CAS-004 Security Architecture Practice Question
During a secure SDLC, a development team wants to identify vulnerabilities in running code. Which type of testing should be performed?
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
✓
DAST
DAST (Dynamic Application Security Testing) tests running applications from the outside, simulating attacks to find vulnerabilities in runtime behavior.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
IAST
Why it's wrong here
IAST combines static and dynamic but requires instrumentation.
- ✗
SAST
Why it's wrong here
SAST analyzes source code statically.
- ✓
DAST
Why this is correct
DAST tests running code for vulnerabilities.
- ✗
RASP
Why it's wrong here
RASP is runtime protection, not testing.
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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.