CAS-004 Security Architecture Practice Question
A security analyst is reviewing a Kubernetes cluster's security configuration. Which component should be used to ensure that only authorized pods can communicate with each other?
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
✓
Network Policies
Kubernetes Network Policies allow you to define ingress and egress rules for pods, controlling traffic at the IP address or port level, which is essential for micro-segmentation.
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 Policies (PSP)
Why it's wrong here
PSP controls security-sensitive aspects of pod specification, not network traffic.
- ✗
Seccomp profiles
Why it's wrong here
Seccomp restricts system calls, not network communication.
- ✓
Network Policies
Why this is correct
Network policies define how groups of pods can communicate with each other and other network endpoints.
- ✗
RBAC roles
Why it's wrong here
RBAC controls access to Kubernetes API resources, not pod-to-pod traffic.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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