Prometheus Certified Associate Exam (PCA) Free Practice Test

Question 1

What are Inhibition rules?

A. Inhibition rules inject a new set of alerts when a matching alert is firing.

B. Inhibition rules mute a set of alerts when another matching alert is firing.

C. Inhibition rules inspect alerts when a matching set of alerts is firing.

D. Inhibition rules repeat a set of alerts when another matching alert is firing.

Correct Answer: B

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Question 2

Which of the following signal belongs to symptom-based alerting?

A. CPU usage

B. Disk space

C. Database memory utilization

D. API latency

Correct Answer: D

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Question 3

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

A. With "federation"

B. With S3 Buckets

C. With "scraping"

D. With "remote write"

Correct Answer: D

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Question 4

Which of the following PromQL queries is invalid?

A. max without (instance) up

B. max without (instance, job) up

C. max on (instance) (up)

D. max by (instance) up

Correct Answer: C

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Question 5

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

A. grpc_response_size_total

B. grpc_response_size_bytes

C. grpc_response_size_sum

D. grpc_response_size

Correct Answer: B

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Question 6

What is api_http_requests_total in the following metric?
api_http_requests_total{method="POST", handler="/messages"}

A. "api_http_requests_total" is a metric type.

B. "api_http_requests_total" is a metric field.

C. "api_http_requests_total" is a metric name.

D. "api_http_requests_total" is a metric label name.

Correct Answer: C

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Question 7

What does the rate() function in PromQL return?

A. The number of samples in a range vector.

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

C. The average of all values in a vector.

D. The total increase of a counter over a range.

Correct Answer: B

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Linux Foundation Prometheus Certified Associate (PCA) Free Practice Test