PCA Prometheus Fundamentals Practice Question
When using 'remote_write', how does Prometheus ensure data delivery?
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
✓
It uses a retry mechanism with exponential backoff
Prometheus uses an internal queue and retry logic to ensure delivery to remote endpoints.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It uses a retry mechanism with exponential backoff
Why this is correct
Remote write implements retries to handle temporary network issues.
- ✗
It writes to the WAL first
Why it's wrong here
While WAL is for local durability, remote_write has its own buffering.
- ✗
It disables local storage
Why it's wrong here
Local storage remains active unless specifically disabled.
- ✗
It requires manual intervention on failure
Why it's wrong here
Prometheus manages remote write retries automatically.
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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.