PCA Observability Concepts Practice Question
A system is experiencing high latency. You need to identify if the latency is caused by external dependencies. Which of the Four Golden Signals is most relevant for this discovery?
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
✓
Latency
Latency measures the time it takes to service a request, which directly indicates performance issues in dependencies.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Latency
Why this is correct
Latency measures time spent per request.
- ✗
Errors
Why it's wrong here
Errors measure failures, not speed.
- ✗
Saturation
Why it's wrong here
Saturation measures how 'full' the service is.
- ✗
Traffic
Why it's wrong here
Traffic measures demand, not performance speed.
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.