Google Professional Cloud DevOps Engineer Exam Questions Instant Access

Question 1

[Building and implementing service monitoring strategies]

You have migrated an e-commerce application to Google Cloud Platform (GCP). You want to prepare the application for the upcoming busy season. What should you do first to prepare for the busy season?

ALoad teat the application to profile its performance for scaling.

BEnable AutoScaling on the production clusters, in case there is growth.

CPre-provision double the compute power used last season, expecting growth.

DCreate a runbook on inflating the disaster recovery (DR) environment if there is growth.

Answer : A

Question 2

[Building and implementing service monitoring strategies]

You support an application running on App Engine. The application is used globally and accessed from various device types. You want to know the number of connections. You are using Stackdriver Monitoring for App Engine. What metric should you use?

Aflex/connections/current

Btcp_ssl_proxy/new_connections

Ctcp_ssl_proxy/open_connections

Dflex/instance/connections/current

Answer : A

Question 3

[Building and implementing CI/CD pipelines for a service]

Your organization uses a change advisory board (CAB) to approve all changes to an existing service You want to revise this process to eliminate any negative impact on the software delivery performance What should you do?

Choose 2 answers

AReplace the CAB with a senior manager to ensure continuous oversight from development to deployment

BLet developers merge their own changes but ensure that the team's deployment platform can roll back changes if any issues are discovered

CMove to a peer-review based process for individual changes that is enforced at code check-in time and supported by automated tests

DBatch changes into larger but less frequent software releases

EEnsure that the team's development platform enables developers to get fast feedback on the impact of their changes

Answer : C, E

Question 4

[Building and implementing CI/CD pipelines for a service]

You are reviewing your deployment pipeline in Google Cloud Deploy You must reduce toil in the pipeline and you want to minimize the amount of time it takes to complete an end-to-end deployment What should you do?

Choose 2 answers

ACreate a trigger to notify the required team to complete the next step when manual intervention is required

BDivide the automation steps into smaller tasks

CUse a script to automate the creation of the deployment pipeline in Google Cloud Deploy

DAdd more engineers to finish the manual steps.

EAutomate promotion approvals from the development environment to the test environment

Answer : A, E

Question 5

[Applying Site Reliability Engineering (SRE) principles to a service]

You support a high-traffic web application and want to ensure that the home page loads in a timely manner. As a first step, you decide to implement a Service Level Indicator (SLI) to represent home page request latency with an acceptable page load time set to 100 ms. What is the Google-recommended way of calculating this SLI?

ABuckelize Ihe request latencies into ranges, and then compute the percentile at 100 ms.

BBucketize the request latencies into ranges, and then compute the median and 90th percentiles.

CCount the number of home page requests that load in under 100 ms, and then divide by the total number of home page requests.

DCount the number of home page requests that load in under 100 ms. and then divide by the total number of all web application requests.

Answer : C

Question 6

[Building and implementing CI/CD pipelines for a service]

You are designing a deployment technique for your applications on Google Cloud. As part Of your deployment planning, you want to use live traffic to gather performance metrics for new versions Ofyour applications. You need to test against the full production load before your applications are launched. What should you do?

AUse A/B testing with blue/green deployment.

BUse shadow testing with continuous deployment.

CUse canary testing with continuous deployment.

DUse canary testing with rolling updates deployment,

Answer : B

Question 7

[Building and implementing service monitoring strategies]

You support a production service that runs on a single Compute Engine instance. You regularly need to spend time on recreating the service by deleting the crashing instance and creating a new instance based on the relevant image. You want to reduce the time spent performing manual operations while following Site Reliability Engineering principles. What should you do?

AFile a bug with the development team so they can find the root cause of the crashing instance.

BCreate a Managed Instance Group with a single instance and use health checks to determine the system status.

CAdd a Load Balancer in front of the Compute Engine instance and use health checks to determine the system status.

DCreate a Stackdriver Monitoring dashboard with SMS alerts to be able to start recreating the crashed instance promptly after it has crashed.

Answer : B