CISSP Practice Test – 94 Free Exam Questions with Answers

CISSP

94 questions · instant answer feedback · concise explanations · free

  1. Question 1 of 94Your company is designing a new e-commerce platform. During testing, a vulnerability scan reveals potential for SQL injection on the customer login page. The developers propose multiple options, and management asks you what is the BEST next step to reduce this risk before going live.

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    Correct answer: A. Train developers on secure coding practices and enforce input validation in the application code

    Secure coding practices and strict input validation directly resolve the root cause of injection vulnerabilities within the application itself. While a Web Application Firewall is a valuable compensating control, it does not actually fix the underlying flawed code and can potentially be bypassed.

  2. Question 2 of 94Your security operations team detects unusual outbound traffic from a finance server that may indicate an on-path (man-in-the-middle) attack. The CEO demands assurance that customer financial data has not been tampered with during transmission. Which control provides the BEST protection against this type of threat?

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    Correct answer: A. Implementing Transport Layer Security (TLS) with digital certificates

    Transport Layer Security with digital certificates provides both encryption and cryptographic integrity checks, ensuring data cannot be altered in transit. A host-based IDS only detects anomalies after they occur, while segmentation does not guarantee protection against active interception.

  3. Question 3 of 94Your company is building a new DevOps pipeline. During a security review, auditors warn that vulnerabilities may go unnoticed if testing isn't integrated into the development process. As the security manager, what is the BEST way to address this concern?

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    Correct answer: B. Integrate automated static and dynamic application security testing into the CI/CD pipeline

    Integrating automated SAST and DAST directly into the pipeline continuously identifies vulnerabilities early without slowing down rapid deployments. Manual code reviews and penetration tests are valuable, but they do not scale effectively for fast-paced continuous integration and delivery environments.

  4. Question 4 of 94An employee reports receiving an email that appeared to come from the company's HR department, asking them to update personal information through a suspicious link. After investigating, you confirm this is a phishing attempt targeting multiple staff members. As the security manager, what is the BEST immediate step to take?

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    Correct answer: D. Block the malicious domain and URLs through the organization's email and web filters

    Blocking the malicious domain and URLs at technical filters is the most effective immediate containment step to halt active exploitation. User training and email reminders are important preventative measures, but they are long-term solutions and will not stop the ongoing attack.

  5. Question 5 of 94A global financial company is moving customer authentication from passwords alone to a new solution. Management wants the strongest assurance of identity while balancing usability. Which of the following is the BEST option to implement?

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    Correct answer: C. Fingerprint biometrics with device certificates

    Combining fingerprint biometrics with device certificates implements robust multi-factor authentication using something you are and something you have. SMS-based passwords are easily intercepted via SIM swapping, and both factors must be independent types to provide true multi-factor assurance.

  6. Question 6 of 94A developer pushes a critical patch directly into production without going through the organization's change management process. A week later, the patch causes system downtime during peak business hours. Senior management asks how this situation could have been prevented.

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    Correct answer: B. Enforce strict change management with a Change Advisory Board (CAB) review

    Enforcing strict change management with Change Advisory Board oversight directly prevents unauthorized code from bypassing risk evaluation before deployment. Automated regression testing is important, but it is a technical control that fails to address the core governance failure.

  7. Question 7 of 94An attacker launches a ransomware attack that encrypts your company's file servers, halting all order processing. The IT team reports they cannot immediately restore the servers. Executives demand to know how customer orders can continue while systems are down. Which plan should you activate to address this concern?

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    Correct answer: C. Business Continuity Plan

    The Business Continuity Plan directly addresses keeping critical business operations running during a disruption. For the exam, distinguish BCP from Disaster Recovery; BCP focuses on business survival, while DRP focuses specifically on restoring IT infrastructure.

  8. Question 8 of 94During an insider investigation, security staff discover a USB drive connected to a finance workstation. The drive may contain exfiltrated customer data. The lead investigator instructs the team to carefully remove the USB and prepare it for forensic analysis. What is the MOST important step to ensure the evidence will be admissible in court?

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    Correct answer: D. Record a detailed chain of custody documenting who handled the evidence and when

    A documented chain of custody legally proves that evidence was handled properly and not tampered with after collection. While write blockers and forensic imaging preserve data integrity, chain of custody is the absolute requirement for legal admissibility in court.

  9. Question 9 of 94Your company is migrating its customer payment processing system to a public cloud provider (IaaS). During a compliance review, auditors warn that a breach of cardholder data could trigger PCI DSS fines and destroy customer trust. Which responsibility must your company retain directly to BEST reduce regulatory and reputational risk?

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    Correct answer: A. Implementing and managing strong access controls for applications that process cardholder data

    In the Infrastructure as a Service shared responsibility model, the customer always retains accountability for securing their applications, data, and access controls. You cannot outsource regulatory liability, so relying on provider audits or notifications does not mitigate your direct compliance risk.

  10. Question 10 of 94Your company is updating its Business Continuity Plan (BCP) after opening two new global offices. Executives ask what should be done FIRST when revising the plan.

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    Correct answer: A. Conduct a Business Impact Analysis (BIA) to identify critical processes and dependencies

    Conducting a Business Impact Analysis identifies critical business processes, dependencies, and recovery time objectives. For the exam, remember the standard lifecycle order: the BIA establishes what matters most before you assess risks or update disaster recovery site contracts.

  11. Question 11 of 94A startup is developing a mobile payment app. The app must provide lightweight encryption that works efficiently on smartphones with limited processing power while still ensuring strong security to share keys. Which algorithm is the BEST choice?

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    Correct answer: C. Elliptic Curve Cryptography (ECC)

    Elliptic Curve Cryptography provides strong security with much smaller key sizes, making it computationally efficient for mobile devices. For the exam, when you see a scenario requiring strong cryptography with lightweight processing constraints, immediately look for ECC.

  12. Question 12 of 94A financial services company recently suffered a breach when an employee connected a personal, malware-infected laptop to the internal network. Executives want a control that will STOP unauthorized or non-compliant devices from connecting in the future. Which is the BEST solution?

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    Correct answer: A. Network Access Control (NAC)

    Network Access Control enforces pre-admission security checks to block unauthorized or non-compliant devices from connecting. Intrusion prevention systems and firewalls act after the device connects, which fails the requirement to stop the connection beforehand.

