hardMultiple SelectObjective-mapped
CAS-004 Practice Question: Which THREE of the following are essential…
Which THREE of the following are essential components of a secure software development lifecycle (SSDLC) to ensure security engineering? (Select exactly 3.)
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
✓
Dynamic application security testing (DAST) and penetration testing before release.
Options A, C, and E are correct. Threat modeling, static analysis, and penetration testing are core SSDLC activities. Option B is wrong because user acceptance testing (UAT) validates business requirements, not security. Option D is wrong because daily stand-up meetings are a project management practice, not security-specific.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Dynamic application security testing (DAST) and penetration testing before release.
Why this is correct
Dynamic application security testing and penetration testing identify vulnerabilities in the running application, crucial before release.
- ✗
User acceptance testing (UAT) to validate business requirements.
Why it's wrong here
User acceptance testing validates that the software meets business requirements, not security engineering.
- ✓
Static application security testing (SAST) in the development phase.
Why this is correct
Static application security testing analyzes source code for vulnerabilities early in development.
- ✗
Daily stand-up meetings for developers.
Why it's wrong here
Daily stand-up meetings are an agile project management practice, not a security activity.
- ✓
Threat modeling during design phase.
Why this is correct
Threat modeling identifies threats and mitigations during the design phase.
Go deeper
Related to this question
About these practice questions
This CAS-005 question is part of Courseiva's 968-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA 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 CAS-005 exam.