This KCNA practice question tests your understanding of kubernetes fundamentals. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You have a ConfigMap named 'app-config' and a Secret named 'db-password'. You want to mount them into a pod. Which statement is correct?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Both ConfigMaps and Secrets can be mounted as volumes
Both ConfigMaps and Secrets are Kubernetes API objects designed to decouple configuration data from container images. They can be mounted as volumes into pods, allowing files to be created in the container's filesystem with the data from the ConfigMap or Secret. This is a core feature for managing configuration and sensitive data in Kubernetes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Secrets can be mounted as volumes, but ConfigMaps cannot
Why it's wrong here
ConfigMaps can also be mounted as volumes.
✓
Both ConfigMaps and Secrets can be mounted as volumes
Why this is correct
Both resource types support volume mounting and environment variable injection.
Related concept
Read the scenario before looking for a memorised answer.
✗
ConfigMaps can be mounted as volumes, but Secrets cannot
Why it's wrong here
Secrets can also be mounted as volumes.
✗
ConfigMaps and Secrets can only be exposed as environment variables
Why it's wrong here
They can also be mounted as volumes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CNCF often tests the misconception that Secrets and ConfigMaps have different mounting capabilities, when in fact both support volume mounts and environment variable injection, with the key difference being that Secrets are base64-encoded and intended for sensitive data.
Detailed technical explanation
How to think about this question
When a ConfigMap or Secret is mounted as a volume, the kubelet creates a tmpfs (for Secrets) or a regular filesystem (for ConfigMaps) mount point in the pod's filesystem, with each key becoming a file and its value the file content. For Secrets, the data is base64-decoded before being written to the file, and the volume is backed by in-memory tmpfs to avoid writing sensitive data to disk. This is particularly useful for applications that read configuration from files, such as TLS certificates or database connection strings.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the KCNA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this KCNA question in full detail.
Kubernetes Fundamentals — This question tests Kubernetes Fundamentals — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Both ConfigMaps and Secrets can be mounted as volumes — Both ConfigMaps and Secrets are Kubernetes API objects designed to decouple configuration data from container images. They can be mounted as volumes into pods, allowing files to be created in the container's filesystem with the data from the ConfigMap or Secret. This is a core feature for managing configuration and sensitive data in Kubernetes.
What should I do if I get this KCNA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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