  13. Question 13 of 94Your organization stores customer financial records in a public cloud provider's object-storage service. The compliance officer requires that when the data retention period ends, the data must be permanently deleted so it cannot be recovered by anyone, including the cloud provider. Which action most effectively meets this requirement?

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    Correct answer: C. Use the provider's cryptographic erasure function

    Cryptographic erasure destroys the encryption keys protecting the data, rendering the ciphertext permanently unreadable. In cloud environments, you rarely have direct physical access to the underlying storage media to perform traditional overwriting or block-level wiping.

  14. Question 14 of 94A software assurance manager is reviewing a critical payroll web application before deployment. The team wants to find vulnerabilities in the source code itself, such as buffer overflows, input validation flaws, or insecure functions, without executing the program. Which testing approach should the manager select?

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    Correct answer: A. Static application security testing (SAST)

    Static application security testing analyzes source code without executing it to find flaws like insecure functions. Dynamic application security testing evaluates a running application from the outside, whereas fuzzing actively throws random data at it.

  15. Question 15 of 94A multinational healthcare provider is migrating sensitive patient records into a new SaaS platform hosted by a third-party cloud vendor. During the risk assessment, executives are concerned about regulatory compliance across regions (e.g., GDPR and HIPAA) and ask you, as the CISO, what should be done FIRST before moving forward.

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    Correct answer: A. Review and sign a data processing agreement (DPA) with the cloud vendor to ensure compliance obligations are met

    A Data Processing Agreement establishes the legal and contractual obligations required for regulatory compliance before sharing sensitive data. While technical controls like encryption and audits are essential, management must ensure contractual compliance gaps are closed before migration begins.

  16. Question 16 of 94Your organization recently experienced a tailgating incident, where an unauthorized individual followed an employee into the data center. The CEO asks you what is the BEST preventive control to stop this from happening again.

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    Correct answer: B. Deploying mantraps with biometric authentication

    A mantrap provides a strong physical preventive control by physically preventing more than one person from entering at a time. Cameras are only detective controls, and relying solely on guards or training leaves security dependent on inconsistent human behavior.

  17. Question 17 of 94During a Business Continuity Plan (BCP) review, senior leadership asks which type of disaster recovery site should be selected. The company processes financial transactions that cannot tolerate more than a few minutes of downtime, but cost efficiency is also a concern. Which is the BEST option?

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    Correct answer: A. Hot site

    A hot site provides the fully operational and immediately available infrastructure required to meet a recovery time objective of just a few minutes. While warm sites offer better cost efficiency, they require too much time to activate, making them unsuitable for critical financial processing.

  18. Question 18 of 94A hurricane has destroyed your company's primary data center. The disaster recovery team activates the BCP. Senior executives are pressuring you for a status update. Which action should you take FIRST as the CISO?

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    Correct answer: D. Ensure the safety and accountability of all on-site personnel before focusing on systems recovery

    Human life and safety always rank above data recovery, system restoration, or executive updates. Even under immense pressure from management, a security leader must first ensure all personnel are safe and fully accounted for before activating technical recovery procedures like failovers.

  19. Question 19 of 94Your SOC team detects unusual outbound connections from a sensitive R&D server. Initial triage suggests the attacker may be attempting to exfiltrate proprietary data. Senior management wants immediate assurance. As the CISO, what is the BEST action to take NEXT?

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    Correct answer: B. Activate the incident response plan

    Activating the incident response plan is the correct next step because it orchestrates the formal containment, forensic, and communication efforts required. While disconnecting the server seems logical, a CISO must ensure the structured process governs technical actions rather than acting hastily.

  20. Question 20 of 94A financial institution recently suffered an insider attack where an employee copied thousands of sensitive customer records to a USB drive. The board asks you what control should be implemented to PREVENT this from happening again.

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    Correct answer: A. Implement Data Loss Prevention (DLP) with endpoint blocking of removable media

    Endpoint data loss prevention is correct because it acts as a preventive control capable of actively blocking unauthorized file transfers to removable media. Options like random audits and SIEM monitoring are strictly detective controls, while policies alone lack technical enforcement.

  21. Question 21 of 94Your organization is building a new data center to host critical financial systems. The facility will contain densely packed racks of servers and storage arrays. Executives emphasize that equipment must not be damaged by suppression systems, but life safety must still come first. Which fire suppression method is the BEST choice for this environment?

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    Correct answer: C. FM-200 or clean-agent suppression systems

    Clean agent systems like FM-200 are the best choice because they suppress fires quickly without leaving residue or destroying electronic equipment. While carbon dioxide also protects equipment, it poses a lethal threat to personnel, violating the fundamental requirement of life safety.

  22. Question 22 of 94A multinational company is rolling out a customer-facing web portal that allows users to log in with their Google or Facebook accounts instead of creating new credentials. Security leadership wants to ensure that the company's portal only relies on the identity assertion provided by the external provider, without directly handling user passwords. Which technology is the BEST fit for this requirement?

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    Correct answer: C. OpenID Connect

    OpenID Connect is the best fit because it layers identity and authentication capabilities on top of the OAuth 2.0 framework. While OAuth 2.0 handles authorization delegation, it does not natively verify user identity, making OpenID Connect the standard for federated social logins.

  23. Question 23 of 94During an internal fraud investigation, your incident response team collects log files and employee emails that may later be used in civil litigation and possibly a criminal trial. Executives insist that the evidence must hold up under both regulatory audits and courtroom standards. What is the BEST action to take immediately after evidence is collected?

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    Correct answer: D. Document the chain of custody with signatures, timestamps, and transfer details for every handler

    Documenting the chain of custody with signatures and timestamps legally proves who handled the evidence and guarantees its integrity for court. Hashing and secure lockers preserve data physically, but they do not prove the human handling history required for admissibility.

  24. Question 24 of 94Your organization is adopting the NIST Risk Management Framework (RMF) for a new healthcare application that processes PHI. During a meeting, a project manager asks what must be done immediately after categorizing the information system.

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    Correct answer: A. Select baseline

    In the NIST Risk Management Framework, selecting baseline controls is the immediate next step after categorizing the system. You must select the appropriate security controls based on impact level before you can implement or document them.

  25. Question 25 of 94Your company recently suffered a data breach caused by an employee reusing weak passwords. To address the issue, management mandates security awareness training focused on password hygiene for all employees. Which type of control does this BEST represent?

