PCA (Prometheus Certified Associate) sample exam question with answer 364

Question:
Which of the following exporters is BEST for monitoring an HTTP web server endpoint to ensure that it returns a 200 status code?

1. SNMP Exporter
2. HTTP Exporter
3. Blackbox Exporter
4. Node Exporter

Answer:
C - is the correct answer. More about blackbox_exporter
A - is incorrect as the purpose of SNMP Exporter is to expose detailed metrics from network devices using the Simple Network Management Protocol
B - is incorrect as there is no Prometheus-maintained exporter called HTTP Exporter. The name of the Prometheus-maintained exporter with the desired functionality is Blackbox Exporter
D - is incorrect as the purpose of Node Exporter is to expose detailed metrics about Linux hosts