PCA Alerting And Dashboarding Practice Question
Which Grafana feature allows you to see data from multiple Prometheus servers on a single panel?
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
✓
Data source variables
Grafana allows you to define multiple data sources and even mix them within a dashboard, or use a data source proxy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Panel injection
Why it's wrong here
This is not a Grafana feature.
- ✗
Metric merging
Why it's wrong here
Grafana doesn't have a feature called 'metric merging'.
- ✓
Data source variables
Why this is correct
Variables enable users to dynamically switch or select data sources in a panel.
- ✗
Prometheus federation
Why it's wrong here
Federation is a Prometheus server-side feature, not a Grafana panel feature.
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.