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    Correct answer: A. Administrative / Preventive

    Security awareness training is an administrative control, and its goal here is to prevent future incidents by changing user behavior. Whenever the exam mentions training or policies, immediately categorize it as an administrative and preventive control.

  26. Question 26 of 94Your executives want to adopt a framework that focuses on governance and aligning IT goals with business objectives, not just security. They specifically want something that helps with auditability, accountability, and enterprise risk management across the organization. Which framework is the BEST fit?

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    Correct answer: C. COBIT

    The correct choice is COBIT because it is a framework focused specifically on IT governance and aligning business objectives. Expect NIST or ISO 27001 as strong distractors here, but those focus strictly on security operations and risk management rather than broad governance.

  27. Question 27 of 94During a financial audit, regulators demand proof that your online banking platform can immediately detect and respond if a user's digital certificate is revoked due to compromise. Your PKI team explains options for handling certificate status. Which approach BEST satisfies the regulator's requirement for real-time, reliable revocation checking?

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    Correct answer: C. Implement Online Certificate Status Protocol (OCSP) for real-time revocation validation

    The correct choice is OCSP because it provides real-time certificate revocation validation directly from the certificate authority. CRLs are a tempting distractor, but remember they are published periodically and cannot guarantee the immediate status checks regulators require.

  28. Question 28 of 94A retail company suffers a breach that exposes thousands of customer credit cards. During litigation, the court asks whether the company's executives took reasonable steps to protect customer data. Which example BEST demonstrates due diligence rather than due care?

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    Correct answer: C. Management commissioning a third-party risk assessment before deploying a new payment system

    The correct choice is commissioning a third-party risk assessment because due diligence is the proactive investigation of risks before taking action. Approving policies and implementing encryption demonstrate due care, which represents the ongoing operational actions taken to maintain security.

  29. Question 29 of 94You are the CISO of a government contractor managing classified data. During an internal audit, you discover that a senior engineer has bypassed security controls to finish a project ahead of schedule, saving the company millions in penalties. Management praises the engineer's initiative and tells you to "let it slide." What is the BEST course of action?

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    Correct answer: C. Report the violation to appropriate authorities or internal compliance even if it could harm the company's reputation

    The ISC squared code of ethics mandates protecting society and the public before employer interests. Reporting serious violations through proper channels is required, regardless of financial justifications. For the exam, always eliminate options that prioritize reputation, cost, or convenience over legal and ethical duties.

  30. Question 30 of 94During a penetration test, the tester successfully gains access to a domain controller using a service account with excessive privileges. The CISO wants to prevent similar findings in the future. What should the security manager do first to address this issue?

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    Correct answer: B. Conduct a root cause analysis to determine why privilege escalation was possible

    Conducting a root cause analysis is the correct first step because a security manager must strategically understand why a vulnerability was exploited before deploying fixes. Implementing privileged access management tools immediately is a tactical reaction that might miss broader systemic issues.

  31. Question 31 of 94A global financial institution detects abnormal outbound traffic from a workstation that belongs to the CFO's executive assistant. Initial logs show large encrypted data transfers to an external IP at 2:00 a.m. The SOC suspects a data exfiltration in progress. What should the incident response manager do first?

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    Correct answer: A. Disconnect the affected workstation from the network immediately

    Disconnecting the affected workstation is correct because incident response priorities dictate stopping an active data exfiltration immediately to prevent further loss. While capturing a forensic image is important, it happens after containment to prevent ongoing unauthorized data leakage.

  32. Question 32 of 94A software development company recently transitioned to DevOps and Continuous Integration/Continuous Deployment (CI/CD). During a review, the security manager discovers that developers have direct administrative access to production servers for troubleshooting purposes. What should the security manager do next?

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    Correct answer: B. Implement separation of duties and restrict production access via a controlled change management process

    Implementing separation of duties and enforcing a change management process is correct because it addresses the underlying process gap rather than just punishing users. Revoking access immediately is a reactive technical fix that fails to establish the necessary governance for production environments.

  33. Question 33 of 94A multinational company plans to migrate its critical databases to a public cloud provider. During the planning phase, the legal team raises concerns about the varying privacy regulations in different countries where the company operates. What should the security manager do first to address this concern?

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    Correct answer: A. Review data residency and privacy requirements for each jurisdiction involved

    Reviewing data residency and privacy requirements for each jurisdiction is correct because a security manager must perform due diligence to understand legal constraints before designing cloud architecture. Technical controls like encryption are implemented only after confirming these regulatory obligations.

  34. Question 34 of 94A pharmaceutical company's R&D division needs to transfer proprietary research data to a partner organization overseas for joint development. Both firms have signed NDAs, and a secure VPN tunnel is already established. The CISO is asked how to best ensure the data remains confidential and cannot be altered in transit. What is the best action to take?

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    Correct answer: A. Require digital signatures and encryption at the file level before transfer

    Requiring digital signatures and file-level encryption is correct because applying controls directly to the data ensures end-to-end confidentiality and integrity outside the secure tunnel. Relying solely on a VPN provides transport security but leaves data exposed once it reaches the endpoint.

  35. Question 35 of 94A large hospital network is implementing a new electronic health records (EHR) system. During the rollout, the CIO wants to ensure that the system maintains both data integrity and availability in the event of a hardware failure or power loss. Which of the following is the best solution to achieve this goal?

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    Correct answer: A. Implement RAID with regular database replication across multiple sites

    Implementing RAID with regular database replication is correct because combining hardware redundancy with cross-site replication ensures continuous availability and protects data integrity. Nightly backups or uninterruptible power supplies alone cannot guarantee seamless operational continuity during hardware failures.

  36. Question 36 of 94A multinational company wants to ensure that executives can send signed and encrypted emails between offices in the U.S. and Europe. They want to ensure confidentiality, integrity, and non-repudiation while using existing corporate email infrastructure (Outlook and Exchange). Which protocol is best suited for this requirement?

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    Correct answer: B. S/MIME

    S/MIME integrates directly into enterprise email systems like Exchange to provide end-to-end encryption and digital signatures. While TLS secures the transmission channel, it does not protect the data at rest or provide user-level non-repudiation.

  37. Question 37 of 94Your organization is evaluating a cloud vendor that will process financial transaction data subject to Sarbanes–Oxley (SOX) controls. Senior management asks which third-party assurance report best demonstrates that the vendor's internal controls over security, availability, and processing integrity are designed and operating effectively. Which report should you request?

