最新なGoogle Professional-Cloud-DevOps-Engineer問題集（208題）、真実試験の問題を全部にカバー！

質問 1：
You are using Jenkins to orchestrate your CI/CD pipelines deploying your applications to GKE and on- premises VMs. After expanding your on-premises infrastructure, all resource utilization is normal, but you notice that initiating on-premises deployments is taking longer than expected. You need to accelerate the initiation of on-premises deployments. What should you do?
A. Upgrade your on-premises VMs to have faster CPUs and more memory.
B. Implement a blue-green deployment strategy for your on-premises VMs.
C. Configure Jenkins to use an artifact repository in your on-premises environment.
D. Increase the number of Jenkins executor threads.
正解：C
解説: (Pass4Test メンバーにのみ表示されます)

質問 2：
You are responsible for the reliability of a high-volume enterprise application. A large number of users report that an important subset of the application's functionality - a data intensive reporting feature - is consistently failing with an HTTP 500 error. When you investigate your application's dashboards, you notice a strong correlation between the failures and a metric that represents the size of an internal queue used for generating reports. You trace the failures to a reporting backend that is experiencing high I/O wait times. You quickly fix the issue by resizing the backend's persistent disk (PD). How you need to create an availability Service Level Indicator (SLI) for the report generation feature. How would you define it?
A. As the I/O wait times aggregated across all report generation backends
B. As the proportion of report generation requests that result in a successful response
C. As the reporting backend PD throughout capacity compared to a known-good threshold
D. As the application's report generation queue size compared to a known-good threshold
正解：B
解説: (Pass4Test メンバーにのみ表示されます)

質問 3：
You are configuring Cloud Logging for a new application that runs on a Compute Engine instance with a public IP address. A user-managed service account is attached to the instance. You confirmed that the necessary agents are running on the instance but you cannot see any log entries from the instance in Cloud Logging. You want to resolve the issue by following Google-recommended practices. What should you do?
A. Enable Private Google Access on the subnet that the instance is in.
B. Add the Logs Writer role to the service account.
C. Export the service account key and configure the agents to use the key.
D. Update the instance to use the default Compute Engine service account.
正解：B
解説: (Pass4Test メンバーにのみ表示されます)

質問 4：
You have an application running in Google Kubernetes Engine. The application invokes multiple services per request but responds too slowly. You need to identify which downstream service or services are causing the delay. What should you do?
A. Investigate the Liveness and Readiness probes for each service.
B. Analyze VPC flow logs along the path of the request.
C. Create a Dataflow pipeline to analyze service metrics in real time.
D. Use a distributed tracing framework such as OpenTelemetry or Stackdriver Trace.
正解：C

質問 5：
Your application's performance in Google Cloud has degraded since the last release. You suspect that downstream dependencies might be causing some requests to take longer to complete. You need to investigate the issue with your application to determine the cause. What should you do?
A. Configure Google Cloud Managed Service for Prometheus in your application.
B. Configure Error Reporting in your application.
C. Configure Cloud Trace in your application.
D. Configure Cloud Profiler in your application.
正解：C
解説: (Pass4Test メンバーにのみ表示されます)

質問 6：
Your team uses Cloud Build for all CI/CO pipelines. You want to use the kubectl builder for Cloud Build to deploy new images to Google Kubernetes Engine (GKE). You need to authenticate to GKE while minimizing development effort. What should you do?
A. Assign the Container Developer role to the Cloud Build service account.
B. Create a separate step in Cloud Build to retrieve service account credentials and pass these to kubectl.
C. Specify the Container Developer role for Cloud Build in the cloudbuild.yaml file.
D. Create a new service account with the Container Developer role and use it to run Cloud Build.
正解：A
解説: (Pass4Test メンバーにのみ表示されます)

質問 7：
Your CTO has asked you to implement a postmortem policy on every incident for internal use. You want to define what a good postmortem is to ensure that the policy is successful at your company. What should you do?
Choose 2 answers
A. Ensure that all postmortems include the severity of the incident, how to prevent a future occurrence of the incident. and what caused the incident without naming internal system components.
B. Ensure that all postmortems include what caused the incident, identify the person or team responsible for causing the incident. and how to prevent a future occurrence of the incident.
C. Ensure that all postmortems include what caused the incident, how the incident could have been worse, and how to prevent a future occurrence of the incident.
D. Ensure that all postmortems include all incident participants in postmortem authoring and share postmortems as widely as possible,
E. Ensure that all postmortems include how the incident was resolved and what caused the incident without naming customer information.
正解：C,D
解説: (Pass4Test メンバーにのみ表示されます)

質問 8：
You are performing a semiannual capacity planning exercise for your flagship service. You expect a service user growth rate of 10% month-over-month over the next six months. Your service is fully containerized and runs on Google Cloud Platform (GCP). using a Google Kubernetes Engine (GKE) Standard regional cluster on three zones with cluster autoscaler enabled. You currently consume about 30% of your total deployed CPU capacity, and you require resilience against the failure of a zone. You want to ensure that your users experience minimal negative impact as a result of this growth or as a result of zone failure, while avoiding unnecessary costs. How should you prepare to handle the predicted growth?
A. Because you are deployed on GKE and are using a cluster autoscaler. your GKE cluster will scale automatically, regardless of growth rate.
B. Verity the maximum node pool size, enable a horizontal pod autoscaler, and then perform a load test to verity your expected resource needs.
C. Proactively add 60% more node capacity to account for six months of 10% growth rate, and then perform a load test to make sure you have enough capacity.
D. Because you are at only 30% utilization, you have significant headroom and you won't need to add any additional capacity for this rate of growth.
正解：B
解説: (Pass4Test メンバーにのみ表示されます)