PCA (Prometheus Certified Associate) sample exam question with answer 243

Question:
What is a Prometheus client library used for? (Select all that apply.)

1. Creating Prometheus exporters
2. Instrumenting applications with Prometheus metrics
3. Sending alerts to Alertmanager
4. Pushing metrics to Pushgateway
5. Performing scrapes

Answer:
A, B, D - correct answers
C, E - this is not a function of Prometheus client libraries