PCA Instrumentation And Exporters Practice Question
Which TWO of the following should be considered when defining metric names?
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 descriptive, clear names
Names should be descriptive and use the unit suffix as per conventions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Avoid using underscores
Why it's wrong here
Underscores are standard separators.
- ✗
Use random IDs to ensure uniqueness
Why it's wrong here
This leads to cardinality issues.
- ✓
Use descriptive, clear names
Why this is correct
Correct.
- ✓
Include the unit suffix
Why this is correct
Correct.
- ✗
Include the instance name in the metric
Why it's wrong here
Instance is a label, not part of the name.
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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.