Free CISSP Quick Practice Test 2026 — 10 Mixed-Domain Certified Information Systems Security Professional Questions

Take a fast, free CISSP practice test with 10 mixed-domain questions covering all 8 ISC2 CISSP domains. Perfect for a quick readiness check before exam day.

What's Covered (All 8 CISSP Domains)

10 Free CISSP Practice Questions with Answers

Sample Question 1 — Asset Security

Your organization is migrating sensitive customer data to a cloud provider. Which approach best mitigates the risk of data breaches during this transition, aligning with best practices and regulatory requirements like GDPR?

  1. A. Prioritize cost optimization by selecting the cheapest cloud provider, focusing on security features provided by the cloud vendor.
  2. B. Implement a comprehensive data loss prevention (DLP) solution post-migration, relying on the cloud provider's security controls.
  3. C. Conduct a thorough risk assessment, develop a detailed data migration plan with robust security controls (encryption, access controls, etc.), and continuously monitor for threats throughout the process. (Correct answer)
  4. D. Migrate all data at once for efficiency, addressing security concerns after the migration is complete.

Correct answer: C

Explanation: Option C is the most comprehensive and risk-averse approach. It aligns with a risk-based approach by first assessing the risks, then developing a mitigation strategy that includes various security controls before, during, and after migration. Options A and B are insufficient as they neglect thorough risk assessment and proactive controls. Option D is highly risky by delaying critical security implementation.

Sample Question 2 — Asset Security

A recent audit revealed vulnerabilities in your organization's physical security, specifically around access control to server rooms. Which strategic response best addresses this risk while considering business needs and cost-effectiveness?

  1. A. Immediately replace all access control systems with the most advanced biometric technology available.
  2. B. Implement a multi-factor authentication system for all server room access, combined with regular security audits and staff training. (Correct answer)
  3. C. Increase security guard patrols around the clock, relying on human surveillance as the primary control.
  4. D. Ignore the audit findings as the likelihood of a physical breach is low compared to cyber threats.

Correct answer: B

Explanation: Option B provides a balanced approach by implementing a strong technical control (MFA) alongside effective procedural controls (audits and training). Option A is overly expensive and possibly unnecessary; C is less effective than technological controls; D is negligent and unacceptable.

Sample Question 3 — Communication and Network Security

Your organization is migrating to a cloud-based infrastructure. A crucial element is securing communication between on-premises systems and cloud resources. Which approach best balances security and operational efficiency?

  1. A. Implement a site-to-site VPN with strong authentication and encryption. (Correct answer)
  2. B. Rely solely on the cloud provider's security features and controls.
  3. C. Establish a direct network connection between the on-premises network and the cloud, bypassing VPNs for speed.
  4. D. Use a hybrid approach with VPN for sensitive data and direct connections for less critical traffic, without proper security controls.

Correct answer: A

Explanation: A site-to-site VPN provides a secure, encrypted tunnel for communication between networks, mitigating risks associated with public internet transit. Option B is risky, relying entirely on a third party. Option C is insecure, exposing data to potential attacks. Option D is partially correct regarding hybrid approaches but lacks the crucial element of applying appropriate security controls to all communication channels.

Sample Question 4 — Communication and Network Security

Your organization experiences a significant increase in DDoS attacks. Which strategic response best mitigates future risks and aligns with a layered security approach?

  1. A. Invest solely in advanced firewall technology.
  2. B. Implement a comprehensive DDoS mitigation service from a reputable provider. (Correct answer)
  3. C. Increase network bandwidth to absorb the attacks.
  4. D. Rely on internal IT staff to develop a custom DDoS mitigation solution.

Correct answer: B

Explanation: A DDoS mitigation service from a reputable provider offers specialized expertise and scalable protection against various attack vectors. Option A is insufficient on its own. Option C is a short-sighted approach that doesn't address the root cause. Option D lacks the expertise and resources required for effective DDoS mitigation.

Sample Question 5 — Identity and Access Management

Your organization is undergoing a merger. Both companies utilize different IAM systems. Which approach best mitigates risk during the integration process?

