Google PCA Practice Question: Managing and Provisioning a Solution Infrastructure
You want to monitor the latency of an application running on Compute Engine and create an alert if the 99th percentile latency exceeds 500ms for more than 5 minutes. Which approach should you use?
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
✓
Create a Metric Threshold alert using the 'Latency' metric with a percentile alignment
Cloud Monitoring can create alerting policies based on distribution metrics (like latency) using percentile aggregations. You can define a metric threshold with a rolling window.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Cloud Trace to analyze latency and set a trace-based alert
Why it's wrong here
Cloud Trace is for tracing, not real-time alerting.
- ✗
Use Error Reporting to capture latency errors
Why it's wrong here
Error Reporting is for exceptions, not latency.
- ✓
Create a Metric Threshold alert using the 'Latency' metric with a percentile alignment
Why this is correct
Correct. Cloud Monitoring supports distribution metrics with percentile alignments.
- ✗
Create a log-based metric from application logs and set an alert on that metric
Why it's wrong here
You could do this, but Cloud Monitoring natively supports distribution metrics without logs.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
CAN
A CAN (Controller Area Network) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other without a host computer.
Key term
Alerting policy
An alerting policy is a set of rules that defines when to send notifications about a system condition that needs attention.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA 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 PCA exam.