PCA Instrumentation And Exporters Practice Question
Which THREE of the following are common use cases for the node_exporter?
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
✓
Tracking memory consumption.
node_exporter is designed to expose hardware and OS-level metrics such as CPU usage, memory usage, and filesystem occupancy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Tracking memory consumption.
Why this is correct
node_exporter collects memory usage stats.
- ✗
Scraping application-specific business logic.
Why it's wrong here
Application metrics are handled by client libraries, not node_exporter.
- ✓
Monitoring CPU utilization.
Why this is correct
node_exporter collects granular CPU metrics.
- ✓
Checking filesystem mount points and usage.
Why this is correct
node_exporter provides comprehensive filesystem metrics.
- ✗
Executing SQL queries on a database.
Why it's wrong here
Database queries require a dedicated SQL exporter.
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.