KCSA Kubernetes Security Fundamentals Practice Question
Which THREE options represent valid ways to supply sensitive data to a container using Kubernetes native features? (Choose THREE)
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
✓
Mounting the Secret as a volume in the Pod specification.
Secrets can be mounted as volumes, exposed as environment variables, or accessed via the Kubernetes API directly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Placing the Secret inside a persistent volume formatted with LUKS encryption.
Why it's wrong here
LUKS is a block device encryption tool, not a native Kubernetes secret delivery mechanism.
- ✓
Mounting the Secret as a volume in the Pod specification.
Why this is correct
Secrets can be mounted as files in a volume.
- ✓
Querying the Kubernetes API server directly from the container using a ServiceAccount with proper RBAC.
Why this is correct
Workloads can fetch Secrets via the API if authorized.
- ✗
Embedding the Secret plaintext string in the container image build args.
Why it's wrong here
Embedding secrets in images is insecure because images are easily inspected.
- ✓
Injecting Secret keys as environment variables.
Why this is correct
Secrets can populate environment variables via envFrom or valueFrom.
About these practice questions
One of 320 original KCSA practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
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.