OTCA Mock Exam and Practice Questions

Practise for the OpenTelemetry Certified Associate exam with mock exams in its real format: 60 multi-choice questions, 90 minutes and a 75% pass mark, with an explanation for every option. Distributed tracing and observability with OpenTelemetry.

Questions
60
multi-choice
Duration
90 min
Pass mark
75%
Study time
2–8 wks
Curriculum verified
Oct 2026
How it is checked

OTCA is one of the 16 certifications required for Golden Kubestronaut. See the full Golden Kubestronaut list →

OTCA exam domains and topics

The official OTCA curriculum splits the exam into 4 weighted domains. Under each are the competencies it lists — the topics the mock exams here are written against.

Questions per domain are the official weight applied to the exam's 60 questions, rounded.

A free OTCA sample question

The OpenTelemetry API and SDK

Q1. Which OpenTelemetry instrument is best suited for counting the number of HTTP requests handled by a service?

Answer options for question 1
  • Incorrect. A Histogram records distributions of values such as request latency, not monotonically increasing counts.

  • Incorrect. UpDownCounter is for values that go up and down (e.g., active connections), not monotonic request counts.

  • Correct. A Counter is the correct instrument for monotonically increasing values such as the total number of requests handled.

  • Incorrect. ObservableGauge reports an instantaneous measured value via a callback, not a count of events.

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What is in the OTCA mock exams

Prerequisites and background knowledge

Basic observability concepts (metrics, traces, logs). Familiarity with Prometheus helps. Understanding of microservices architecture.

Official reference: cncf.io/training/certification/otca.

More OTCA practice resources

Where to go after OTCA

Once you pass OTCA, these certs are natural next steps on the Golden Kubestronaut path:

Frequently asked questions about OTCA

How many questions are on the OTCA exam?

60 multi-choice questions in 90 minutes. Each OTCA mock exam here matches that: 60 questions on a 90-minute timer.

What is the passing score for OTCA?

75%.

How long is the OTCA exam?

90 minutes.

What topics does the OTCA exam cover?

The OTCA curriculum has 4 domains: Fundamentals of Observability (18%), The OpenTelemetry API and SDK (46%), The OpenTelemetry Collector (26%) and Maintaining and Debugging Observability Pipelines (10%).

How difficult is the OTCA exam?

Rated intermediate. Plan 2–8 weeks depending on your background.

How much does the OTCA exam cost?

Pricing changes periodically — check the official CNCF OTCA page at https://www.cncf.io/training/certification/otca/.

Are these OTCA mock exams free?

The sample question on this page is free with no account. Full timed OTCA mocks require a paid plan.

How is this mock exam different from the real OTCA exam?

Original questions written against the official CNCF curriculum — not scraped dumps. Format mirrors the real exam; the real one is proctored, these are self-paced.

How current are the OTCA questions?

The OTCA question bank is checked every month against the official curriculum: the Linux Foundation and CNCF certification pages and the curriculum PDF. The last check was in October 2026. When the curriculum changes, the questions are revised.

Is OTCA required for Golden Kubestronaut?

Yes. OTCA is one of the 16 certifications required for Golden Kubestronaut.

What is the best way to study for OTCA?

Work through the official curriculum in order of domain weight (heaviest first), then run full timed mocks until you hit 85%+ consistently.