Latest [Mar 05, 2026] PCA Exam Dumps – Valid and Updated Dumps [Q25-Q47]

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Latest [Mar 05, 2026] PCA Exam Dumps – Valid and Updated Dumps

Free Sales Ending Soon – 100% Valid PCA Exam Dumps with 62 Questions

Linux Foundation PCA Exam Syllabus Topics:

Topic	Details
Topic 1	Instrumentation and Exporters: This domain evaluates the abilities of Software Engineers and addresses the methods for integrating Prometheus into applications. It includes the use of client libraries, the process of instrumenting code, and the proper structuring and naming of metrics. The section also introduces exporters that allow Prometheus to collect metrics from various systems, ensuring efficient and standardized monitoring implementation.
Topic 2	PromQL: This section of the exam measures the skills of Monitoring Specialists and focuses on Prometheus Query Language (PromQL) concepts. It covers data selection, calculating rates and derivatives, and performing aggregations across time and dimensions. Candidates also study the use of binary operators, histograms, and timestamp metrics to analyze monitoring data effectively, ensuring accurate interpretation of system performance and trends.
Topic 3	Alerting and Dashboarding: This section of the exam assesses the competencies of Cloud Operations Engineers and focuses on monitoring visualization and alert management. It covers dashboarding basics, alerting rules configuration, and the use of Alertmanager to handle notifications. Candidates also learn the core principles of when, what, and why to trigger alerts, ensuring they can create reliable monitoring dashboards and proactive alerting systems to maintain system stability.
Topic 4	Prometheus Fundamentals: This domain evaluates the knowledge of DevOps Engineers and emphasizes the core architecture and components of Prometheus. It includes topics such as configuration and scraping techniques, limitations of the Prometheus system, data models and labels, and the exposition format used for data collection. The section ensures a solid grasp of how Prometheus functions as a monitoring and alerting toolkit within distributed environments.
Topic 5	Observability Concepts: This section of the exam measures the skills of Site Reliability Engineers and covers the essential principles of observability used in modern systems. It focuses on understanding metrics, logs, and tracing mechanisms such as spans, as well as the difference between push and pull data collection methods. Candidates also learn about service discovery processes and the fundamentals of defining and maintaining SLOs, SLAs, and SLIs to monitor performance and reliability.

NEW QUESTION 25
What is the minimum requirement for an application to expose Prometheus metrics?

It must be exposed to the Internet.

It must be compiled for 64-bit architectures.

It must be able to serve text over HTTP.

It must run on Linux.

NEW QUESTION 26
How can you send metrics from your Prometheus setup to a remote system, e.g., for long-term storage?

With “federation”

With “remote write”

With “scraping”

With S3 Buckets

NEW QUESTION 27
Which Prometheus component handles service discovery?

Alertmanager

Prometheus Server

Pushgateway

Node Exporter

NEW QUESTION 28
What is the best way to expose a timestamp from your application?

With a gauge that has the timestamp as value.

With a constant metric of value 1 and the timestamp as metric timestamp.

With a counter that is increased to the correct value.

With a constant metric of value 1 and the timestamp as label.

NEW QUESTION 29
Which field in alerting rules files indicates the time an alert needs to go from pending to firing state?

duration

interval

timeout

for

NEW QUESTION 30
How would you correctly name a metric that provides metadata information about the binary?

app_build_info

app_build

app_metadata

app_build_desc

NEW QUESTION 31
Which PromQL expression computes the rate of API Server requests across the different cloud providers from the following metrics?
apiserver_request_total{job=”kube-apiserver”, instance=”192.168.1.220:6443″, cloud=”aws”} 1 apiserver_request_total{job=”kube-apiserver”, instance=”192.168.1.121:6443″, cloud=”gcloud”} 5

rate(apiserver_request_total{job=”kube-apiserver”}[5m]) by (cloud)

sum by (cloud) (apiserver_request_total{job=”kube-apiserver”})

sum by (cloud)(rate(apiserver_request_total{job=”kube-apiserver”}[5m]))

rate(sum by (cloud)(apiserver_request_total{job=”kube-apiserver”})[5m])

NEW QUESTION 32
How would you name a metric that measures gRPC response size?

grpc_response_size_bytes

grpc_response_size

grpc_response_size_total

grpc_response_size_sum

NEW QUESTION 33
How do you calculate the average request duration during the last 5 minutes from a histogram or summary called http_request_duration_seconds?

rate(http_request_duration_seconds_sum[5m]) / rate(http_request_duration_seconds_count[5m])

rate(http_request_duration_seconds_total[5m]) / rate(http_request_duration_second$_count[5m])

rate(http_request_duration_seconds_total[5m]) / rate(http_request_duration_seconds_average[5m])

rate(http_request_duration_seconds_sum[5m]) / rate(http_request_duration_seconds_average[5m])

NEW QUESTION 34
Which Alertmanager feature allows you to temporarily stop notifications for a specific alert?

