KCSA Compliance And Security Frameworks Practice Question
An auditor is reviewing compliance with CIS Kubernetes Benchmark control 1.2.20, which relates to the kube-apiserver admission control configuration. Which admission plugin is recommended by CIS to prevent default service accounts from automatically mounting API credentials?
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
✓
ServiceAccount
The ServiceAccount admission controller, along with disabling automatic token mounting via serviceAccountName/automountServiceAccountToken, is governed by admission plugins. Specifically, NamespaceLifecycle and PodNodeSecurity are relevant, but for service account automation management, the ServiceAccount admission controller governs default behavior.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DefaultTolerationSeconds
Why it's wrong here
DefaultTolerationSeconds sets default eviction tolerations.
- ✗
AlwaysAdmit
Why it's wrong here
AlwaysAdmit allows all requests and is discouraged by CIS.
- ✗
NodeRestriction
Why it's wrong here
NodeRestriction limits what kubelets can modify.
- ✓
ServiceAccount
Why this is correct
The ServiceAccount admission controller manages service account creation and token defaults.
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.