4.5 Troubleshooting Issues PROFESSIONAL-CLOUD-DEVOPS-ENGINEER Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   A DevOps engineer notices that Cloud Monitoring is not receiving metrics from a VM. Which troubleshooting step should be performed first?

   • AVerify that the Cloud Monitoring agent is running on the VM.
   • BCheck the VM's firewall rules.
   • CRestart the VM.
   • DIncrease the VM's machine type.
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   You are setting up a new log-based alert in Cloud Monitoring. The alert is based on a query that counts ERROR logs from a specific service. You have verified that the service is generating ERROR logs, but the alert never fires. What is the most likely cause?

   • AThe logs are being exported to BigQuery, so they are no longer available in Cloud Logging.
   • BThe Cloud Monitoring API is disabled in the project, preventing alerting.
   • CThe alert's notification channel is misconfigured, so the alert fires but the notification is not delivered.
   • DThe log-based alert's query is not matching the logs because of a filter syntax error or a mismatch in the log field names.
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

   A CI/CD pipeline fails during the deployment step. Which log or artifact is most likely to contain the error that caused the deployment failure?

   • AThe unit test results from the test stage
   • BThe application's source code comments
   • CThe deployment logs from the deployment tool
   • DThe project's IAM policy
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5. 24expert · hard

   A critical application is running on a single Compute Engine VM. The VM's disk is 20 GB and is 95% full. The application writes logs to the disk. You need to prevent the application from failing due to disk exhaustion, but you cannot stop the VM or change the application's logging behavior. You have a limited budget and need a quick fix. What should you do?

   • ACreate a snapshot of the disk, delete the VM, and recreate it with a larger boot disk.
   • BResize the existing persistent disk to a larger size, such as 50 GB, and then grow the file system.
   • CEnable log rotation in the operating system to automatically delete old log files.
   • DAttach a new persistent disk to the VM, mount it, and configure the application to write logs to the new disk.
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   A database server is experiencing slow query performance. Which metric is most directly correlated with a CPU bottleneck?

   • AHigh disk I/O latency
   • BHigh CPU utilization
   • CHigh network traffic
   • DLow memory usage
   Reveal Solution Discussion Select an answer first