QuestionQ335
Ensuring solution and operations excellenceRefer to the TerramEarth case study for this question.
TerramEarth has a legacy web application that cannot be migrated to the cloud. However, you still want to create a cloud-native way to monitor the application. If the application becomes unavailable, you want the URL to point to a "Site is unavailable" page as quickly as possible. You also want the Ops team to receive a notification about the issue. You need to create a reliable solution at minimum cost. What should you do?
- A Create a scheduled job in Cloud Run to invoke a container every minute. The container will check the application URL. If the application is down, switch the URL to the "Site is unavailable" page, and notify the Ops team.
- B Create a cron job on a Compute Engine VM that runs every minute. The cron job invokes a Python program to check the application URL. If the application is down, switch the URL to the "Site is unavailable" page, and notify the Ops team.
- 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.
- D Use Cloud Error Reporting to check the application URL. If the application is down, switch the URL to the "Site is unavailable" page, and notify the Ops team.
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