Professional-Cloud-DevOps-Engineer Free Update With 100% Exam Passing Guarantee [2022]
[Mar-2022] Verified Google Exam Dumps with Professional-Cloud-DevOps-Engineer Exam Study Guide
Conclusion
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NEW QUESTION 12
You are running an application in a virtual machine (VM) using a custom Debian image. The image has the Stackdriver Logging agent installed. The VM has the cloud-platform scope. The application is logging information via syslog. You want to use Stackdriver Logging in the Google Cloud Platform Console to visualize the logs. You notice that syslog is not showing up in the "All logs" dropdown list of the Logs Viewer. What is the first thing you should do?
- A. Verify the VM service account access scope includes the monitoring.write scope.
- B. Install the most recent version of the Stackdriver agent.
- C. Look for the agent's test log entry in the Logs Viewer.
- D. SSH to the VM and execute the following commands on your VM: ps ax I grep fluentd
Answer: D
Explanation:
https://cloud.google.com/compute/docs/access/service-accounts#associating_a_service_account_to_an_instance
NEW QUESTION 13
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?
- A. Convert the instances to preemptible virtual machines.
- B. Migrate the instances to a Managed Instance Group.
- C. Create an Unmanaged Instance Group for the instances used to run the workload.
- D. Purchase Committed Use Discounts.
Answer: D
NEW QUESTION 14
You need to deploy a new service to production. The service needs to automatically scale using a Managed Instance Group (MIG) and should be deployed over multiple regions. The service needs a large number of resources for each instance and you need to plan for capacity. What should you do?
- A. Validate that the resource requirements are within the available quota limits of each region.
- B. Monitor results of Stackdriver Trace to determine the required amount of resources.
- C. Deploy the service in one region and use a global load balancer to route traffic to this region.
- D. Use the n1-highcpu-96 machine type in the configuration of the MIG.
Answer: D
NEW QUESTION 15
You support a high-traffic web application that runs on Google Cloud Platform (GCP). You need to measure application reliability from a user perspective without making any engineering changes to it. What should you do?
Choose 2 answers
- A. Create new synthetic clients to simulate a user journey using the application.
- B. Analyze the web proxy logs only and capture response time of each request.
- C. Modify the code to capture additional information for user interaction.
- D. Review current application metrics and add new ones as needed.
- E. Use current and historic Request Logs to trace customer interaction with the application.
Answer: A,C
NEW QUESTION 16
Your organization recently adopted a container-based workflow for application development. Your team develops numerous applications that are deployed continuously through an automated build pipeline to a Kubernetes cluster in the production environment. The security auditor is concerned that developers or operators could circumvent automated testing and push code changes to production without approval. What should you do to enforce approvals?
- A. Use an Admission Controller to verify that incoming requests originate from approved sources.
- B. Leverage Kubernetes Role-Based Access Control (RBAC) to restrict access to only approved users.
- C. Enable binary authorization inside the Kubernetes cluster and configure the build pipeline as an attestor.
- D. Configure the build system with protected branches that require pull request approval.
Answer: D
NEW QUESTION 17
Your application services run in Google Kubernetes Engine (GKE). You want to make sure that only images from your centrally-managed Google Container Registry (GCR) image registry in the altostrat-images project can be deployed to the cluster while minimizing development time. What should you do?
- A. Add a tag to each image in gcr.io/altostrat-images and check that this tag is present when the image is deployed.
- B. Use a Binary Authorization policy that includes the whitelist name pattern gcr.io/attostrat-images/.
- C. Create a custom builder for Cloud Build that will only push images to gcr.io/altostrat-images.
- D. Add logic to the deployment pipeline to check that all manifests contain only images from gcr.io/altostrat-images.
Answer: C
NEW QUESTION 18
You are deploying an application that needs to access sensitive information. You need to ensure that this information is encrypted and the risk of exposure is minimal if a breach occurs. What should you do?
- A. Leverage a continuous build pipeline that produces multiple versions of the secret for each instance of the application.
- B. Inject the secret at the time of instance creation via an encrypted configuration management system.
- C. Store the encryption keys in Cloud Key Management Service (KMS) and rotate the keys frequently
- D. Integrate the application with a Single sign-on (SSO) system and do not expose secrets to the application
Answer: C
NEW QUESTION 19
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?
- A. Buckelize Ihe request latencies into ranges, and then compute the percentile at 100 ms.
- B. Bucketize the request latencies into ranges, and then compute the median and 90th percentiles.
