PCA Observability Concepts Practice Question
A team is transitioning from a traditional logging system to a metrics-based monitoring approach. Which category of observability data should the team prioritize to specifically identify the 'Latency' golden signal?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Time-series metrics
Latency measures the time it takes to service a request, which is best captured via time-series metrics rather than unstructured logs or traces.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Infrastructure events
Why it's wrong here
Events are point-in-time occurrences, not continuous measurements.
- ✗
Structured application logs
Why it's wrong here
Logs are better for debugging events, not measuring aggregate latency trends.
- ✓
Time-series metrics
Why this is correct
Metrics are the standard for measuring the four golden signals, including latency.
- ✗
Distributed traces
Why it's wrong here
Traces provide context for a single request, but metrics are better for aggregate golden signal monitoring.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official CNCF / Linux Foundation exam blueprint
This PCA practice question is part of Courseiva's free CNCF / Linux Foundation certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCA exam.