Linux Foundation CNPA Exam - Topic 6 Question 7 Discussion

Actual exam question for Linux Foundation's CNPA exam

Question #: 7
Topic #: 6

[All CNPA Questions]

In the context of OpenTelemetry, which of the following is considered one of the supported signals of observability?

AUser Interface

BNetworking

CTraces

DDatabases

Show Suggested Answer

Suggested Answer: C

OpenTelemetry is a CNCF project providing standardized APIs and SDKs for collecting observability data. Among its supported telemetry signals are metrics, logs, and traces. Option C is correct because traces are a core OpenTelemetry signal type that captures the journey of requests across distributed systems, making them vital for detecting latency, dependencies, and bottlenecks.

Option A (user interface), Option B (networking), and Option D (databases) represent system components or domains, not observability signals. While OpenTelemetry can instrument applications in these areas, it expresses data through its standard telemetry signals.

By supporting consistent collection of logs, metrics, and traces, OpenTelemetry enables observability pipelines to integrate seamlessly with different backends while avoiding vendor lock-in. Traces specifically provide visibility into distributed microservices, which is critical in cloud native environments.

--- CNCF Observability Whitepaper

--- OpenTelemetry CNCF Project Documentation

--- Cloud Native Platform Engineering Study Guide

by Selma at Nov 25, 2025, 09:14 PM

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Elza

9 hours ago

I think C) Traces is the right answer. It's a key part of observability.

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Melvin

5 days ago

B) Networking is important, but C) Traces is the right answer here.

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Hollis

24 days ago

Totally agree, Traces are crucial for observability.

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Apolonia

29 days ago

I thought Networking was also a signal?

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Micaela

1 month ago

C) Traces is the way to go. It's the foundation of observability in OpenTelemetry.

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Benton

1 month ago

Databases? Really? I thought we were talking about observability, not just any old data source.

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Emerson

1 month ago

I'm tracing my way through this question, and C) Traces is the clear winner.

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Fernanda

2 months ago

Traces, metrics, and logs? Sounds like a recipe for a great observability cocktail!

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Na

2 months ago

C) Traces is the correct answer. OpenTelemetry supports observability signals like traces, metrics, and logs.

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Monroe

2 months ago

I practiced a similar question, and I believe traces were mentioned as a key component in OpenTelemetry.

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Aleta

2 months ago

I remember studying about observability signals, and I feel like networking might be related, but I can't recall if it's a primary signal.

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Joaquin

2 months ago

Hmm, I'm a bit stumped on this one. I know OpenTelemetry is about observability, but I'm not sure which specific signals it supports. I'll have to make an educated guess and hope for the best.

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Coleen

3 months ago

I've got a good feeling about C) Traces. OpenTelemetry is all about providing a standardized way to collect and analyze observability data, and traces are a crucial part of that. I'm pretty confident that's the right answer.

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Mira

3 months ago

Okay, let's see. Traces are definitely related to observability, but I'm not sure if they're considered a "signal" in the context of OpenTelemetry. I might need to review the OpenTelemetry documentation to be sure.

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Lashawnda

3 months ago

I think traces are definitely one of the signals, but I'm not entirely sure if they are the only ones.

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Colette

3 months ago

C) Traces is definitely one of the signals!

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Paris

4 months ago

Wait, are we sure about Traces being a signal?

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Timothy

4 months ago

I thought databases could be part of observability, but I don't think they are classified as a signal like traces are.

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Carlota

4 months ago

Hmm, I'm a bit unsure about this one. I know OpenTelemetry deals with observability, but I can't remember if traces are considered one of the supported signals. I'll have to think this through carefully.

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Merrilee

4 months ago

I'm pretty confident that the answer is C) Traces. OpenTelemetry is all about observability, and traces are a key part of that.

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Golda

3 months ago

I agree, traces are essential for observability.

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