KCSA Kubernetes Cluster Component Security Practice Question
Which TWO of the following are core security hardening best practices for the Kubernetes API server? (Choose TWO)
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
✓
Ensure the insecure port (--insecure-port) is disabled or set to 0.
Disabling anonymous requests and enforcing strong TLS versions are essential API server hardening steps.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Ensure the insecure port (--insecure-port) is disabled or set to 0.
Why this is correct
Disabling the insecure port stops unauthenticated HTTP access.
- ✗
Configure the API server to use HTTP instead of HTTPS for performance.
Why it's wrong here
Using HTTP exposes traffic in plaintext, which is a major security violation.
- ✗
Store all kubeconfig credentials in public ConfigMaps.
Why it's wrong here
ConfigMaps are unencrypted and public to namespace users, compromising security.
- ✗
Grant cluster-admin permissions to all authenticated users by default.
Why it's wrong here
This violates the principle of least privilege.
- ✓
Disable anonymous authentication by setting --anonymous-auth=false.
Why this is correct
Disabling anonymous auth prevents unauthenticated queries against the API server.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official CNCF / Linux Foundation exam blueprint
This KCSA practice question is part of Courseiva's free CNCF / Linux Foundation 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 KCSA exam.