PCA Observability Concepts Practice Question
Which THREE actions are commonly performed during the 'relabeling' phase in Prometheus?
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
✓
Mapping multiple labels into one.
Replacing labels, dropping series, and mapping labels are standard relabeling actions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Mapping multiple labels into one.
Why this is correct
Used for normalization.
- ✗
Configuring the storage retention policy.
Why it's wrong here
This is a command line flag.
- ✓
Dropping a metric based on a label value.
Why this is correct
Common for filtering.
- ✓
Replacing a label value with a regex match.
Why this is correct
This is a primary feature.
- ✗
Increasing the memory of the Prometheus instance.
Why it's wrong here
That is a global configuration.
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.