Manage a solution that can span multiple database technologies →mediumMultiple SelectObjective-mapped
PCDE Practice Question: Manage a solution that can span multiple database technologies
A Cloud SQL for MySQL instance has a read replica in a different region. The team wants to monitor replication lag and receive alerts if lag exceeds 60 seconds. Which two steps should they take? (Choose TWO.)
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 Cloud Monitoring alerting policy with a condition on 'cloudsql.googleapis.com/database/replication/replica_lag' with threshold >60s.
The replication_lag metric is available in Cloud Monitoring. An alerting policy based on this metric with a threshold of 60 seconds will trigger notifications when lag exceeds that value.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a Cloud Monitoring alerting policy with a condition on 'cloudsql.googleapis.com/database/replication/replica_lag' with threshold >60s.
Why this is correct
This is the correct metric and threshold for alerting on lag.
- ✗
Configure a Cloud Function to query the replica status every minute.
Why it's wrong here
Custom solutions are not necessary; Cloud Monitoring provides built-in alerting.
- ✗
Set up a Cloud Scheduler job to run a query on the replica to check lag.
Why it's wrong here
Overly complex and not recommended.
- ✗
Promote the replica to standalone if lag exceeds 60 seconds.
Why it's wrong here
Automated promotion is not a monitoring step; it's a recovery action.
- ✓
Enable the 'replication_lag' metric in Cloud SQL monitoring.
Why this is correct
This metric is available by default once a replica is created.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCDE 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 PCDE exam.