PCA (Prometheus Certified Associate) sample exam question with answer 52

Question:
What does the Prometheus scrape interval represent?

1. How long to wait before giving up on a scrape
2. How often to collect metrics for a scrape
3. Which targets to collect from for a scrape
4. How often to apply scrape metadata as labels

Answer:
B - correct answer. Check configuration
A - this describes the scrape timeout
C - targets are specified though static and/or service discovery configurations
D - scrape metadata are always applied as labels as configured by the relabeling configuration each time a target is scraped