KCSA Overview OF Cloud Native Security Practice Question
When considering the principle of least privilege within a cloud native architecture, what is the recommended approach for granting permissions to a Kubernetes application running in a Pod?
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
✓
Create a dedicated ServiceAccount with strictly scoped RBAC roles granting only required API permissions.
Applications running in pods should use dedicated ServiceAccounts with minimal permissions rather than default or overly permissive service accounts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Share a single global ServiceAccount across all namespaces in the cluster.
Why it's wrong here
Sharing a global account violates isolation and least privilege principles.
- ✗
Mount the default ServiceAccount token with cluster-admin rights to ensure compatibility.
Why it's wrong here
Mounting cluster-admin rights violates the principle of least privilege.
- ✗
Disable authentication for the application namespace entirely.
Why it's wrong here
Disabling authentication exposes the application to unauthorized access.
- ✓
Create a dedicated ServiceAccount with strictly scoped RBAC roles granting only required API permissions.
Why this is correct
Least privilege requires scoping ServiceAccounts to only the necessary permissions.
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.