PCA Observability Concepts Practice Question
You are monitoring a legacy batch processing job that runs for only 30 seconds once every 24 hours. Which Prometheus component is necessary to collect these metrics?
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 Pushgateway
Since the job is short-lived, Prometheus's standard scrape interval will likely miss it. The Pushgateway allows the job to push metrics before exiting.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Prometheus Exporter
Why it's wrong here
Exporters are for persistent services that can be scraped.
- ✗
Prometheus Federation
Why it's wrong here
Federation is for aggregating metrics between multiple Prometheus servers.
- ✓
Prometheus Pushgateway
Why this is correct
Pushgateway is designed to temporarily store metrics from short-lived batch jobs until Prometheus scrapes it.
- ✗
Prometheus Alertmanager
Why it's wrong here
Alertmanager handles notifications, not metric ingestion.
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.