PCA Observability Concepts Practice Question
In the context of the Four Golden Signals, what does 'Saturation' measure?
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
✓
The amount of queued work.
Saturation measures how 'full' a service is, typically defined by identifying the most constrained resource (e.g., CPU, RAM, or disk IO).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The number of 5xx errors.
Why it's wrong here
This is errors.
- ✓
The amount of queued work.
Why this is correct
Queued work indicates resource contention.
- ✗
The speed of the network.
Why it's wrong here
This is latency or throughput.
- ✗
The number of successful requests.
Why it's wrong here
This is traffic.
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.