PCA Instrumentation And Exporters Practice Question
Which TWO of the following are true about the Gauge metric type?
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
✓
Used for memory usage
Gauges allow values to fluctuate and are often used for memory, CPU, or queue length.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Values can only increase
Why it's wrong here
That's a counter.
- ✗
Calculates quantiles
Why it's wrong here
Histograms/Summaries do that.
- ✗
Values are always integers
Why it's wrong here
They are floating-point values.
- ✓
Used for memory usage
Why this is correct
Correct.
- ✓
Values can increase and decrease
Why this is correct
Correct.
About these practice questions
Courseiva writes every PCA question from scratch — 304 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.