[Q20-Q41] Free Professional-Cloud-DevOps-Engineer Questions for Google Professional-Cloud-DevOps-Engineer Exam [May-2023]

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Free Professional-Cloud-DevOps-Engineer Questions for Google Professional-Cloud-DevOps-Engineer Exam [May-2023]

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The certification exam is a performance-based exam that consists of tasks that the candidate needs to complete within a set time frame. The exam is designed to test the candidate’s ability to apply their knowledge of GCP and DevOps principles to real-world scenarios. The exam covers a wide range of topics, including building and deploying applications on GCP, designing and implementing continuous delivery pipelines, configuring monitoring and logging systems, and managing GCP resources using automation tools.

NEW QUESTION 20
You are developing a strategy for monitoring your Google Cloud Platform (GCP) projects in production using Stackdriver Workspaces. One of the requirements is to be able to quickly identify and react to production environment issues without false alerts from development and staging projects. You want to ensure that you adhere to the principle of least privilege when providing relevant team members with access to Stackdriver Workspaces. What should you do?

Grant relevant team members read access to all GCP production projects. Create Stackdriver workspaces inside each project.

Grant relevant team members the Project Viewer IAM role on all GCP production projects. Create Slackdriver workspaces inside each project.

Choose an existing GCP production project to host the monitoring workspace. Attach the production projects to this workspace. Grant relevant team members read access to the Stackdriver Workspace.

Create a new GCP monitoring project, and create a Stackdriver Workspace inside it. Attach the production projects to this workspace. Grant relevant team members read access to the Stackdriver Workspace.

NEW QUESTION 21
You manage an application that is writing logs to Stackdriver Logging. You need to give some team members the ability to export logs. What should you do?

Grant the team members the IAM role of logging.configWriter on Cloud IAM.

Configure Access Context Manager to allow only these members to export logs.

Create and grant a custom IAM role with the permissions logging.sinks.list and logging.sink.get.

Create an Organizational Policy in Cloud IAM to allow only these members to create log exports.

NEW QUESTION 22
You support a high-traffic web application with a microservice architecture. The home page of the application displays multiple widgets containing content such as the current weather, stock prices, and news headlines. The main serving thread makes a call to a dedicated microservice for each widget and then lays out the homepage for the user. The microservices occasionally fail; when that happens, the serving thread serves the homepage with some missing content. Users of the application are unhappy if this degraded mode occurs too frequently, but they would rather have some content served instead of no content at all. You want to set a Service Level Objective (SLO) to ensure that the user experience does not degrade too much. What Service Level Indicator {SLI) should you use to measure this?

A quality SLI: the ratio of non-degraded responses to total responses

An availability SLI: the ratio of healthy microservices to the total number of microservices

A freshness SLI: the proportion of widgets that have been updated within the last 10 minutes

A latency SLI: the ratio of microservice calls that complete in under 100 ms to the total number of microservice calls

NEW QUESTION 23
You are managing an application that exposes an HTTP endpoint without using a load balancer. The latency of the HTTP responses is important for the user experience. You want to understand what HTTP latencies all of your users are experiencing. You use Stackdriver Monitoring. What should you do?

* In your application, create a metric with a metricKind set to DELTA and a valueType set to DOUBLE.
* In Stackdriver’s Metrics Explorer, use a Slacked Bar graph to visualize the metric.

* In your application, create a metric with a metricKind set to CUMULATIVE and a valueType set to DOUBLE.
* In Stackdriver’s Metrics Explorer, use a Line graph to visualize the metric.

* In your application, create a metric with a metricKind set to gauge and a valueType set to distribution.
* In Stackdriver’s Metrics Explorer, use a Heatmap graph to visualize the metric.

* In your application, create a metric with a metricKind. set toMETRlc_KIND_UNSPECIFIEDanda valueType set to INT64.
* In Stackdriver’s Metrics Explorer, use a Stacked Area graph to visualize the metric.

NEW QUESTION 24
You are managing an application that exposes an HTTP endpoint without using a load balancer. The latency of the HTTP responses is important for the user experience. You want to understand what HTTP latencies all of your users are experiencing. You use Stackdriver Monitoring. What should you do?

In your application, create a metric with a metricKind set to DELTA and a valueType set to DOUBLE.
* In Stackdriver’s Metrics Explorer, use a Slacked Bar graph to visualize the metric.

In your application, create a metric with a metricKind set to CUMULATIVE and a valueType set to DOUBLE.
* In Stackdriver’s Metrics Explorer, use a Line graph to visualize the metric.

In your application, create a metric with a metricKind set to gauge and a valueType set to distribution.
* In Stackdriver’s Metrics Explorer, use a Heatmap graph to visualize the metric.