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    Correct answer: C. SOC 2 Type II

    A SOC 2 Type II report verifies the operational effectiveness of security controls over time. For vendor risk assessments, remember that SOC 1 focuses strictly on financial reporting, whereas SOC 2 focuses directly on security and availability.

  38. Question 38 of 94A multinational healthcare organization headquartered in Toronto collects personal medical information from patients across Canada. The Chief Privacy Officer must ensure compliance with Canadian federal privacy legislation that governs how private-sector organizations handle personal data and requires obtaining consent before collection, use, or disclosure. Which law best applies in this case?

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    Correct answer: A. Personal Information Protection and Electronic Documents Act (PIPEDA)

    PIPEDA is the Canadian federal privacy law regulating how private-sector organizations handle personal data. Match the jurisdiction to the scenario, recognizing that HIPAA applies to the United States and FIPPA typically governs Canadian public sector entities.

  39. Question 39 of 94A European retailer hires a third-party marketing analytics company to process customer purchase data in order to identify buying trends. The retailer determines why and how the customer data will be analyzed, while the marketing company only processes the data according to the retailer's instructions. Under the GDPR, how are these two entities classified?

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    Correct answer: B. The retailer is the Data Controller; the marketing company is the Data Processor

    Under the GDPR, the data controller determines why and how personal data is processed, while the processor acts on their behalf. Focus on who holds ultimate decision authority over the data, as that entity retains legal compliance accountability.

  40. Question 40 of 94A company is designing a secure file-transfer system between two business partners. Each transfer must ensure confidentiality and authentication, but performance and scalability are critical because thousands of files are exchanged daily. Which combination of encryption methods best meets these needs?

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    Correct answer: B. Use symmetric encryption for bulk data and asymmetric encryption for key exchange

    Hybrid encryption uses fast symmetric algorithms for bulk data and asymmetric algorithms to securely exchange those keys. Relying purely on asymmetric encryption for large volumes of data would create severe performance bottlenecks and limit scalability.

  41. Question 41 of 94Your company's mobile development team is implementing secure communication for a new mobile banking app. The app will run on limited-resource devices and must perform key exchange and digital signing efficiently, while maintaining equivalent strength to RSA-2048 encryption. Which asymmetric algorithm is the best choice?

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    Correct answer: D. ECC (Elliptic Curve Cryptography)

    Elliptic Curve Cryptography provides strong security with much smaller key sizes, making it highly efficient for mobile devices. RSA requires significantly larger keys to match this strength, demanding more computational overhead and draining battery life.

  42. Question 42 of 94An organization's CISO is developing a new enterprise security awareness program. The plan requires funding, staffing, and executive approval to be successful. Who holds the ultimate responsibility to ensure that adequate resources are provided for this program?

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    Correct answer: C. Senior Management / Executive Management

    Senior management holds ultimate accountability for organizational security and must allocate the necessary funding and staffing. Responsibility for daily operations can be delegated downward to a security manager, but final accountability remains with executives.

  43. Question 43 of 94During the final stage of an application's pre-production testing, the QA team wants to identify runtime vulnerabilities such as SQL injection, cross-site scripting, and authentication flaws, but does not have access to the source code. Which testing approach is most appropriate?

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    Correct answer: B. Dynamic Application Security Testing (DAST)

    Dynamic Application Security Testing evaluates a running application from the outside without requiring underlying source code access. Conversely, Static Application Security Testing analyzes source code internally during early development phases rather than evaluating live runtime behavior.

  44. Question 44 of 94A web application developer is tasked with improving the security of the front end of an online banking portal. Which of the following controls best represent front-end security measures?

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    Correct answer: A. Input validation and client-side encryption

    Input validation and client-side encryption operate directly within the user interface layer to protect data before it reaches backend servers. Database parameterization and role-based access control are backend controls that secure server-side data rather than client-facing interfaces.

  45. Question 45 of 94A multinational enterprise is transitioning from a traditional perimeter-based security model to Zero Trust Architecture (ZTA). Which of the following technologies or principles best embody the Zero Trust approach?

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    Correct answer: B. Implementing continuous authentication and micro-segmentation

    Implementing continuous authentication and micro-segmentation directly enforces the core Zero Trust philosophy of never trusting implicitly. Traditional security approaches rely on strong perimeter firewalls or VPN tunnels, which incorrectly assume internal network traffic is completely safe.

  46. Question 46 of 94During an incident response, analysts discover that a critical application server was compromised by a zero-day exploit. The attacker exfiltrated sensitive design documents. Management asks you, as the CISO, what the FIRST priority should be.

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    Correct answer: A. Contain the attack by disconnecting the server from the network

    The first priority is containment to stop ongoing data exfiltration and limit further business impact. While preserving volatile evidence is critical, you must stop the bleeding first; letting attackers continue stealing data just to gather perfect logs is unacceptable.

  47. Question 47 of 94A global bank is adopting a Zero Trust Architecture (ZTA). The CISO stresses that the design must prevent lateral movement inside the network, continuously enforce least privilege access, and satisfy regulatory auditors who require visibility into who accessed what, when, and from where. Which control is the BEST fit for meeting these Zero Trust requirements?

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    Correct answer: F. Implement continuous identity verification and microsegmentation with policy-based access enforcement

    Continuous identity verification and microsegmentation with policy-based enforcement successfully cover all three required Zero Trust outcomes. Single sign-on or multifactor authentication only validates the initial login and fails to stop lateral movement once a device connects.

  48. Question 48 of 94A multinational bank must test its Disaster Recovery Plan (DRP) for a mission-critical payment system. Executives insist the test must demonstrate real operational readiness, process live transactions in a controlled manner, and minimize risk of disrupting production services. Which testing method is the BEST fit?

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    Correct answer: G. Parallel test, activate the alternate site and process live transactions while production continues

    A parallel test activates the alternate site and processes live transactions while production continues, balancing operational readiness with minimal disruption. Full interruption tests carry unacceptable risk, while simulations lack the real transaction processing required by executives.

  49. Question 49 of 94Your company is evaluating a cloud provider to host financial systems. During due diligence, auditors ask which third-party assurance report would be BEST for validating that the provider's controls protect confidentiality, integrity, and availability of customer data.

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    Correct answer: A. SOC 2

    A SOC 2 report is the correct choice because it assesses service providers against the Trust Services Criteria, which include security, availability, and confidentiality. Do not let the word financial mislead you into choosing SOC 1, which focuses strictly on financial reporting controls.

