Essential Components of a Secure Software Development Lifecycle (SSDLC) for Cloud Applications
Which THREE of the following are essential components of a Secure Software Development Lifecycle (SSDLC) for cloud applications?
Quick Answer
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.
⚠ Common exam trap
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.
Answer choices
Why each option matters
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.
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.
- ✓
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.
- ✓
Dynamic application security testing (DAST) against staging environments.
Why this is correct
DAST tests the running application for vulnerabilities.
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Same concept, more angles
1 more way this is tested on CCSP
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
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: 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.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCSP exam.