PCDOE Practice Question: Applying site reliability engineering practices
You are designing alerting policies for a microservice architecture. Which TWO metrics are most suitable for triggering a page to the on-call engineer?
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
✓
Latency P99 exceeding the SLO target for 5 minutes.
Error budget burn rate and high latency (P99 breaching SLO) directly indicate customer-facing issues and require immediate attention. CPU and request count are less critical.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Latency P99 exceeding the SLO target for 5 minutes.
Why this is correct
Breaching latency SLO directly impacts users.
- ✓
Error budget burn rate exceeding 10x in 1 hour.
Why this is correct
High burn rate indicates fast consumption of error budget, requiring action.
- ✗
Number of requests per second.
Why it's wrong here
Request volume alone does not indicate a problem.
- ✗
CPU utilization at 50%.
Why it's wrong here
50% utilization is not critical; might be normal.
- ✗
Memory usage trend.
Why it's wrong here
Memory trends are not immediate page triggers unless critical.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCDOE practice question is part of Courseiva's free Google Cloud 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 PCDOE exam.