  50. Question 50 of 94During a GDPR compliance review, executives ask who in the organization is ultimately responsible for classifying and determining protection requirements for sensitive customer data.

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    Correct answer: A. Data Owner, defines classification, determines sensitivity, and sets requirements for use

    The Data Owner holds ultimate responsibility for classifying information and setting protection requirements, aligning with the Data Controller role under GDPR. Custodians handle the day-to-day technical enforcement, but they do not dictate the classification rules.

  51. Question 51 of 94Your multinational firm discovers that a regional office is storing EU citizens' personal data without proper GDPR consent records. Local management argues that deleting the data will disrupt contracts with U.S. clients who depend on it for service delivery. What is the BEST course of action?

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    Correct answer: B. Temporarily suspend use of the data and notify Legal for GDPR compliance assessment

    Temporarily suspending data use and notifying Legal is the correct answer because regulatory compliance always supersedes operational convenience. For the exam, remember that technical controls like encryption do not cure a missing legal basis for processing data.

  52. Question 52 of 94A company is designing a new data center. The security architect is applying Crime Prevention Through Environmental Design (CPTED) principles to reduce physical threats. Which sequence of security measures best represents the correct order of implementation under CPTED principles?

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    Correct answer: B. Deter: Detect: Delay: Respond

    Proactive physical security dictates deterring an attacker first, then detecting them if they proceed, and delaying their progress. Responding is always the final step, as you cannot neutralize a physical threat until after it has been identified.

  53. Question 53 of 94A financial firm conducts a Business Impact Analysis (BIA) to prepare for disasters. During the review, the continuity planner must determine how much downtime each system can tolerate before the business suffers unacceptable loss. Which statement best describes the relationship between MTD and recovery cost?

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    Correct answer: C. The shorter the MTD, the higher the recovery cost

    A short Maximum Tolerable Downtime requires faster recovery methods, which significantly increases overall costs. For the exam, remember that zero downtime requires expensive redundant hot sites, whereas longer tolerance windows allow cheaper cold site alternatives.

  54. Question 54 of 94A company's CISO wants to track security vulnerability trends across the industry to understand which types of weaknesses are becoming more common and how severe they are. Which resource provides the best information for this purpose?

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    Correct answer: B. Common Vulnerability Scoring System (CVSS)

    The Common Vulnerability Scoring System provides standardized numerical severity scores to help organizations analyze trends and prioritize remediation efforts. However, the Common Vulnerabilities and Exposures list is actually required to identify which specific system weaknesses are emerging globally.

  55. Question 55 of 94During a recent audit, the SOC manager notices that the organization's Security Information and Event Management (SIEM) platform has not generated any alerts for over two weeks, even though minor security incidents were reported manually. What should the security manager conclude first?

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    Correct answer: A. The SIEM's correlation rules or data feeds may have failed

    A sudden lack of alerts from an active SIEM usually points to a failure in data ingestion or correlation rules. Silence indicates a potential loss of visibility, not improved security. If logs are not feeding the engine, the tool cannot detect threats.

  56. Question 56 of 94A company's information security program has been approved, but the CISO reports that several initiatives cannot move forward due to lack of budget and staff. Who is ultimately accountable for ensuring that adequate resources are made available to support the organization's security objectives?

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    Correct answer: B. Chief Executive Officer (CEO)

    Senior management, such as the CEO, is ultimately accountable for allocating adequate resources to security initiatives. While the CISO handles implementation, executive leadership must provide the budget and staff to execute the program.

  57. Question 57 of 94Your organization's public website is hosted in a DMZ, but a recent penetration test shows attackers can pivot from the web server to the internal network via misconfigured routes. Executives ask how to prevent similar attacks while maintaining public accessibility to the website.

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    Correct answer: B. Implement a reverse proxy to isolate backend systems from direct Internet access

    A reverse proxy isolates backend systems by terminating external connections and forwarding only validated requests. This prevents attackers from pivoting. Deploying an IDS only detects intrusions, whereas a proxy actively prevents network traversal.

  58. Question 58 of 94Your SOC identifies malware spreading on a file server. The malware has not yet caused major disruption, but analysts confirm it is actively replicating across shared drives. Executives demand to know what should be done NEXT.

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    Correct answer: A. Contain the incident by isolating the infected server from the network

    The immediate next step is to contain the incident by isolating the infected server, which stops the malware from spreading further. Eradication and recovery happen later; you must always stop the bleeding before performing actual cleanup.

  59. Question 59 of 94Your company is considering launching a mobile banking app. Risk analysis shows potential fraud losses of $25 million annually, insurance coverage capped at $5 million, and strong fraud controls that can reduce losses to $3 million. However, canceling the project would forfeit $100 million in projected revenue. As the CISO, which risk response is the BEST for the organization?

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    Correct answer: H. Mitigate, implement strong fraud detection controls to reduce the annual loss

    Mitigation is the best choice because implementing strong fraud controls reduces the annual loss expectancy to a tolerable three million dollars, safeguarding the massive revenue projection. Transferring the risk fails because the insurance cap leaves a massive exposure.

  60. Question 60 of 94A bank performs a quantitative risk analysis for a potential ransomware event affecting its trading systems. Findings: Asset value (AV): $20 million; Exposure factor (EF): 25%; Annual rate of occurrence (ARO): 0.5 (once every 2 years). Proposed control: Offline backups costing $400,000/year, which would reduce exposure to 5%. Executives demand to know if the control is financially justified and what action you should recommend.

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    Correct answer: G. Implement the control, it is cost-effective and reduces impact to an acceptable level

    Implementing the control is justified because the two million dollar annual loss reduction far exceeds the four hundred thousand dollar cost. A positive return on investment dictates action. Do not delay a clear quantitative decision by requesting unnecessary qualitative rankings.

  61. Question 61 of 94A financial institution uses digital signatures for transactions. An internal audit finds expired and duplicated certificates across multiple business units. Executives want "one system" to prevent recurrence, ensure compliance, and simplify renewals. Which solution BEST meets these needs?

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    Correct answer: C. Deploy a centralized Public Key Infrastructure (PKI) with automated certificate issuance and revocation

    A centralized Public Key Infrastructure with automated lifecycle management is correct because it directly resolves certificate sprawl and enforces governance across the enterprise. Manual reviews or relying solely on hardware security modules fail to provide comprehensive lifecycle automation.

