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TerramEarth manufactures heavy equipment for the mining and agricultural industries, and they have a legacy web application that cannot be migrated to the cloud. The application is critical for their operations, and they need a cloud-native way to monitor it. In case the application goes down, the URL should quickly point to a 'Site is unavailable' page, and the Ops team should be notified immediately. Considering the need for reliability and cost-effectiveness, what solution should TerramEarth implement?
TerramEarth manufactures heavy equipment for the mining and agricultural industries, and they have a legacy web application that cannot be migrated to the cloud. The application is critical for their operations, and they need a cloud-native way to monitor it. In case the application goes down, the URL should quickly point to a 'Site is unavailable' page, and the Ops team should be notified immediately. Considering the need for reliability and cost-effectiveness, what solution should TerramEarth implement?
Explanation:
The correct answer is C: Create a Cloud Monitoring uptime check to validate the application URL. If it fails, put a message in a Pub/Sub queue that triggers a Cloud Function to switch the URL to the 'Site is unavailable' page, and notify the Ops team. This solution leverages Google Cloud's native services to monitor the application's uptime in a cloud-native way. Cloud Monitoring can effectively check the application's availability, and the use of Pub/Sub and Cloud Functions allows for an automated and scalable response to any downtime. Moreover, this approach is cost-effective as it uses managed services, which reduces the need for maintaining custom scripts or additional infrastructure.