The answer is dynamic application security testing (DAST) against staging environments, along with security regression testing and threat modeling, as these three form the essential components of a Secure Software Development Lifecycle (SSDLC) for cloud applications. Security regression testing is particularly critical because it ensures that new code changes in continuous integration and continuous delivery pipelines do not reintroduce previously patched vulnerabilities, directly supporting the verify phase of the SSDLC. On the Certified Cloud Security Professional CCSP exam, this concept tests your understanding of how cloud-native rapid iterations demand continuous validation rather than point-in-time checks. A common trap is confusing static analysis (SAST) with dynamic testing—remember that DAST probes running applications in staging, mimicking real attacker behavior. For a memory tip, think “D-S-T” for Dynamic, Staging, and Testing—the trio that catches runtime flaws before production deployment.
CCSP Cloud Application Security Practice Question
This CCSP practice question tests your understanding of cloud application security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE of the following are essential components of a Secure Software Development Lifecycle (SSDLC) for cloud applications?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Security regression testing to validate that new code does not reintroduce vulnerabilities.
Security regression testing (C) is essential because it ensures that new code changes do not reintroduce previously fixed vulnerabilities, which is critical in the continuous integration/continuous delivery (CI/CD) pipelines typical of cloud applications. This testing validates that security patches remain effective across rapid iterations, directly supporting the 'verify' phase of the SSDLC.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Manual penetration testing after every code commit.
Why it's wrong here
Manual testing is not practical for every commit; automated testing is essential.
✗
Security awareness training for all developers.
Why it's wrong here
While important, training is not a technical component of the SSDLC process itself.
✓
Security regression testing to validate that new code does not reintroduce vulnerabilities.
Why this is correct
Regression testing ensures that security fixes remain effective over time.
Related concept
Read the scenario before looking for a memorised answer.
✓
Static application security testing (SAST) integrated into the CI/CD pipeline.
Why this is correct
SAST identifies vulnerabilities in source code early in the development cycle.
Related concept
Read the scenario before looking for a memorised answer.
✓
Dynamic application security testing (DAST) against staging environments.
Why this is correct
DAST tests the running application for vulnerabilities.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
ISC2 often tests the distinction between 'essential SSDLC components' (technical controls integrated into the pipeline) and 'supporting activities' (like training or manual testing), leading candidates to select B or A as they confuse general best practices with mandatory lifecycle components.
Detailed technical explanation
How to think about this question
Security regression testing often leverages automated test suites that replay known attack vectors (e.g., SQL injection payloads, XSS scripts) against the application's API endpoints or UI, verifying that fixes remain intact after code merges. In cloud-native environments, this can be integrated into the CI/CD pipeline using tools like OWASP ZAP in regression mode, which compares current scan results against a baseline to detect re-emergence of vulnerabilities. A real-world scenario: after patching a critical authentication bypass in a microservice, regression testing catches the same flaw when a developer accidentally reverts the fix during a refactor.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Cloud Application Security — This question tests Cloud Application Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Security regression testing to validate that new code does not reintroduce vulnerabilities. — Security regression testing (C) is essential because it ensures that new code changes do not reintroduce previously fixed vulnerabilities, which is critical in the continuous integration/continuous delivery (CI/CD) pipelines typical of cloud applications. This testing validates that security patches remain effective across rapid iterations, directly supporting the 'verify' phase of the SSDLC.
What should I do if I get this CCSP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Variation 1. Which THREE of the following are essential components of a Secure Software Development Lifecycle (SSDLC) in the cloud? (Choose three.)
medium
✓ A.Static application security testing (SAST) in CI/CD
✓ B.Dynamic application security testing (DAST) in staging
C.Manual code reviews without automation
✓ D.Threat modeling during design phase
E.Annual penetration testing only
Why A: Option A is correct because SAST tools scan source code, bytecode, or binaries for vulnerabilities like SQL injection or buffer overflows early in the development cycle. Integrating SAST into the CI/CD pipeline enables automated, continuous security checks on every commit or build, which is a core practice of a Secure Software Development Lifecycle (SSDLC) in the cloud. This shift-left approach catches flaws before they reach production, reducing remediation cost and risk.
Last reviewed: Jun 30, 2026
Question Discussion
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