- C. Count the number of home page requests that load in under 100 ms, and then divide by the total number of home page requests.
- D. Count 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
Explanation:
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)
NEW QUESTION 20
You support a stateless web-based API that is deployed on a single Compute Engine instance in the europe-west2-a zone . The Service Level Indicator (SLI) for service availability is below the specified Service Level Objective (SLO). A postmortem has revealed that requests to the API regularly time out. The time outs are due to the API having a high number of requests and running out memory. You want to improve service availability. What should you do?
- A. Set up additional service instances in other zones and load balance the traffic between all instances.
- B. Change the specified SLO to match the measured SLI.
- C. Move the service to higher-specification compute instances with more memory.
- D. Set up additional service instances in other zones and use them as a failover in case the primary instance is unavailable.
Answer: A
NEW QUESTION 21
Your company follows Site Reliability Engineering practices. You are the person in charge of Communications for a large, ongoing incident affecting your customer-facing applications. There is still no estimated time for a resolution of the outage. You are receiving emails from internal stakeholders who want updates on the outage, as well as emails from customers who want to know what is happening. You want to efficiently provide updates to everyone affected by the outage. What should you do?
- A. Provide all internal stakeholder emails to the Incident Commander, and allow them to manage internal communications. Focus on providing responses directly to customers.
- B. Delegate the responding to internal stakeholder emails to another member of the Incident Response Team.
Focus on providing responses directly to customers. - C. Provide periodic updates to all stakeholders in a timely manner. Commit to a "next update" time in all communications.
- D. Focus on responding to internal stakeholders at least every 30 minutes. Commit to "next update" times.
Answer: B
NEW QUESTION 22
You created a Stackdriver chart for CPU utilization in a dashboard within your workspace project. You want to share the chart with your Site Reliability Engineering (SRE) team only. You want to ensure you follow the principle of least privilege. What should you do?
- A. Click "Share chart by URL" and provide the URL to the SRE team. Assign the SRE team the Dashboard Viewer IAM role in the workspace project.
- B. Share the workspace Project ID with the SRE team. Assign the SRE team the Monitoring Viewer IAM role in the workspace project.
- C. Click "Share chart by URL" and provide the URL to the SRE team. Assign the SRE team the Monitoring Viewer IAM role in the workspace project.
- D. Share the workspace Project ID with the SRE team. Assign the SRE team the Dashboard Viewer IAM role in the workspace project.
Answer: C
Explanation:
https://cloud.google.com/monitoring/access-control
NEW QUESTION 23
You support a user-facing web application. When analyzing the application's error budget over the previous six months, you notice that the application has never consumed more than 5% of its error budget in any given time window. You hold a Service Level Objective (SLO) review with business stakeholders and confirm that the SLO is set appropriately. You want your application's SLO to more closely reflect its observed reliability. What steps can you take to further that goal while balancing velocity, reliability, and business needs? (Choose two.)
- A. Add more serving capacity to all of your application's zones.
- B. Implement and measure additional Service Level Indicators (SLIs) fro the application.
- C. Tighten the SLO match the application's observed reliability.
- D. Announce planned downtime to consume more error budget, and ensure that users are not depending on a tighter SLO.
- E. Have more frequent or potentially risky application releases.
Answer: A,B
NEW QUESTION 24
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. Install the Stackdriver custom metrics adapter and configure a horizontal pod autoscaler to use the number of requests provided by the GCLB.
- B. Configure the horizontal pod autoscaler to use the average response time from the Liveness and Readiness probes.
- 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 vertical pod autoscaler in GKE and enable the cluster autoscaler to scale the cluster as pods expand.
Answer: C
NEW QUESTION 25
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?
- A. File a bug with the development team so they can find the root cause of the crashing instance.
- B. Create a Managed Instance Group with a single instance and use health checks to determine the system status.
- C. Create a Stackdriver Monitoring dashboard with SMS alerts to be able to start recreating the crashed instance promptly after it has crashed.
- D. Add a Load Balancer in front of the Compute Engine instance and use health checks to determine the system status.
Answer: B
NEW QUESTION 26
You are performing a semiannual capacity planning exercise for your flagship service. You expect a service user growth rate of 10% month-over-month over the next six months. Your service is fully containerized and runs on Google Cloud Platform (GCP). using a Google Kubernetes Engine (GKE) Standard regional cluster on three zones with cluster autoscaler 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 or as a result of zone failure, while avoiding unnecessary costs. How should you prepare to handle the predicted growth?
