PCA (Prometheus Certified Associate) sample exam question with answer 223

Question:
What are Prometheus alerting rules?

1. Rules that evaluate a PromQL expression and save the result as a new time series
2. Rules that determine maintenance windows when notifications should not be sent
3. Rules that determine a set of alerts that should be inhibited based on the firing of other alerts
4. Rules that evaluate a PromQL expression and fire one or more alerts if the expression yields results

Answer:
D - is the correct answer, alerting rules
A - is incorrect as behavior is provided through Prometheus recording rules
B - is incorrect as this behavior is provided through Alertmanager silences
C - is incorrect as this behavior is provided through Alertmanager inhibition rules