  1. A. Immediately migrate all users to the larger company's IAM system.
  2. B. Maintain separate IAM systems until a comprehensive, unified system is implemented.
  3. C. Prioritize migrating critical systems and users first, implementing a phased approach.
  4. D. Employ a single sign-on (SSO) solution bridging both systems temporarily until a new system is deployed. (Correct answer)

Correct answer: D

Explanation: In the context of a merger and acquisition (M&A), the primary risk during the integration of disparate Identity and Access Management (IAM) systems is business disruption and security gaps (unauthorized access or orphaned accounts). Industry best practices and IT security frameworks (such as those found in Security+ and CISSP curricula) emphasize that Identity Federation or an SSO bridge is the most effective way to mitigate these risks. This approach allows for immediate interoperability and centralized visibility ('Day 1' access) without the high-risk, time-consuming process of a full data migration. While a phased migration (Option C) is a sound long-term strategy for consolidation, an SSO bridge (Option D) provides the safest and most effective risk mitigation during the actual integration process by providing a unified access layer while maintaining the integrity of the existing underlying systems.

Sample Question 6 — Identity and Access Management

A recent security audit revealed weak password policies across the organization. What's the BEST first step to improve security?

  1. A. Immediately enforce a complex password policy with a forced reset for all users.
  2. B. Implement multi-factor authentication (MFA) across all systems. (Correct answer)
  3. C. Conduct user awareness training on password security best practices.
  4. D. Deploy a password management tool for all users.

Correct answer: B

Explanation: The best first step is to implement multi-factor authentication (MFA), since it adds a strong second layer of defense even if passwords are weak or stolen. While stronger password policies, training, and password managers help, MFA most effectively reduces the risk of account compromise right away.

Sample Question 7 — Security Architecture and Engineering

Your organization is migrating to a cloud-based infrastructure. You need to ensure the security of sensitive data stored in the cloud. Which approach best balances security, cost, and agility?

  1. A. Implement a fully on-premises solution mirroring the cloud environment.
  2. B. Employ a hybrid cloud strategy, leveraging cloud services for non-sensitive data and on-premises for sensitive data. (Correct answer)
  3. C. Utilize a public cloud provider's native security features exclusively, without additional controls.
  4. D. Adopt a multi-cloud strategy with multiple providers to avoid vendor lock-in, ignoring any specific provider security features.

Correct answer: B

Explanation: A hybrid approach allows for leveraging the cost-effectiveness and scalability of the cloud while maintaining stricter controls for sensitive data on-premises. A is overly expensive and inflexible. C is insufficient, as relying solely on a vendor's basic security often leaves significant gaps. D introduces additional complexity and risks without addressing the core issue.

Sample Question 8 — Security Architecture and Engineering

A new mobile application requires access to corporate resources. Which security architecture principle should be prioritized to ensure least privilege and secure access?

  1. A. Allow full network access for simplicity.
  2. B. Implement a Zero Trust architecture, verifying identity and authorization for every access request. (Correct answer)
  3. C. Establish a strong password policy as the primary security measure.
  4. D. Use a Virtual Private Network (VPN) only for accessing sensitive data.

Correct answer: B

Explanation: Zero Trust is the most comprehensive approach, mitigating risks associated with implicit trust. A is fundamentally insecure. C is insufficient on its own. D doesn't address the need for secure access to all corporate resources.

Sample Question 9 — Security Assessment and Testing

Your organization is undergoing a merger with another company. As CISO, you need to assess the security posture of the acquiring company before integrating systems. What is the MOST effective initial step?

  1. A. Immediately begin penetration testing on all their systems.
  2. B. Conduct a comprehensive vulnerability scan of their network infrastructure.
  3. C. Request and review their security documentation, including risk assessments, policies, and incident response plans. (Correct answer)
  4. D. Deploy security monitoring tools on their network to observe their traffic patterns.

Correct answer: C

Explanation: Reviewing security documentation provides a high-level overview of their security posture, identifying potential risks and areas needing further investigation. Options A and D are premature and potentially disruptive, while B is incomplete without context.

Sample Question 10 — Security Assessment and Testing

A new cloud-based application is being deployed. What security assessment method would BEST ensure the application's security aligns with organizational security requirements and industry best practices before release?

  1. A. Code review by internal developers.
  2. B. Post-implementation security monitoring.
  3. C. Static and dynamic application security testing (SAST/DAST). (Correct answer)
  4. D. User acceptance testing (UAT) by a small group of users.

Correct answer: C

Explanation: SAST/DAST provide comprehensive security testing of the application's code and functionality, identifying vulnerabilities before deployment. While the other options are important, they are not sufficient to ensure application security.

About the CISSP / Certified Information Systems Security Professional Exam

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