Question 1,303 of 1,446
PCDE Practice Question: Manage a solution that can span multiple database technologies
A Cloud SQL for MySQL instance is running low on disk space. You have enabled automatic storage increase, but you also want to be proactively alerted when disk usage exceeds 80%. Which steps should you take?
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 alert on the metric 'disk/utilization' with a threshold of 80%.
Cloud Monitoring allows you to create alerting policies based on metrics. The disk usage metric for Cloud SQL is available, and you can set a threshold of 80%. Automatic storage increase is a separate setting that automatically increases storage when needed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set the storage size to a fixed large value to avoid alerts.
Why it's wrong here
This does not alert on usage and may lead to wasted cost.
- ✗
Create a Cloud Logging sink for disk usage logs and set up a Pub/Sub notification.
Why it's wrong here
Disk usage is a metric, not a log. Cloud Monitoring is the appropriate tool for metric-based alerting.
- ✓
Create a Cloud Monitoring alert on the metric 'disk/utilization' with a threshold of 80%.
Why this is correct
This is the correct way to get an alert when disk usage exceeds 80%.
- ✗
Use Cloud SQL's built-in email notifications for disk usage.
Why it's wrong here
Cloud SQL does not have built-in email notifications for disk usage; you must use Cloud Monitoring.
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Last reviewed: Jul 4, 2026
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