- A. Because you are at only 30% utilization, you have significant headroom and you won't need to add any additional capacity for this rate of growth.
- B. Proactively add 60% more node capacity to account for six months of 10% growth rate, and then perform a load test to make sure you have enough capacity.
- C. Verity the maximum node pool size, enable a horizontal pod autoscaler, and then perform a load test to verity your expected resource needs.
- D. Because you are deployed on GKE and are using a cluster autoscaler. your GKE cluster will scale automatically, regardless of growth rate.
Answer: D
NEW QUESTION 27
Your team uses Cloud Build for all CI/CO pipelines. You want to use the kubectl builder for Cloud Build to deploy new images to Google Kubernetes Engine (GKE). You need to authenticate to GKE while minimizing development effort. What should you do?
- A. Assign the Container Developer role to the Cloud Build service account.
- B. Create a separate step in Cloud Build to retrieve service account credentials and pass these to kubectl.
- C. Specify the Container Developer role for Cloud Build in the cloudbuild.yaml file.
- D. Create a new service account with the Container Developer role and use it to run Cloud Build.
Answer: A
NEW QUESTION 28
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?
- A. Develop a post-mortem to be distributed to stakeholders.
- B. Require the engineer responsible to write an apology email to all stakeholders.
- C. Call individual stakeholders lo explain what happened.
- D. Send the Incident State Document to all the stakeholders.
Answer: D
NEW QUESTION 29
Your company experiences bugs, outages, and slowness in its production systems. Developers use the production environment for new feature development and bug fixes. Configuration and experiments are done in the production environment, causing outages for users. Testers use the production environment for load testing, which often slows the production systems. You need to redesign the environment to reduce the number of bugs and outages in production and to enable testers to load test new features. What should you do?
- A. Create an automated testing script in production to detect failures as soon as they occur.
- B. Secure the production environment to ensure that developers can't change it and set up one controlled update per year.
- C. Create a development environment with smaller server capacity and give access only to developers and testers.
- D. Create a development environment for writing code and a test environment for configurations, experiments, and load testing.
Answer: A
NEW QUESTION 30
You support a service that recently had an outage. The outage was caused by a new release that exhausted the service memory resources. You rolled back the release successfully to mitigate the impact on users. You are now in charge of the post-mortem for the outage. You want to follow Site Reliability Engineering practices when developing the post-mortem. What should you do?
- A. Focus on identifying the contributing causes of the incident rather than the individual responsible for the cause.
- B. Focus on developing new features rather than avoiding the outages from recurring.
- C. Plan individual meetings with all the engineers involved. Determine who approved and pushed the new release to production.
- D. Use the Git history to find the related code commit. Prevent the engineer who made that commit from working on production services.
Answer: A
NEW QUESTION 31
Your company is developing applications that are deployed on Google Kubernetes Engine (GKE). Each team manages a different application. You need to create the development and production environments for each team, while minimizing costs. Different teams should not be able to access other teams' environments. What should you do?
- A. Create a Development and a Production GKE cluster in separate projects. In each cluster, create a Kubernetes namespace per team, and then configure Kubernetes Role-based access control (RBAC) so that each team can only access its own namespace.
- B. Create one GCP Project per team. In each project, create a cluster for Development and one for Production. Grant the teams IAM access to their respective clusters.
- C. Create one GCP Project per team. In each project, create a cluster with a Kubernetes namespace for Development and one for Production. Grant the teams IAM access to their respective clusters.
- D. Create a Development and a Production GKE cluster in separate projects. In each cluster, create a Kubernetes namespace per team, and then configure Identity Aware Proxy so that each team can only access its own namespace.
Answer: A
NEW QUESTION 32
You are on-call for an infrastructure service that has a large number of dependent systems. You receive an alert indicating that the service is failing to serve most of its requests and all of its dependent systems with hundreds of thousands of users are affected. As part of your Site Reliability Engineering (SRE) incident management protocol, you declare yourself Incident Commander (IC) and pull in two experienced people from your team as Operations Lead (OLJ and Communications Lead (CL). What should you do next?
- A. Look for ways to mitigate user impact and deploy the mitigations to production.
- B. Contact the affected service owners and update them on the status of the incident.
- C. Establish a communication channel where incident responders and leads can communicate with each other.
- D. Start a postmortem, add incident information, circulate the draft internally, and ask internal stakeholders for input.
Answer: A
Explanation:
https://sre.google/sre-book/managing-incidents/
NEW QUESTION 33
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