CCSP Cloud Platform and Infrastructure Security Practice Question
A cloud security auditor is reviewing container runtime configurations. Which TWO practices help prevent a container from compromising the host operating system?
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
✓
Using a read-only root filesystem
Running containers without the --privileged flag and with a read-only root filesystem reduces the risk of host compromise.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Using a read-only root filesystem
Why this is correct
A read-only filesystem prevents writing to critical system areas.
- ✗
Disabling SELinux inside the container
Why it's wrong here
Disabling SELinux reduces security.
- ✗
Running containers in privileged mode
Why it's wrong here
Privileged mode grants extensive host access, increasing risk.
- ✓
Dropping all Linux capabilities
Why this is correct
Dropping all Linux capabilities removes every granular privilege—such as `CAP_SYS_ADMIN` or `CAP_NET_RAW`—that a containerised process could otherwise inherit from the host kernel. This directly satisfies the stem’s requirement to prevent container-to-host compromise by eliminating the capability-based attack surface that could allow privilege escalation or direct kernel manipulation.
- ✗
Mapping the host's Docker socket into the container
Why it's wrong here
Mapping the Docker socket gives container control over the host daemon.
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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.