Free CSSLP Secure Software Supply Chain Practice Test 2026 — ISC² CBK Questions

Last updated: May 2026 · Aligned with the current ISC² CSSLP CBK · 11% of the exam

This free CSSLP Secure Software Supply Chain practice test covers managing third-party risk — SBOMs, open-source component risk, vendor assessment, code signing, build pipeline security, and dependency management. Each question includes a detailed explanation with secure-SDLC and AppSec context — perfect for ISC² CSSLP exam prep.

Key Topics in CSSLP Secure Software Supply Chain

10 Free CSSLP Secure Software Supply Chain Practice Questions with Answers

Each question below includes 4 answer options, the correct answer, and a detailed explanation. These are real questions from the FlashGenius CSSLP question bank for the Secure Software Supply Chain domain (11% of the exam).

Sample Question 1 — Secure Software Supply Chain

As a software development manager for a healthcare application, you need to ensure that all third-party components used in the application comply with industry security standards. The application is deployed in a CI/CD pipeline and uses open-source libraries extensively. Which approach would best help you manage the security risks associated with these third-party components?

  1. A. Regularly update all components to their latest versions without conducting any further analysis.
  2. B. Implement a Software Bill of Materials (SBOM) to track and manage all third-party components and their versions. (Correct answer)
  3. C. Rely on the open-source community to identify and patch vulnerabilities in the components.
  4. D. Limit the use of third-party components to only those that are part of the NIST SP 800-53 framework.

Correct answer: B

Explanation: Implementing a Software Bill of Materials (SBOM) allows you to have a detailed inventory of all third-party components, which is crucial for tracking and managing the security risks associated with them. This approach aligns with secure software supply chain practices and helps ensure compliance with industry standards.

Sample Question 2 — Secure Software Supply Chain

Your organization is transitioning to a DevSecOps model to enhance the security of its software supply chain. As part of this transition, which practice should be prioritized to ensure that security is integrated throughout the software development lifecycle?

  1. A. Conducting annual security audits to identify vulnerabilities.
  2. B. Incorporating automated security testing into the continuous integration process. (Correct answer)
  3. C. Requiring developers to attend a one-time security training session.
  4. D. Outsourcing security assessments to an external vendor.

Correct answer: B

Explanation: Incorporating automated security testing into the continuous integration process ensures that security checks are consistently applied throughout the development lifecycle. This practice is central to the DevSecOps model and helps identify vulnerabilities early, reducing the risk of security issues in production.

Sample Question 3 — Secure Software Supply Chain

A financial services company is concerned about the provenance of open-source software components used in its applications. To address this concern, what should be the primary focus of the company's software supply chain security strategy?

  1. A. Ensure all open-source components are sourced from the same repository.
  2. B. Implement a robust component validation process to verify the integrity and authenticity of the components. (Correct answer)
  3. C. Only use components that have been vetted by the company's internal security team.
  4. D. Limit the use of open-source components to those that have been used for over five years.

Correct answer: B

Explanation: Implementing a robust component validation process is essential for verifying the integrity and authenticity of open-source components. This approach addresses concerns about provenance by ensuring that components are not tampered with and are sourced from trusted origins.

Sample Question 4 — Secure Software Supply Chain

While reviewing the secure software supply chain practices, you discover that the development team frequently uses containers for deploying applications. What is the most effective way to ensure the security of these containerized applications?

  1. A. Rely solely on the security features provided by the container orchestration platform.
  2. B. Implement regular vulnerability scanning of container images and enforce the use of signed images. (Correct answer)
  3. C. Ensure that all container images are stored in a public repository for transparency.
  4. D. Use only containers that have been certified by a third-party security vendor.

Correct answer: B

Explanation: Regular vulnerability scanning of container images and enforcing the use of signed images are effective practices for ensuring the security of containerized applications. These measures help identify and mitigate vulnerabilities and ensure the integrity of the container images used in the deployment.

Sample Question 5 — Secure Software Supply Chain

A tech company is developing a new application and wants to ensure compliance with industry security standards while managing its software supply chain. What is a key activity the company should perform to achieve this goal?

  1. A. Exclude all third-party components to avoid compliance issues.
  2. B. Develop a custom security standard that fits the company's specific needs.
  3. C. Perform a risk assessment to identify and address potential vulnerabilities in the supply chain. (Correct answer)
  4. D. Rely on end-user feedback to identify security issues post-deployment.

Correct answer: C

Explanation: Performing a risk assessment is crucial for identifying and addressing potential vulnerabilities in the software supply chain. This activity helps the company understand the security risks associated with third-party components and ensures compliance with industry security standards.

