CCSP Cloud Platform and Infrastructure Security Practice Question
A cloud security team is implementing container runtime security. Which of the following measures is most effective at preventing a container from breaking out to the host OS?
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
✓
Applying a Seccomp profile that whitelists only necessary syscalls
Seccomp profiles restrict system calls available to containers, significantly reducing the attack surface for container escape vulnerabilities. Dropping capabilities and read-only root filesystem are important but not as comprehensive as seccomp.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Setting the container's root filesystem to read-only
Why it's wrong here
Read-only filesystem prevents modification but not escape.
- ✓
Applying a Seccomp profile that whitelists only necessary syscalls
Why this is correct
Seccomp profiles directly limit syscalls, a common vector for escape.
- ✗
Using a non-root user inside the container
Why it's wrong here
Non-root user reduces privileges but does not prevent all escape techniques.
- ✗
Dropping all Linux capabilities except those required
Why it's wrong here
Dropping capabilities helps but does not restrict syscalls.
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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.