Your organization is starting to containerize with Google Cloud. You need a fully managed storage solution for container images and Helm charts. You need to identify a storage solution that has native integration into existing Google Cloud services, including Google Kubernetes Engine (GKE), Cloud Run, VPC Service Controls, and Identity and Access Management (IAM). What should you do?

• A.Configure Artifact Registry as an OCI-based container registry for both Helm charts and container images.
• B.Configure Container Registry as an OCI-based container registry for container images.
• C.Configure an open source container registry server to run in GKE with a restrictive role-based access control (RBAC) configuration.
• D.Use Docker to configure a Cloud Storage driver pointed at the bucket owned by your organization.

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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?

• A.flex/connections/current
• B.tcp_ssl_proxy/new_connections
• C.tcp_ssl_proxy/open_connections
• D.flex/instance/connections/current

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Your team is designing a new application for deployment into Google Kubernetes Engine (GKE). You need to set up monitoring to collect and aggregate various application-level metrics in a centralized location. You want to use Google Cloud Platform services while minimizing the amount of work required to set up monitoring. What should you do?

• A.Publish various metrics from the application directly to the Slackdriver Monitoring API, and then observe these custom metrics in Stackdriver.
• B.Install the Cloud Pub/Sub client libraries, push various metrics from the application to various topics, and then observe the aggregated metrics in Stackdriver.
• C.Install the OpenTelemetry client libraries in the application, configure Stackdriver as the export destination for the metrics, and then observe the application's metrics in Stackdriver.
• D.Emit all metrics in the form of application-specific log messages, pass these messages from the containers to the Stackdriver logging collector, and then observe metrics in Stackdriver.

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Your team has recently deployed an NGINX-based application into Google Kubernetes Engine (GKE) and has exposed it to the public via an HTTP Google Cloud Load Balancer (GCLB) ingress. You want to scale the deployment of the application's frontend using an appropriate Service Level Indicator (SLI). What should you do?

• A.Configure the vertical pod autoscaler in GKE and enable the cluster autoscaler to scale the cluster as pods expand.
• B.Install the Stackdriver custom metrics adapter and configure a horizontal pod autoscaler to use the number of requests provided by the GCLB.
• C.Expose the NGINX stats endpoint and configure the horizontal pod autoscaler to use the request metrics exposed by the NGINX deployment.
• D.Configure the horizontal pod autoscaler to use the average response time from the Liveness and Readiness probes.

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Your company follows Site Reliability Engineering principles. You are writing a postmortem for an incident, triggered by a software change, that severely affected users. You want to prevent severe incidents from happening in the future. What should you do?

• A.Identify engineers responsible for the incident and escalate to their senior management.
• B.Ensure that test cases that catch errors of this type are run successfully before new software releases.
• C.Follow up with the employees who reviewed the changes and prescribe practices they should follow in the future.
• D.Design a policy that will require on-call teams to immediately call engineers and management to discuss a plan of action if an incident occurs.

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