CAS-004 Security Architecture Practice Question
A container security team wants to enforce that containers run with the least privileges possible. Which Linux security module can be used to restrict system calls available to a container?
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
✓
seccomp
seccomp allows filtering system calls, enabling a whitelist of allowed calls to reduce the kernel attack surface.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Pod Security Policy
Why it's wrong here
PSP controls pod-level security contexts, not syscall filtering.
- ✗
AppArmor
Why it's wrong here
AppArmor provides mandatory access control via profiles but not specifically for syscall filtering.
- ✗
SELinux
Why it's wrong here
SELinux enforces mandatory access control policies, not syscall filtering.
- ✓
seccomp
Why this is correct
seccomp enables filtering of system calls to reduce attack surface.
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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.