You run a web app on Compute Engine and need automatic notifications to support if user latency is high for at least 5 minutes, with no development effort. What should you do?

Creating a Cloud Monitoring alerting policy is the most efficient and direct solution. Cloud Monitoring can automatically detect when HTTP response latency exceeds a predefined threshold for a specified duration (e.g., 5 minutes) and then trigger a notification to your support team, requiring no development effort. Exporting metrics to BigQuery and using Looker Studio provides visualization but doesn't offer automatic alerting. Implementing an App Engine service involves custom development, which the question explicitly states should be avoided. Manually watching a dashboard and notifying support is reactive and not automated, failing to meet the requirement for automatic notifications.