  62. Question 62 of 94Your SOC detects malware spreading across several internal file servers. The servers are critical to daily operations, but analysts confirm the malware is still actively replicating and beaconing out to an external IP. Executives demand to know what the team should do NEXT.

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    Correct answer: D. Contain the infection by isolating the impacted servers from the network

    Isolating the impacted servers is the correct next step because containment halts active spread and limits further damage before eradication begins. Jumping straight to eradication or recovery risks missing infection vectors or reintroducing the malware.

  63. Question 63 of 94A multinational healthcare organization is designing an access control system for its cloud-based research environment. The system must restrict access based on data sensitivity and clearance level, prevent users from changing permissions on data they do not own, and provide the highest assurance of data confidentiality. Which access control model is the BEST fit?

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    Correct answer: G. Mandatory Access Control (MAC)

    Mandatory Access Control is correct because it enforces strict, centrally defined rules based on clearance levels and data classification to provide the highest confidentiality assurance. Unlike discretionary access control, users cannot change permissions on files they do not own.

  64. Question 64 of 94Your company is expanding operations into the European Union and will process personal data of EU citizens. During project review, the CIO asks what must be addressed FIRST to reduce the organization's risk of penalties.

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    Correct answer: B. Encrypt all EU personal data at rest and in transit using industry-standard algorithms

    Addressing legal and regulatory requirements like establishing a data processing agreement is the critical first step to avoid massive fines. Technical controls like encryption and DLP are important safeguards, but they do not fulfill the structural compliance mandates demanded by regulators.

  65. Question 65 of 94During an investigation, your SOC discovers that attackers poisoned your company's DNS cache, redirecting users to a malicious site that stole credentials. At which OSI layer does DNS cache poisoning primarily occur?

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    Correct answer: E. Layer 7

    DNS cache poisoning primarily occurs at Layer 7 because it manipulates the application service logic into returning malicious IP mappings. Even though DNS relies on lower layer transport protocols, the actual exploitation targets the application layer.

  66. Question 66 of 94During a post-incident review, investigators discover that an employee's compromised workstation was used to exfiltrate sensitive engineering data to an external cloud service. The SOC already had inbound firewall rules and an IDS at the perimeter. Executives ask what additional control would have MOST likely prevented the data exfiltration without disrupting normal Internet use.

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    Correct answer: A. Deploy egress filtering to restrict outbound connections and detect abnormal data transfers

    The correct choice is deploying egress filtering because it inspects and restricts outbound traffic to prevent unauthorized data transfers. Adding another intrusion detection system is a detective control, whereas egress filtering acts preventively against outbound data loss.

  67. Question 67 of 94Your organization is retiring thousands of solid-state drives (SSDs) from a data center that previously stored regulated financial and healthcare data. Executives want the most cost-effective disposal process, while compliance officers insist on zero risk of data recovery under HIPAA and PCI DSS. Which action BEST satisfies both regulatory and security requirements?

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    Correct answer: E. Physically shred or incinerate the SSDs through a certified destruction vendor with a certificate of destruction

    Physical destruction via a certified vendor guarantees data cannot be recovered and provides legally defensible documentation. Software methods fail on solid state drives due to wear leveling. When zero recovery is required, always choose physical destruction over wiping or degaussing for flash media.

  68. Question 68 of 94Your organization conducts quarterly vulnerability scans and an annual penetration test to comply with PCI DSS. The latest penetration test exploited a critical flaw in the e-commerce gateway, exposing real customer data. The security team immediately patched the flaw and confirmed the fix. A week later, the auditors request formal evidence that management took appropriate risk treatment actions. What is the BEST next step for you as the CISO?

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    Correct answer: E. Conduct a targeted re-test by an independent assessor and document the results for audit evidence

    Auditors require formal, verifiable proof that a vulnerability is closed, which an independent retest provides. Updating policies improves future processes but does not satisfy immediate compliance evidence needs. When regulators ask for proof, prioritize actionable validation and documentation over strategic planning.

  69. Question 69 of 94Your organization is migrating its analytics platform to a cloud provider that stores healthcare data regulated under HIPAA. The new system must enforce access based on user attributes such as job title, project, location, and clearance level, allow dynamic policy updates without recoding applications, and support auditable enforcement so the company can prove compliance to regulators. As CISO, which access-control model BEST satisfies both the technical and regulatory requirements?

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    Correct answer: H. Attribute-Based Access Control (ABAC)

    Attribute based access control evaluates user, object, and environment attributes dynamically at runtime, perfectly satisfying context aware requirements. Role based access control lacks this dynamic flexibility and leads to role explosion. Match the model to scenarios requiring fine grained, auditable control.

  70. Question 70 of 94Your organization runs multiple virtual machines (VMs) for regulated workloads (finance, healthcare, and R&D) on the same hypervisor cluster managed by a public-cloud provider. A recent risk assessment flagged the possibility of cross-VM data leakage via shared memory or cache side-channel attacks. The cloud provider refuses to disclose detailed hypervisor logs, citing multi-tenant security policy. As the CISO, what is the BEST risk-mitigation strategy?

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    Correct answer: E. Segregate high-sensitivity workloads onto dedicated physical hosts under a private-cloud or single-tenant model

    Moving high sensitivity workloads to dedicated physical hosts eliminates the underlying virtualization isolation risk. You cannot secure or monitor a public cloud hypervisor you do not control. In shared environments, encryption and intrusion detection fail to mitigate hardware side channel attacks.

  71. Question 71 of 94You are the CISO of a multinational healthcare organization. During a system upgrade, engineers discover a misconfiguration that has quietly exposed unencrypted patient data to an internal analytics vendor for the past six months. Fixing it will require downtime that could delay critical patient services. The Chief Operations Officer (COO) instructs you not to disclose the exposure until the next quarterly report, citing potential "reputational damage" and "no proven misuse of data." What is the BEST course of action?

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    Correct answer: E. Immediately report the exposure to regulators as required under HIPAA and initiate breach-response procedures

    Regulations mandate immediate reporting of unauthorized protected health information disclosure upon discovery, regardless of proven misuse. Delaying notification violates legal and ethical duties. For the exam, always prioritize strict compliance timelines over executive concerns regarding reputational damage or operational downtime.

