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Passed Exam Today Professional-Cloud-DevOps-Engineer

Google Cloud Certified - Professional Cloud DevOps Engineer Exam Questions and Answers

Question 33

You are performing a semi-annual capacity planning exercise for your flagship service You expect a service user growth rate of 10% month-over-month for the next six months Your service is fully containerized and runs on a Google Kubemetes Engine (GKE) standard cluster across three zones with cluster autoscaling 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 o' as a result of zone failure while you avoid unnecessary costs How should you prepare to handle the predicted growth?

Options:

A.

Verify the maximum node pool size enable a Horizontal Pod Autoscaler and then perform a load lest to verify your expected resource needs

B.

Because you deployed the service on GKE and are using a cluster autoscaler your GKE cluster will scale automatically regardless of growth rate

C.

Because you are only using 30% of deployed CPU capacity there is significant headroom and you do not need to add any additional capacity for this rate of growth

D.

Proactively add 80% more node capacity to account for six months of 10% growth rate and then perform a load test to ensure that you have enough capacity

Question 34

You encountered a major service outage that affected all users of the service for multiple hours. After several hours of incident management, the service returned to normal, and user access was restored. You need to provide an incident summary to relevant stakeholders following the Site Reliability Engineering recommended practices. What should you do first?

Options:

A.

Call individual stakeholders lo explain what happened.

B.

Develop a post-mortem to be distributed to stakeholders.

C.

Send the Incident State Document to all the stakeholders.

D.

Require the engineer responsible to write an apology email to all stakeholders.

Question 35

You support a Node.js application running on Google Kubernetes Engine (GKE) in production. The application makes several HTTP requests to dependent applications. You want to anticipate which dependent applications might cause performance issues. What should you do?

Options:

A.

Instrument all applications with Stackdriver Profiler.

B.

Instrument all applications with Stackdriver Trace and review inter-service HTTP requests.

C.

Use Stackdriver Debugger to review the execution of logic within each application to instrument all applications.

D.

Modify the Node.js application to log HTTP request and response times to dependent applications. Use Stackdriver Logging to find dependent applications that are performing poorly.

Question 36

You are writing a postmortem for an incident that severely affected users. You want to prevent similar incidents in the future. Which two of the following sections should you include in the postmortem? (Choose two.)

Options:

A.

An explanation of the root cause of the incident

B.

A list of employees responsible for causing the incident

C.

A list of action items to prevent a recurrence of the incident

D.

Your opinion of the incident’s severity compared to past incidents

E.

Copies of the design documents for all the services impacted by the incident