Question 1

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?

Accepted Answer

Correct answer: C

Question 2

You use Cloud Build to build your application. You want to reduce the build time while minimizing cost and development effort. What should you do?

Accepted Answer

https://cloud.google.com/storage/docs/best-practices
https://cloud.google.com/build/docs/speeding-up-builds#caching_directories_with_google_cloud_storage Caching directories with Google Cloud Storage To
increase the speed of a build, reuse the results from a
previous build. You can copy the results of a previous build to a Google Cloud Storage bucket, use the results for faster calculation, and then copy the new results
back to the bucket. Use this method when your build takes a long time and produces a small number of files that does not take time to copy to and from Google
Cloud Storage.
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Question 3

Your application images are built using Cloud Build and pushed to Google Container Registry (GCR). You want to be able to specify a particular version of your
application for deployment based on the release version tagged in source control. What should you do when you push the image?

Accepted Answer

https://cloud.google.com/container-registry/docs/pushing-and-pulling

Question 4

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?

Accepted Answer

https://sre.google/workbook/implementing-slos/
In the SRE principles book, it's recommended treating the SLI as the ratio of two numbers: the number of good events divided by the total number of events. For
example: Number of successful HTTP requests / total HTTP requests (success rate)

Question 5

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?

Accepted Answer

Correct answer: B

Question 6

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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?

Accepted Answer

https://cloud.google.com/monitoring/api/metrics_gcp#gcp-appengine

Question 7

You support a popular mobile game application deployed on Google Kubernetes Engine (GKE) across several Google Cloud regions. Each region has multiple
Kubernetes clusters. You receive a report that none of the users in a specific region can connect to the application. You want to resolve the incident while following
Site Reliability Engineering practices. What should you do first?

Accepted Answer

Google always aims to first stop the impact of an incident, and then find the root cause (unless the root cause just happens to be identified early on).

Question 8

You have a set of applications running on a Google Kubernetes Engine (GKE) cluster, and you are using Stackdriver Kubernetes Engine Monitoring. You are
bringing a new containerized application required by your company into production. This application is written by a third party and cannot be modified or
reconfigured. The application writes its log information to /var/log/app_messages.log, and you want to send these log entries to Stackdriver Logging. What should
you do?

Accepted Answer

https://cloud.google.com/architecture/customizing-stackdriver-logs-fluentd
Besides the list of default logs that the Logging agent streams by default, you can customize the Logging agent to send additional logs to Logging or to adjust
agent settings by adding input configurations. The configuration definitions in these sections apply to the fluent-plugin-google-cloud output plugin only and specify
how logs are transformed and ingested into Cloud Logging. https://cloud.google.com/logging/docs/agent/logging/configuration#configure

Question 9

Some of your production services are running in Google Kubernetes Engine (GKE) in the eu-west-1 region. Your build system runs in the us-west-1 region. You
want to push the container images from your build system to a scalable registry to maximize the bandwidth for transferring the images to the cluster. What should
you do?

Accepted Answer

Hostname Storage location gcr.io Stores images in data centers in the United States asia.gcr.io Stores images in data centers in Asia eu.gcr.io Stores images in
data centers within member states of the European Union us.gcr.io Stores images in data centers in the United States

Question 10

You need to run a business-critical workload on a fixed set of Compute Engine instances for several months. The workload is stable with the exact amount of
resources allocated to it. You want to lower the costs for this workload without any performance implications. What should you do?

Accepted Answer

Correct answer: A