PCA (Prometheus Certified Associate) sample exam question with answer 178

Question:
What configuration will make it so Prometheus doesn’t scrape targets with a label of team: frontend?

1. relabel_configs:
     - source_labels: [team]
       regex: frontend
       action: drop

2. relabel_configs:
     - source_labels: [frontend]
       regex: team
       action: drop

3. metric_relabel_configs:
     - source_labels: [team]
       regex: frontend
       action: drop

4. relabel_configs:
     - match: [team]
       regex: frontend
       action: drop

Answer:
A - is the correct answer. The relabel_configs is where you will define which targets Prometheus should scrape. To match on label team: frontend. Set the source_labels to team, regex field should represent the value of the label frontend, since we don’t want to scrape the targets, specify action: drop