- A
Use ConfigMap for configuration file and Secret for database password
Separating concerns: ConfigMap for non-sensitive, Secret for sensitive.
- B
Use ConfigMap for both
Why wrong: Storing passwords in ConfigMap is insecure; Secrets should be used for sensitive data.
- C
Use PersistentVolume for configuration and environment variables for the password
Why wrong: PersistentVolume is for persistent storage, not configuration.
- D
Use Secret for both
Why wrong: Secrets can hold both, but ConfigMap is more appropriate for non-sensitive config.
Question 880 of 997
ConfigMap and Secret: Best Practice for Mixed Configurations
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 web application that needs to read configuration from a file and also access a database password. Which combination of resources should you use to manage these configurations securely?
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
✓
Use ConfigMap for configuration file and Secret for database password
ConfigMap is designed for storing non-confidential configuration data like configuration files, while Secret is specifically for sensitive data such as database passwords. Secrets are base64-encoded and can be encrypted at rest using etcd encryption or KMS, providing a security boundary that ConfigMaps lack. This combination follows Kubernetes best practices for separating configuration from secrets.
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.
- ✓
Use ConfigMap for configuration file and Secret for database password
Why this is correct
Separating concerns: ConfigMap for non-sensitive, Secret for sensitive.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use ConfigMap for both
Why it's wrong here
Storing passwords in ConfigMap is insecure; Secrets should be used for sensitive data.
- ✗
Use PersistentVolume for configuration and environment variables for the password
Why it's wrong here
PersistentVolume is for persistent storage, not configuration.
- ✗
Use Secret for both
Why it's wrong here
Secrets can hold both, but ConfigMap is more appropriate for non-sensitive config.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The CNCF often tests the misconception that Secrets are inherently secure because they are base64-encoded, leading candidates to think Secrets are safe for all data, when in fact base64 is not encryption and Secrets require additional encryption-at-rest configuration for true security.
Detailed technical explanation
How to think about this question
Under the hood, Secrets are stored in etcd and can be encrypted using a KMS provider or etcd encryption at rest (e.g., AES-CBC with a 32-byte key). ConfigMaps are stored as plaintext in etcd unless etcd encryption is enabled, but they lack the native encryption support that Secrets have via KMS. In a real-world scenario, a CI/CD pipeline might mount a ConfigMap for app config and inject a Secret as an environment variable or volume mount, ensuring the password never appears in logs or version control.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Kubernetes Fundamentals — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this KCNA question test?
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: Use ConfigMap for configuration file and Secret for database password — ConfigMap is designed for storing non-confidential configuration data like configuration files, while Secret is specifically for sensitive data such as database passwords. Secrets are base64-encoded and can be encrypted at rest using etcd encryption or KMS, providing a security boundary that ConfigMaps lack. This combination follows Kubernetes best practices for separating configuration from secrets.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jul 4, 2026
This KCNA practice question is part of Courseiva's free CNCF 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 KCNA exam.
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