  72. Question 72 of 94Your enterprise security stack includes a third-party network-monitoring tool whose code-signing certificate has just been revoked after the vendor admitted a supply-chain compromise inserted malware into updates. Thousands of your servers have the agent installed, and regulators have issued an industry-wide advisory. Executives are panicked about downtime and reputational risk; operations insists on keeping monitoring active "until we can replace it." As the CISO, what is the BEST immediate action?

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    Correct answer: C. Revoke all trust relationships and remove the compromised software, prioritizing containment over monitoring continuity

    A compromised software update mechanism is an active threat requiring immediate containment by removing the software and revoking trust. Waiting for vendor guidance leaves malicious code running, which constitutes negligence. Always prioritize cutting the attack path over maintaining operational uptime.

  73. Question 73 of 94Your organization recently suffered several minor security incidents despite good patching, awareness training, and antivirus coverage. The CEO wants to ensure "security is built into business decisions" rather than being an IT afterthought. What should the CISO do NEXT to most effectively address this concern?

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    Correct answer: D. Establish a formal information security governance framework tied to enterprise risk management

    Establishing a formal governance framework aligns security with enterprise risk and integrates it into strategic business decisions. Tactical controls like patching only address specific vulnerabilities. When executives demand strategic alignment, always select the governance option.

  74. Question 74 of 94During a major data breach, your SOC has contained the incident and forensics is underway. Executives demand system restoration to resume operations immediately, while Legal warns that the investigation must preserve chain of custody for possible litigation. What is the BEST next step for you as the CISO?

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    Correct answer: D. Maintain containment and coordinate with Legal to ensure evidence integrity before initiating recovery

    Maintaining containment and coordinating with legal ensures evidence integrity before recovery begins. Rushing system restoration risks contaminating the chain of custody, which ruins prosecution chances. Never skip forensic and legal validation steps during incident response.

  75. Question 75 of 94Your company is integrating with a partner portal so employees can log in using their corporate Active Directory accounts. The partner requires federated authentication using XML-based assertions. Which technology is the BEST fit?

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    Correct answer: H. SAML

    Security Assertion Markup Language is the best fit because it supports federated identity and uses XML-based tokens for passing authentication data. The requirement for XML assertions eliminates OpenID Connect, which relies on JSON.

  76. Question 76 of 94A U.S. healthcare company processes patient data in Europe using a cloud provider. During a GDPR compliance review, executives ask who is legally responsible for deciding how and why the patient data is processed.

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    Correct answer: A. Data Controller

    The correct choice is Data Controller because this role determines the purposes and means of processing personal data. Data processors act only on instructions from the controller, while custodians handle the technical implementation of internal security policies.

  77. Question 77 of 94A large retail company processes credit card payments in the U.S. and is subject to multiple regulations. During an internal audit, management asks which compliance framework is specifically designed to ensure the security of payment cardholder data.

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    Correct answer: C. PCI DSS

    The correct choice is PCI DSS because it explicitly regulates the security of payment cardholder data. Other distractors like HIPAA or GLBA govern healthcare records or financial institutions, so match the specific data type to its corresponding regulatory framework.

  78. Question 78 of 94During a recent security audit, management found that employees were occasionally using unauthorized USB drives on company systems, posing a data leakage risk. The CISO wants to reduce the likelihood of data exfiltration but also identify if policy violations still occur. Which control best aligns with the business goal?

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    Correct answer: B. Install Data Loss Prevention (DLP) software that logs and alerts on USB transfers

    Data Loss Prevention systems provide the necessary visibility by logging and alerting on unauthorized USB transfers without entirely blocking functionality. While completely disabling USB ports prevents leakage, it lacks monitoring capabilities and usually disrupts legitimate business operations.

  79. Question 79 of 94An organization recently suffered a security breach where an administrator's credentials were stolen and used to modify production systems. To reduce the impact of future incidents, the CISO decides to implement a Privileged Access Management (PAM) solution. What is the primary benefit of implementing PAM in this scenario?

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    Correct answer: E. It automatically rotates, manages, and audits privileged credentials

    A Privileged Access Management solution automatically rotates, manages, and audits administrative credentials to prevent unauthorized system modifications. While blocking external network access is helpful, it does not provide the core credential governance, strict accountability, and auditing capabilities required.

  80. Question 80 of 94A water-treatment facility operates multiple Industrial Control Systems (ICS) that manage pumps, valves, and chemical dosing. When assessing the security posture of these systems, the security architect emphasizes human safety and system reliability over confidentiality. Which principle should take highest priority in securing ICS environments?

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    Correct answer: D. Availability and Safety

    Availability and safety represent the highest priorities in Industrial Control Systems because operational failure directly risks human life and physical infrastructure. Unlike corporate information technology environments, industrial systems prioritize continuous machinery operation over strict data confidentiality.

  81. Question 81 of 94An organization hires an independent consultant to perform penetration testing on its network after obtaining written authorization from the CIO. The consultant's job is to identify exploitable weaknesses without disrupting operations and to report findings to improve defenses. Which term best describes this individual's role?

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    Correct answer: B. White Hat Hacker

    A white hat hacker operates with explicit authorization to identify system weaknesses and improve organizational security defenses. The key distinguishing factors are proper permission and protective intent, whereas unauthorized attackers lack approval and typically exploit systems maliciously.

  82. Question 82 of 94A regional bank's data center experiences an outage due to a power failure. During the Business Impact Analysis (BIA), management defines the following: MTD (Maximum Tolerable Downtime): 24 hours, RTO (Recovery Time Objective): 8 hours, RPO (Recovery Point Objective): 30 minutes. Based on these metrics, what is the correct interpretation of the bank's recovery expectations?

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    Correct answer: F. Systems must be restored within 8 hours and data loss must not exceed 30 minutes

    Systems must be recovered within the eight-hour recovery time objective, and data loss cannot exceed thirty minutes. The maximum tolerable downtime represents the absolute deadline before severe business impact.

  83. Question 83 of 94A healthcare organization is modernizing its internal network using a Zero Trust architecture. The CISO wants to limit the potential blast radius of lateral movement if an attacker compromises one medical device or workstation. Which design decision best supports this goal?

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    Correct answer: C. Segment the network into small logical zones with identity-based access control

    Dividing the network into small logical zones with identity-based access controls directly limits lateral movement. In a Zero Trust architecture, segmenting assets restricts an attacker's ability to pivot after compromising a single device.

