4.3 Troubleshooting and Observability PROFESSIONAL-CLOUD-DEVELOPER Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which Cloud Monitoring resource is used to represent a single measurable value (e.g., request count or latency) that an application reports?

   • AMetric
   • BNotification channel
   • CDashboard
   • DAlerting policy
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2. 2foundation · easy

   In Cloud Trace, what is a 'trace'?

   • AA single operation's duration measurement
   • BA metric that tracks request count
   • CA log entry that records an application error
   • DA collection of spans that represent a single request's journey through a distributed system
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4. 3foundation · easy

   In Error Reporting, what does 'grouping' of errors mean?

   • ACombining similar errors into a single issue for easier management
   • BSorting errors by severity level
   • CDeleting duplicate error entries from the log
   • DAssigning errors to different teams for resolution
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5. 4expert · hard

   A ride-sharing company has a distributed system with a 'driver matching' service that calls a 'location' service and a 'payment' service. Users report that ride requests sometimes take over 30 seconds. The developer has Cloud Trace enabled, but the traces show that the 'location' service is slow only when the 'payment' service is also slow. The developer suspects a dependency issue. What should the developer do to confirm this?

   • AUse Cloud Logging to search for logs from the 'location' service and look for error messages.
   • BCreate a Cloud Monitoring dashboard showing the CPU utilization of both services.
   • CAnalyze the trace spans to see if the 'location' service span overlaps with the 'payment' service span, indicating a synchronous dependency.
   • DCheck Error Reporting for exceptions from the 'payment' service.
   Reveal Solution Discussion Select an answer first
6. 5expert · hard

   A telecommunications company runs a microservices-based billing system. A customer reports a billing error, and the developer needs to trace the request through multiple services. The application is instrumented with Cloud Trace, but the trace ID is not available in the customer's report. The developer has the customer's account ID and the timestamp of the error. What should the developer do to find the trace?

   • AUse Cloud Monitoring to find the trace by looking at the request latency for the account ID.
   • BUse Cloud Trace to search for traces by account ID.
   • CCheck Error Reporting for errors related to the account ID.
   • DUse Cloud Logging to search for logs containing the account ID and timestamp, then extract the trace ID from those logs.
   Reveal Solution Discussion Select an answer first