same way as IPv4 public addresses?
Answer: D. D. global unicast
Global unicast addresses are designed to be routed publicly across the internet. Unique local and link-local addresses are restricted to internal or local network scope.
Q11. A network engineer is upgrading a small data center to host several new applications. Server backups are sent to a specific remote backup subnet across an MPLS provider network and are expected to consume up to 90% of the bandwidth during…
Answer: C. C. Advertise a more specific route for the remote backup subnet via the secondary circuit.
Routers always prefer the most specific matching prefix when making forwarding decisions. Advertising a longer subnet mask over the secondary circuit successfully engineers the backup traffic without requiring expensive physical upgrades.
Q12. Which REST method updates an object in the Cisco DNA Center Intent API?
Answer: D. D. PUT
The PUT method updates or replaces an existing object in a REST API. The POST method creates new objects, which makes it a common trap for candidates expecting an update operation.
Q13. Which property is shared by 10GBase-SR and 10GBase-LR interfaces?
Answer: C. C. Both require fiber cable media for transmission.
Both 10GBase-SR and 10GBase-LR require fiber-optic cable media for transmission. SR typically uses multimode fiber while LR uses single-mode, which eliminates the options specifying either UTP or a single shared fiber type.
Q14. Which functionality is provided by the console connection on a Cisco WLC?
Answer: C. C. out-of-band management
A console connection provides out-of-band management access directly through a physical cable. It operates independently of the network configuration, whereas in-band management options require active IP connectivity.
Q15. By default, how long will the switch continue to know a workstation MAC address after the workstation stops sending traffic?
Answer: B. B. 300 seconds
By default, Cisco switches age out dynamically learned MAC address entries after 300 seconds of inactivity. This standard default aging time allows the switch to automatically remove stale entries from the table.
Q16. Which statement about LLDP is true?
Answer: B. B. It is configured in global configuration mode.
LLDP is enabled and configured in global configuration mode using the command lldp run. It operates strictly at Layer 2, making it vendor-neutral and completely separate from transport layer protocols.
Q17. Which QoS tool is used to optimize voice traffic on a network that is primarily intended for data traffic?
Answer: D. D. PQ
Priority Queuing ensures high-priority traffic like voice is transmitted before lower-priority data. Be careful here, because Low Latency Queuing is the modern Cisco best practice, which makes this question somewhat ambiguous despite the intended answer.
Q18. How does the dynamically-learned MAC address feature function?
Answer: A. A. The CAM table is empty until ingress traffic arrives at each port
A switch begins with an empty MAC address table. As frames arrive on a port, the switch examines the source MAC address and records it in its content addressable memory table, allowing it to dynamically build the forwarding database.
Q19. What is an expected outcome when network management automation is deployed?
Answer: D. D. Software upgrades are performed from a central controller.
A key expected outcome of network management automation is centralized lifecycle management. This includes the ability to perform software upgrades and distribute configurations from a central controller, significantly reducing manual operational effort.
Q20. What is the role of a firewall in an enterprise network?
Answer: A. A. determines which packets are allowed to cross from unsecured to secured networks
A firewall enforces security policies by determining which packets are permitted or denied when crossing boundaries between secure and unsecure networks. Options B, C, and D are incorrect because they either describe unsafe behaviors or omit the stateful inspection rules that modern firewalls use.
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