What is the purpose of client libraries in Prometheus instrumentation?

To store metrics in a time series database

To expose metrics from applications in the Prometheus exposition format

To scrape metrics from other applications

A company has a Prometheus monitoring stack. They have a batch job that runs every 30 minutes and pushes metrics to the Pushgateway. They also have a long-running service that exposes metrics via an HTTP endpoint. They want to ensure that metrics from the batch job are not lost if the Pushgateway is restarted. What should they do?

Have the batch job expose an HTTP endpoint and scrape it directly with Prometheus.

Run the batch job as a long-running service so Prometheus can scrape it.

Use a recording rule to store the batch job's metrics in Prometheus.

Configure the batch job to push metrics to the Pushgateway after the job completes, and ensure the Pushgateway has persistent storage.

LPI DevOps Tools Engineer

Domain 4Objective 2

704.2 Prometheus Monitoring (weight: 6) DEVOPS-TOOLS-ENGINEER Practice Questions (Page 3)

Part of the 704 Security and Observability domain, which makes up ~26% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–16 in this domain), expect 2–4 from this objective — we provide 38 practice questions to prepare you well beyond it. (estimate)

38questions here

8free pages

13concepts

13 Concepts in This Objective

Prometheus architecture and components
Metrics collection and exposition formats
PromQL queries and data selection
PromQL aggregation and rate calculations
Prometheus configuration for targets and scraping
Service discovery and dynamic target management
Alerting rules and Alertmanager integration
Recording rules and rule evaluation
Prometheus data model and storage
Exporters and instrumentation
Pushgateway for short-lived jobs
Prometheus federation and high availability
Troubleshooting and debugging Prometheus

Questions 11–15

11foundation · easy
Which Prometheus web UI page would you check to see if any scrape targets are currently failing?
Select an answer first
12foundation · easy
What is the purpose of client libraries in Prometheus instrumentation?
Select an answer first
13application · medium
A company has a Prometheus monitoring stack. They have a batch job that runs every 30 minutes and pushes metrics to the Pushgateway. They also have a long-running service that exposes metrics via an HTTP endpoint. They want to ensure that metrics from the batch job are not lost if the Pushgateway is restarted. What should they do?
Select an answer first
14foundation · easy
Which configuration option in a scrape job sets how often Prometheus scrapes the targets?
Select an answer first
15foundation · easy
Which Prometheus metric type is best suited for counting the total number of HTTP requests received by a service, where the value only increases over time?
Select an answer first

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704.2 Prometheus Monitoring (weight: 6) DEVOPS-TOOLS-ENGINEER Practice Questions (Page 3)

Questions 11–15

Which Prometheus web UI page would you check to see if any scrape targets are currently failing?

What is the purpose of client libraries in Prometheus instrumentation?

Which configuration option in a scrape job sets how often Prometheus scrapes the targets?

Which Prometheus metric type is best suited for counting the total number of HTTP requests received by a service, where the value only increases over time?

Keep studying — 704 Security and Observability