PCA Observability Concepts Practice Question
Which component is responsible for executing queries written in PromQL?
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
✓
Prometheus Server
The Prometheus server itself contains the query engine that processes PromQL expressions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Exporter
Why it's wrong here
Exporters are for ingestion.
- ✗
Alertmanager
Why it's wrong here
Alertmanager evaluates rules, but not ad-hoc queries.
- ✓
Prometheus Server
Why this is correct
Prometheus parses and executes the query.
- ✗
Grafana
Why it's wrong here
Grafana sends the query to Prometheus.
About these practice questions
One of 304 original PCA practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.