CAS-004 Security Architecture Practice Question
During a secure SDLC, a development team is reviewing code for security flaws early in the development process. Which type of testing is MOST appropriate for identifying vulnerabilities in source code before it is compiled?
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
✓
SAST
SAST (Static Application Security Testing) analyzes source code at rest to find vulnerabilities like injection flaws, without executing the code.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DAST
Why it's wrong here
DAST tests running applications, not source code.
- ✓
SAST
Why this is correct
SAST analyzes source code before compilation.
- ✗
IAST
Why it's wrong here
IAST combines static and dynamic analysis but requires runtime.
- ✗
RASP
Why it's wrong here
RASP protects applications at runtime, not during development.
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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.