PCA Observability Concepts Practice Question
What is the primary difference between a metric and a log?
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
✓
Metrics represent snapshots of state; logs represent discrete events.
Metrics are aggregated, numeric data points over time, while logs are timestamped records of specific events.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Metrics are for debugging; logs are for alerting.
Why it's wrong here
Usually, metrics are for alerting and logs for debugging.
- ✗
Logs are cheaper to store.
Why it's wrong here
Logs are generally more expensive due to volume.
- ✗
Logs are always real-time.
Why it's wrong here
Logs are often buffered or batched.
- ✓
Metrics represent snapshots of state; logs represent discrete events.
Why this is correct
This is the classic distinction between the two.
About these practice questions
One of 304 original PCA practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.