In your application, create a metric with a metricKind. set toMETRlc_KIND_UNSPECIFIEDanda valueType set to INT64.
* In Stackdriver’s Metrics Explorer, use a Stacked Area graph to visualize the metric.

NEW QUESTION 25
You support the backend of a mobile phone game that runs on a Google Kubernetes Engine (GKE) cluster. The application is serving HTTP requests from users. You need to implement a solution that will reduce the network cost. What should you do?

Configure the VPC as a Shared VPC Host project.

Configure your network services on the Standard Tier.

Configure your Kubernetes duster as a Private Cluster.

Configure a Google Cloud HTTP Load Balancer as Ingress.

NEW QUESTION 26
You are part of an organization that follows SRE practices and principles. You are taking over the management of a new service from the Development Team, and you conduct a Production Readiness Review (PRR). After the PRR analysis phase, you determine that the service cannot currently meet its Service Level Objectives (SLOs). You want to ensure that the service can meet its SLOs in production. What should you do next?

Adjust the SLO targets to be achievable by the service so you can bring it into production.

Notify the development team that they will have to provide production support for the service.

Identify recommended reliability improvements to the service to be completed before handover.

Bring the service into production with no SLOs and build them when you have collected operational data.

NEW QUESTION 27
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?

Purchase Committed Use Discounts.

Migrate the instances to a Managed Instance Group.

Convert the instances to preemptible virtual machines.

Create an Unmanaged Instance Group for the instances used to run the workload.

NEW QUESTION 28
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?

Configure the horizontal pod autoscaler to use the average response time from the Liveness and Readiness probes.

Configure the vertical pod autoscaler in GKE and enable the cluster autoscaler to scale the cluster as pods expand.

Install the Stackdriver custom metrics adapter and configure a horizontal pod autoscaler to use the number of requests provided by the GCLB.

Expose the NGINX stats endpoint and configure the horizontal pod autoscaler to use the request metrics exposed by the NGINX deployment.

NEW QUESTION 29
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?

Use Cloud Storage to cache intermediate artifacts.

Run multiple Jenkins agents to parallelize the build.

Use multiple smaller build steps to minimize execution time.

Use larger Cloud Build virtual machines (VMs) by using the machine-type option.

NEW QUESTION 30
You support an application running on GCP and want to configure SMS notifications to your team for the most critical alerts in Stackdriver Monitoring. You have already identified the alerting policies you want to configure this for. What should you do?

Download and configure a third-party integration between Stackdriver Monitoring and an SMS gateway. Ensure that your team members add their SMS/phone numbers to the external tool.

Select the Webhook notifications option for each alerting policy, and configure it to use a third-party integration tool. Ensure that your team members add their SMS/phone numbers to the external tool.

Ensure that your team members set their SMS/phone numbers in their Stackdriver Profile. Select the SMS notification option for each alerting policy and then select the appropriate SMS/phone numbers from the list.

Configure a Slack notification for each alerting policy. Set up a Slack-to-SMS integration to send SMS messages when Slack messages are received. Ensure that your team members add their SMS/phone numbers to the external integration.

NEW QUESTION 31
You support an application running on GCP and want to configure SMS notifications to your team for the most critical alerts in Stackdriver Monitoring. You have already identified the alerting policies you want to configure this for. What should you do?

Download and configure a third-party integration between Stackdriver Monitoring and an SMS gateway. Ensure that your team members add their SMS/phone numbers to the external tool.

NEW QUESTION 32
You support an application that stores product information in cached memory. For every cache miss, an entry is logged in Stackdriver Logging. You want to visualize how often a cache miss happens over time. What should you do?

Link Stackdriver Logging as a source in Google Data Studio. Filler (he logs on the cache misses.

Configure Stackdriver Profiler to identify and visualize when the cache misses occur based on the logs.

Create a logs-based metric in Stackdriver Logging and a dashboard for that metric in Stackdriver Monitoring.

Configure BigOuery as a sink for Stackdriver Logging. Create a scheduled query to filter the cache miss logs and write them to a separate table

NEW QUESTION 33
You use Spinnaker to deploy your application and have created a canary deployment stage in the pipeline. Your application has an in-memory cache that loads objects at start time. You want to automate the comparison of the canary version against the production version. How should you configure the canary analysis?

Compare the canary with a new deployment of the current production version.

Compare the canary with a new deployment of the previous production version.

Compare the canary with the existing deployment of the current production version.

Compare the canary with the average performance of a sliding window of previous production versions.

NEW QUESTION 34
Your application runs on Google Cloud Platform (GCP). You need to implement Jenkins for deploying application releases to GCP. You want to streamline the release process, lower operational toil, and keep user data secure. What should you do?

