PCA Promql Practice Question
Which THREE of the following modifiers or keywords are used in PromQL binary vector matching? (Choose THREE)
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
✓
group_left
Binary vector matching modifiers include on, ignoring, group_left, and group_right.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
group_left
Why this is correct
Correct. 'group_left' handles many-to-one joins.
- ✗
keep_matching
Why it's wrong here
keep_matching is not a PromQL keyword.
- ✓
on
Why this is correct
Correct. 'on' restricts matching labels.
- ✓
ignoring
Why this is correct
Correct. 'ignoring' excludes matching labels.
- ✗
group_by
Why it's wrong here
group_by is not a binary matching modifier; 'by' is used in aggregations.
About these practice questions
This PCA question is part of Courseiva's 304-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.