Sample Question 6 — Secure Software Supply Chain

A financial services company is developing a new online banking application. The development team is integrating third-party open-source libraries to accelerate the process. During a security review, the team discovers that one of the libraries has known vulnerabilities. What is the BEST next step to address this issue?

  1. A. Remove the library and rewrite the functionality from scratch.
  2. B. Document the vulnerabilities in the risk register and continue using the library.
  3. C. Look for an updated version of the library that addresses the vulnerabilities. (Correct answer)
  4. D. Implement runtime application self-protection (RASP) to mitigate the vulnerabilities.

Correct answer: C

Explanation: The best next step is to look for an updated version of the library that addresses the vulnerabilities. This approach ensures that the application remains secure while leveraging the benefits of the open-source library. Option A is not practical as it would require significant resources and time. Option B is insufficient as it does not address the vulnerabilities. Option D is a potential mitigation but should not be the first step without attempting to update the library.

Sample Question 7 — Secure Software Supply Chain

During the development of a healthcare application, the project manager emphasizes the importance of maintaining a secure software supply chain. Which of the following actions should the team prioritize to ensure the security of third-party components used in the application?

  1. A. Perform static code analysis on all third-party components.
  2. B. Create a Software Bill of Materials (SBOM) for all third-party components. (Correct answer)
  3. C. Limit the use of third-party components to those from reputable vendors.
  4. D. Conduct penetration testing on the final integrated application.

Correct answer: B

Explanation: Creating a Software Bill of Materials (SBOM) is crucial for maintaining a secure software supply chain as it provides transparency into the components used, enabling better tracking and management of vulnerabilities. Option A is useful but does not provide an overview of all components. Option C is a good practice but not sufficient on its own. Option D is important but focuses on the final product rather than the supply chain.

Sample Question 8 — Secure Software Supply Chain

A software development firm is transitioning to a DevSecOps model to improve security throughout the software development lifecycle. What is the MOST strategic action the firm should take to ensure secure integration of third-party software components?

  1. A. Implement a continuous integration/continuous deployment (CI/CD) pipeline.
  2. B. Establish a governance policy for third-party software evaluation and approval. (Correct answer)
  3. C. Train developers on secure coding practices specific to third-party software.
  4. D. Perform regular security audits on third-party software components.

Correct answer: B

Explanation: Establishing a governance policy for third-party software evaluation and approval is the most strategic action as it ensures that all components are evaluated for security risks before integration. This aligns with a comprehensive approach to secure the supply chain. Option A supports DevSecOps but doesn't specifically address third-party software. Option C is beneficial but not as strategic as establishing governance. Option D is reactive rather than proactive.

Sample Question 9 — Secure Software Supply Chain

A retail company is developing a new e-commerce platform and wants to ensure compliance with industry standards for secure software supply chains. Which framework should the company consider adopting to guide its supply chain security practices?

  1. A. ISO/IEC 27001
  2. B. NIST SP 800-53
  3. C. OWASP ASVS
  4. D. NIST SSDF (Correct answer)

Correct answer: D

Explanation: The NIST Secure Software Development Framework (SSDF) provides guidelines specifically for integrating security into the software development lifecycle, including supply chain security. ISO/IEC 27001 (Option A) focuses on information security management systems. NIST SP 800-53 (Option B) provides security and privacy controls for federal information systems. OWASP ASVS (Option C) is focused on application security verification.

Sample Question 10 — Secure Software Supply Chain

An enterprise is concerned about the security of its software supply chain due to the increasing use of open-source software. What is the MOST effective way to manage the risk associated with open-source components?

  1. A. Restrict the use of open-source software to only those with a large community of contributors.
  2. B. Regularly update open-source components and monitor for known vulnerabilities. (Correct answer)
  3. C. Use a proprietary software alternative whenever possible.
  4. D. Conduct a one-time code review of all open-source components before integration.

Correct answer: B

Explanation: Regularly updating open-source components and monitoring for known vulnerabilities is the most effective way to manage risk, as it ensures that vulnerabilities are addressed promptly. Option A is not sufficient as community size does not guarantee security. Option C limits the benefits of open-source software. Option D is inadequate as a one-time review does not account for new vulnerabilities that may arise.

How to Study CSSLP Secure Software Supply Chain

Combine these CSSLP Secure Software Supply Chain practice questions with the official ISC² CSSLP CBK guide and hands-on labs. The CSSLP exam emphasizes scenario reasoning, so always relate concepts back to real engineering decisions in your own projects — that applied understanding is what separates passing and failing scores.

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