Silence

Inhibition

Deduplication

Grouping

NEW QUESTION 35
What’s “wrong” with the myapp_filG_uploads_total{userid=,,5123″,status=”failed”} metric?

The userid should not be exposed as a label.

The status should not be exposed as a label.

The _total suffix should be omitted.

The metric name should consist of dashes instead of underscores.

NEW QUESTION 36
What does the rate() function in PromQL return?

The total increase of a counter over a range.

The per-second rate of increase of a counter metric.

The average of all values in a vector.

The number of samples in a range vector.

NEW QUESTION 37
Which of the following is a valid metric name?

go routines

go.goroutines

go_goroutines

99_goroutines

NEW QUESTION 38
Given the following Histogram metric data, how many requests took less than or equal to 0.1 seconds?
apiserver_request_duration_seconds_bucket{job=”kube-apiserver”, le=”+Inf”} 3 apiserver_request_duration_seconds_bucket{job=”kube-apiserver”, le=”0.05″} 0 apiserver_request_duration_seconds_bucket{job=”kube-apiserver”, le=”0.1″} 1 apiserver_request_duration_seconds_bucket{job=”kube-apiserver”, le=”1″} 3 apiserver_request_duration_seconds_count{job=”kube-apiserver”} 3 apiserver_request_duration_seconds_sum{job=”kube-apiserver”} 0.554003785

0.554003785

NEW QUESTION 39
Which of the following is an invalid @ modifier expression?

go_goroutines @ start()

sum(http_requests_total{method=”GET”}) @ 1609746000

go_goroutines @ end()

sum(http_requests_total{method=”GET”} @ 1609746000)

NEW QUESTION 40
When can you use the Grafana Heatmap panel?

You can use it to graph a counter metric.

You can use it to graph a histogram metric.

You can use it to graph an info metric.

You can use it to graph a gauge metric.

NEW QUESTION 41
How would you add text from the instance label to the alert’s description for the following alert?
alert: InstanceDown
expr: up == 0
for: 5m
labels:
severity: page
annotations:
description: “Instance INSTANCE_NAME_HERE down”

Use $labels.instance instead of INSTANCE_NAME_HERE

Use $value.instance instead of INSTANCE_NAME_HERE

Use $expr.instance instead of INSTANCE_NAME_HERE

Use $metric.instance instead of INSTANCE_NAME_HERE

NEW QUESTION 42
How can you select all the up metrics whose instance label matches the regex fe-.*?

up{instance=regexp(fe-.*)}

up{instance=”fe-.*”}

up{instance~”fe-.*”}

up{instance=~”fe-.*”}

NEW QUESTION 43
How many metric types does Prometheus text format support?

NEW QUESTION 44
What is a difference between a counter and a gauge?

Counters change value on each scrape and gauges remain static.

Counters and gauges are different names for the same thing.

Counters have no labels while gauges can have many labels.

Counters are only incremented, while gauges can go up and down.

NEW QUESTION 45
What popular open-source project is commonly used to visualize Prometheus data?

Kibana

Grafana

Thanos

Loki

NEW QUESTION 46
What is api_http_requests_total in the following metric?
api_http_requests_total{method=”POST”, handler=”/messages”}

“api_http_requests_total” is a metric label name.

“api_http_requests_total” is a metric type.

“api_http_requests_total” is a metric name.

“api_http_requests_total” is a metric field.

NEW QUESTION 47
Given the metric prometheus_tsdb_lowest_timestamp_seconds, how do you know in which month the lowest timestamp of your Prometheus TSDB belongs?

(time() – prometheus_tsdb_lowest_timestamp_seconds) / 86400

format_date(prometheus_tsdb_lowest_timestamp_seconds,”%M”)

month(prometheus_tsdb_lowest_timestamp_seconds)

prometheus_tsdb_lowest_timestamp_seconds % month

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Latest [Mar 05, 2026] PCA Exam Dumps – Valid and Updated Dumps [Q25-Q47]

Linux Foundation PCA Exam Syllabus Topics:

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Linux Foundation PCA Exam Syllabus Topics:

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