5.1 Advising Development and Operation Teams to Ensure the Successful Deployment of the Solution PROFESSIONAL-CLOUD-ARCHITECT Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A media company exposes a public API through Apigee. The API is currently unversioned, and the development team is about to introduce breaking changes to the response schema. The company has a large number of external partners who integrate with the API, and they cannot afford to break existing integrations. The operations team also needs to ensure that the new version does not degrade performance for existing consumers. What should the team do?

   • ACreate a new API proxy version (e.g., /v2) and gradually shift traffic to it while monitoring error rates and latency
   • BUse Apigee's rate-limiting policy to throttle all traffic to the new version until partners upgrade
   • CDeploy the new schema to the same proxy and use a JavaScript policy to transform responses based on a custom header
   • DUpdate the existing API proxy in place and ask partners to adjust their clients to the new schema
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2. 22application · medium

   A DevOps engineer is troubleshooting a performance issue in a production application running on Compute Engine. The application is experiencing high latency, and the engineer suspects the VM's CPU is the bottleneck. The engineer wants to get a quick recommendation on how to right-size the VM without manually analyzing all the metrics. What should the engineer use?

   • AGemini Cloud Assist to get a recommendation for the appropriate machine type based on the workload
   • BCloud Logging to review application logs for errors
   • CCloud Monitoring to view CPU utilization and manually select a new machine type
   • DCloud Profiler to identify which functions are consuming the most CPU
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4. 23foundation · easy

   Which Google Cloud service is a fully managed CI/CD platform that can automatically build, test, and deploy applications from a repository?

   • ADeployment Manager
   • BCloud Build
   • CCloud Functions
   • DCloud Run
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5. 24expert · hard

   A company is migrating a 2 TB MySQL database from on-premises to Cloud SQL. The database is used by a critical application, and the migration must be completed with minimal downtime. The team has set up a VPN connection. They plan to use Database Migration Service (DMS). During the final cutover, they need to ensure that no data is lost. What should they do?

   • AUse Storage Transfer Service to copy the database files to Cloud Storage and then import them
   • BStop the application, perform a final DMS sync, and then switch the application to Cloud SQL
   • CUse Migrate for Compute Engine to move the entire database server to a VM
   • DSwitch the application to Cloud SQL without stopping it, relying on DMS to sync the final changes
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6. 25application · medium

   A fintech company is launching a new public API for third-party developers. They want to ensure that the API is reliable and that a single developer cannot consume all the resources. They also want to track usage patterns to understand which endpoints are most popular. What should they configure in Apigee?

   • AA VerifyAPIKey policy and a JSONThreatProtection policy
   • BA SpikeArrest policy and a JavaScript policy
   • CA Quota policy and analytics
   • DA RateLimit policy and a KeyValueMap policy
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