KCSA Kubernetes Security Fundamentals Practice Question
What is the primary function of the 'automountServiceAccountToken: false' setting in a Pod specification?
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
✓
It prevents the ServiceAccount API token from being automatically mounted inside the pod.
Setting automountServiceAccountToken to false prevents the automatic mounting of the ServiceAccount API token into the pod's filesystem, reducing the attack surface if the pod is compromised.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It deletes the ServiceAccount object from the cluster when the pod terminates.
Why it's wrong here
ServiceAccounts persist independently of pods.
- ✗
It prevents the pod from communicating with the Kubernetes API server entirely.
Why it's wrong here
Pods can still communicate with the API server if they use alternative authentication or anonymous requests (if allowed), though token auth is disabled.
- ✗
It disables RBAC authorization checks for the pod.
Why it's wrong here
RBAC is enforced by the API server regardless of token mounting.
- ✓
It prevents the ServiceAccount API token from being automatically mounted inside the pod.
Why this is correct
This setting disables token auto-mounting for enhanced security.
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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.