PCA Observability Concepts Practice Question
Why are 'logs' essential for debugging, even with perfect metrics?
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
✓
Logs contain detailed context about specific events.
Logs provide the granular, detailed context (like specific error messages or stack traces) that metrics cannot provide.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Metrics are too slow.
Why it's wrong here
Metrics are fast.
- ✓
Logs contain detailed context about specific events.
Why this is correct
Logs allow drill-down into specific failures.
- ✗
Logs are free to store.
Why it's wrong here
Logs are expensive.
- ✗
Metrics cannot be used for debugging.
Why it's wrong here
Metrics are for initial investigation.
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 PCA 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 PCA exam.