PCA Promql Practice Question
What is the difference between 'count' and 'count_values'?
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
✓
count returns the number of series; count_values returns the frequency of values.
count aggregates by number of series, while count_values counts the number of occurrences of each sample value.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
count_values is faster.
Why it's wrong here
Performance is not the differentiator.
- ✗
count is for gauges; count_values is for counters.
Why it's wrong here
Both can work on various metric types.
- ✓
count returns the number of series; count_values returns the frequency of values.
Why this is correct
count_values creates new time series based on value frequency.
- ✗
There is no difference.
Why it's wrong here
They function differently.
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.