PCA PCA Exporters & Integrations

Question 1

What is the primary role of a Prometheus exporter?

Accepted Answer

Translating third-party system metrics into Prometheus exposition format

Answer

Sending metrics directly to Grafana

Answer

Storing time-series data long-term

Answer

Generating alerting rules automatically

Question 2

Which exporter is the standard choice for exposing Linux host-level metrics such as CPU, memory, and disk?

Accepted Answer

node_exporter

Answer

process_exporter

Answer

blackbox_exporter

Answer

host_exporter

Question 3

What does the Prometheus blackbox_exporter probe?

Accepted Answer

External endpoint availability via HTTP, HTTPS, DNS, TCP, and ICMP

Answer

Internal application JVM metrics

Answer

Database query latency only

Answer

Container runtime metrics

Question 4

How does Prometheus scrape the blackbox_exporter to probe a specific target URL?

Accepted Answer

The target URL is passed as a query parameter (?target=) in the scrape URL

Answer

The target URL is set in blackbox.yml and scraped at /metrics

Answer

A separate exporter instance is started per target

Answer

The blackbox_exporter discovers targets via DNS automatically

Question 5

What metric does the blackbox_exporter expose to indicate whether a probe succeeded?

Accepted Answer

probe_success

Answer

probe_status

Answer

blackbox_probe_ok

Answer

endpoint_up

Question 6

Which exporter is commonly used to expose PostgreSQL database metrics for Prometheus?

Accepted Answer

postgres_exporter

Answer

postgresql_exporter

Answer

db_exporter

Answer

sql_exporter