PCA Prometheus Fundamentals Practice Question
Which THREE of the following metrics are automatically added to all scraped targets?
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
✓
up
Prometheus adds specific metadata labels such as up, scrape_duration, and scrape_samples_scraped.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
cpu_usage
Why it's wrong here
Not automatic.
- ✓
up
Why this is correct
Indicates scrape success.
- ✗
memory_usage
Why it's wrong here
Not automatic.
- ✓
scrape_samples_scraped
Why this is correct
Number of samples ingested.
- ✓
scrape_duration_seconds
Why this is correct
Time taken to scrape the target.
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.