Implement Jenkins on local workstations.

Implement Jenkins on Kubernetes on-premises

Implement Jenkins on Google Cloud Functions.

Implement Jenkins on Compute Engine virtual machines.

NEW QUESTION 35
Your product is currently deployed in three Google Cloud Platform (GCP) zones with your users divided between the zones. You can fail over from one zone to another, but it causes a 10-minute service disruption for the affected users. You typically experience a database failure once per quarter and can detect it within five minutes. You are cataloging the reliability risks of a new real-time chat feature for your product. You catalog the following information for each risk:
* Mean Time to Detect (MUD} in minutes
* Mean Time to Repair (MTTR) in minutes
* Mean Time Between Failure (MTBF) in days
* User Impact Percentage
The chat feature requires a new database system that takes twice as long to successfully fail over between zones. You want to account for the risk of the new database failing in one zone. What would be the values for the risk of database failover with the new system?

MTTD: 5
MTTR: 10
MTBF: 90
Impact: 33%

MTTD:5
MTTR: 20
MTBF: 90
Impact: 33%

MTTD:5
MTTR: 10
MTBF: 90
Impact 50%

MTTD:5
MTTR: 20
MTBF: 90
Impact: 50%

NEW QUESTION 36
You support a multi-region web service running on Google Kubernetes Engine (GKE) behind a Global HTTP’S Cloud Load Balancer (CLB). For legacy reasons, user requests first go through a third-party Content Delivery Network (CDN). which then routes traffic to the CLB. You have already implemented an availability Service Level Indicator (SLI) at the CLB level. However, you want to increase coverage in case of a potential load balancer misconfiguration. CDN failure, or other global networking catastrophe. Where should you measure this new SLI?
Choose 2 answers

Your application servers’ logs

Instrumentation coded directly in the client

Metrics exported from the application servers

GKE health checks for your application servers

A synthetic client that periodically sends simulated user requests

NEW QUESTION 37
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?

Configure the horizontal pod autoscaler to use the average response time from the Liveness and Readiness probes.

Configure the vertical pod autoscaler in GKE and enable the cluster autoscaler to scale the cluster as pods expand.

Install the Stackdriver custom metrics adapter and configure a horizontal pod autoscaler to use the number of requests provided by the GCLB.

Expose the NGINX stats endpoint and configure the horizontal pod autoscaler to use the request metrics exposed by the NGINX deployment.

NEW QUESTION 38
You support a multi-region web service running on Google Kubernetes Engine (GKE) behind a Global HTTP’S Cloud Load Balancer (CLB). For legacy reasons, user requests first go through a third-party Content Delivery Network (CDN). which then routes traffic to the CLB. You have already implemented an availability Service Level Indicator (SLI) at the CLB level. However, you want to increase coverage in case of a potential load balancer misconfiguration. CDN failure, or other global networking catastrophe. Where should you measure this new SLI?
Choose 2 answers

Your application servers’ logs

Instrumentation coded directly in the client

Metrics exported from the application servers

GKE health checks for your application servers

A synthetic client that periodically sends simulated user requests

NEW QUESTION 39
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?

Call individual stakeholders lo explain what happened.

Develop a post-mortem to be distributed to stakeholders.

Send the Incident State Document to all the stakeholders.

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

NEW QUESTION 40
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?

Use the default Stackdriver Kubernetes Engine Monitoring agent configuration.

Deploy a Fluentd daemonset to GKE. Then create a customized input and output configuration to tail the log file in the application’s pods and write to Slackdriver Logging.

Install Kubernetes on Google Compute Engine (GCE> and redeploy your applications. Then customize the built-in Stackdriver Logging configuration to tail the log file in the application’s pods and write to Stackdriver Logging.

Write a script to tail the log file within the pod and write entries to standard output. Run the script as a sidecar container with the application’s pod. Configure a shared volume between the containers to allow the script to have read access to /var/log in the application container.

NEW QUESTION 41
You support an e-commerce application that runs on a large Google Kubernetes Engine (GKE) cluster deployed on-premises and on Google Cloud Platform. The application consists of microservices that run in containers. You want to identify containers that are using the most CPU and memory. What should you do?

Use Stackdriver Kubernetes Engine Monitoring.

Use Prometheus to collect and aggregate logs per container, and then analyze the results in Grafana.

Use the Stackdriver Monitoring API to create custom metrics, and then organize your containers using groups.

Use Stackdriver Logging to export application logs to BigOuery. aggregate logs per container, and then analyze CPU and memory consumption.

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[Q20-Q41] Free Professional-Cloud-DevOps-Engineer Questions for Google Professional-Cloud-DevOps-Engineer Exam [May-2023]

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