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CAS-004 Kubernetes security best practices? Practice Question
Which two of the following are best practices for securing container orchestration platforms (e.g., Kubernetes)? (Select two.)
⚠ Common exam trap
The CAS-004 exam often tests the misconception that privileged containers are necessary for system services, when in fact they should be avoided and replaced with specific capability grants (e.g., CAP_NET_ADMIN) or security context constraints.
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
✓
Apply network policies to isolate workloads.
Network policies in Kubernetes act as a firewall for pods, controlling ingress and egress traffic at the IP address or port level (OSI layer 3 or 4). By default, all pods can communicate with each other; applying network policies enforces least-privilege segmentation, which is a core security best practice for container orchestration platforms.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use privileged containers for system services.
Why it's wrong here
Privileged containers should be avoided as they have nearly unrestricted access to the host.
- ✗
Disable all security contexts to avoid restrictions.
Why it's wrong here
Security contexts enforce necessary restrictions; disabling them weakens security.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CAS-005 exam frequently reuses these exact scenarios with slightly different constraints.
✓Apply network policies to isolate workloads.Correct answer▾
✗Use privileged containers for system services.Wrong answer — click to see why▾
Why this is wrong here
Privileged containers should be avoided as they have nearly unrestricted access to the host.
✗Disable all security contexts to avoid restrictions.Wrong answer — click to see why▾
Why this is wrong here
Security contexts enforce necessary restrictions; disabling them weakens security.
Analysis generated from the official CAS-005blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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About these practice questions
Courseiva writes every CAS-005 question from scratch — 968 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.