  84. Question 84 of 94A secure research lab applies multiple CPTED (Crime Prevention Through Environmental Design) principles. Security architects have already installed fencing, lighting, and CCTV cameras. They now want to ensure that if an intruder bypasses these measures, it will take additional time before reaching critical areas, long enough for security guards to respond. Which control best represents this "delay" layer in CPTED?

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    Correct answer: F. Mantraps and reinforced internal doors

    Physical barriers like mantraps and reinforced doors delay intruders, providing critical time for guards to respond. This enforces the detect, delay, and respond sequence. Motion lights only detect, while patrols respond.

  85. Question 85 of 94During an internal security review, it's discovered that several departments are classifying customer data inconsistently — some label it "Internal Use," others as "Confidential." Senior management wants a unified, legally defensible process that defines who decides sensitivity levels and ensures consistent labeling across the organization. What should you do FIRST as the CISO?

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    Correct answer: D. Have data owners define and approve classification levels based on business and legal requirements

    Data owners must define and approve classification levels because they understand the business impact and legal requirements. Custodians handle technical enforcement later. If you enforce inconsistent labels first, you fail to solve the governance gap.

  86. Question 86 of 94During a security audit, the data-center manager asks which type of portable fire extinguisher should be mounted near server racks and UPS equipment. The system houses high-voltage electrical components, and water or conductive agents are prohibited. Which extinguisher class is the MOST appropriate?

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    Correct answer: D. Class C

    Class C extinguishers use non-conductive agents like carbon dioxide for energized electrical fires. Using water or conductive chemicals risks electrocution and severe equipment damage. Always prioritize human safety around high-voltage server racks.

  87. Question 87 of 94During an internal security assessment, an attacker captures network traffic between a workstation and a domain controller that uses the Kerberos authentication protocol. They attempt to reuse a previously captured Ticket-Granting Ticket (TGT) to gain access to resources without re-authenticating. Which Kerberos control most effectively prevents this type of replay attack?

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    Correct answer: B. Time synchronization between clients and the Key Distribution Center (KDC)

    Kerberos relies on strict time synchronization between clients and the KDC to embed timestamps in tickets. If an attacker replays an old ticket, the server rejects the expired timestamp. Asymmetric encryption does not inherently stop replay attacks.

  88. Question 88 of 94A global retailer stores credit card data from online transactions for refund processing. To reduce PCI DSS scope and lower breach impact, the CISO wants to ensure that the organization does not store or transmit actual card numbers after authorization, but can still process refunds securely. Which approach best meets these goals?

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    Correct answer: C. Replace stored card numbers with tokens generated by a PCI-compliant payment processor

    Tokenization replaces sensitive card numbers with non-sensitive tokens, drastically reducing compliance scope. The payment processor maps tokens back to primary account numbers. Unlike encryption, tokenization removes sensitive data from internal systems.

  89. Question 89 of 94Your company is negotiating with a cloud provider to host its new patient record management system. During due diligence, your compliance team warns of GDPR and HIPAA obligations. Management asks: What is the MOST critical issue to resolve BEFORE signing the contract?

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    Correct answer: G. Ensure the data processing agreement (DPA) addresses GDPR/HIPAA responsibilities

    Ensuring the Data Processing Agreement addresses all regulatory responsibilities is the most critical step to legally bind the vendor to compliance. A SOC 2 report shows security posture, but without a legally binding DPA, your organization remains solely liable for data breaches.

  90. Question 90 of 94During a risk workshop, a security analyst states, "If our customer database is not encrypted, an attacker could steal sensitive data through SQL injection." As the CISO, how should you correctly classify the analyst's statement?

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    Correct answer: D. Vulnerability

    The analyst's statement accurately describes a vulnerability, which is an inherent weakness or lack of a preventive safeguard like encryption. The threat is the malicious actor utilizing the SQL injection technique, while the risk is the potential business impact of the stolen data.

  91. Question 91 of 94Your development team is adopting a structured threat modeling methodology for a new e-commerce platform. The CISO wants a method that: Is risk-centric, focused on business impact. Uses attacker perspectives and abuse cases. Prioritizes threats based on probability and impact. Which threat modeling approach is the BEST fit?

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    Correct answer: F. PASTA

    The correct choice is PASTA because it is a risk-centric methodology that aligns technical threats with business impact. STRIDE is a common distractor; remember it categorizes technical threat types rather than prioritizing based on business risk.

  92. Question 92 of 94Your multinational bank plans to outsource digital signing of high-value wire transfer instructions to a third-party FinTech provider. The business requires: Nonrepudiation of the sender (regulators must trust the signature in court). Cross-border legal enforceability (U.S. and EU regulators both accept it). Minimized supply chain risk if the vendor's system is compromised. Auditability to prove controls were followed during each transaction. Which is the BEST approach for the bank to take?

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    Correct answer: G. Mandate use of a PKI with certificates issued by globally trusted Certificate Authorities, with all key management retained by the bank

    The correct choice works because mandating PKI with internally managed keys ensures legal nonrepudiation and limits supply chain risk. Relying on vendor compliance reports or blockchain fails to provide the recognized legal standing and strict key control required by regulators.

  93. Question 93 of 94A global insurance company is revising its Business Continuity Plan (BCP) after regulators warned that recovery capabilities must be demonstrated in the next audit. Key findings: Critical claims processing system has RTO of 4 hours, MTD of 24 hours. Executives are reluctant to spend heavily on redundant infrastructure. Regulators have authority to impose fines if minimum recovery objectives are not met. IT proposes simulation tests instead of live failover to save money. As the CISO, what is the BEST next action?

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    Correct answer: H. Recommend a parallel test of the DR site to validate RTO compliance without full interruption of production

    The correct choice is recommending a parallel test because it validates recovery capabilities without disrupting production operations. Simulation tests are merely tabletop exercises and will not satisfy regulatory demands for actual demonstrated recovery capability.

  94. Question 94 of 94Your enterprise wants employees to log in once with their corporate Active Directory credentials and then seamlessly access multiple third-party SaaS apps (like Salesforce, ServiceNow, and Workday) without re-entering passwords. The solution must: Provide federated authentication. Use XML-based assertions. Support single sign-on (SSO) across organizational boundaries. Which technology is the BEST fit?

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    Correct answer: H. SAML

    The correct choice is SAML because it uses XML-based assertions to provide federated single sign-on across organizational boundaries. OpenID Connect is a tempting distractor, but remember it relies on JSON web tokens instead of XML for modern authentication.

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