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Quiz 2022 Amazon High Hit-Rate DOP-C01: AWS Certified DevOps Engineer - Professional Torrent
Download AWS Certified DevOps Engineer - Professional Exam Dumps
NEW QUESTION 37
Your company currently has a set of EC2 Instances sitting behind an Elastic Load Balancer. There is a
requirement to create an Opswork stack to host the newer version of this application. The idea is to first get the
stack in place, carry out a level of testing and then deploy it at a later stage. The Opswork stack and layers
have been setup. To complete the testing process, the current ELB is being utilized. But you have now noticed
that your current application has stopped responding to requests. Why is this the case.
- A. Thisis because the Opswork stack is utilizing the current instances after the ELBwas attached as a layer.
- B. Thisis because the Opswork web layer is utilizing the current instances after theELB was attached as an
additional layer. - C. Youhave configured the Opswork stack to deploy new instances in the same domainthe older instances.
- D. TheELB would have deregistered the older instances
Answer: D
Explanation:
Explanation
The AWS Documentation mentions the following
If you choose to use an existing Clastic Load Balancing load balancer, you should first confirm that it is not
being used for other purposes and has no attached instances. After the load balancer is attached to the layer,
OpsWorks removes any existing instances and configures the load balancer to handle only the layer'sinstances.
Although it is technically possible to use the Clastic Load Balancing console or API to modify a load
balancer's configuration after attaching it to a layer, you should not do so; the changes will not be permanent.
For more information on Opswork CLB layers, please visit the below URL:
* http://docs.aws.a
mazon.com/opsworks/latest/userguide/layers-elb.html
NEW QUESTION 38
A DevOps Engineer is researching the least-expensive way to implement an image batch processing cluster in AWS. The application cannot run in Docker containers and must run on Amazon EC2. The batch job stores checkpoint data on a Network File System (NFS) and can tolerate interruptions. Configuring the cluster software from a bare EC2 Amazon Linux image takes 30 minutes.
Which is the MOST cost-effective solution?
- A. Use Amazon EFS for checkpoint data. Use EC2 Fleet to launch EC2 Spot Instances. Create a standard cluster AMI and use the latest AMI when creating instances.
- B. Use Amazon EFS for checkpoint data. To complete the job, use an EC2 Auto Scaling group and an On-Demand pricing model to provision EC2 instances temporarily.
- C. Use ClusterFS on EC2 instances for checkpoint data. To run the batch job, configure EC2 instances manually. When the job completes, shut down the instances manually.
- D. Use Amazon EFS for checkpoint data. Use EC2 Fleet to launch EC2 Spot Instances, and use user data to configure the EC2 Amazon Linux instance on startup.
Answer: D
Explanation:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/burstable-performance-instances- unlimited-mode.html
NEW QUESTION 39
A global company with distributed Development teams built a web application using a microservices architecture running on Amazon ECS. Each application service is independent and runs as a service in the ECS cluster. The container build files and source code reside in a private GitHub source code repository.
Separate ECS clusters exist for development, testing, and production environments.
Developers are required to push features to branches in the GitHub repository and then merge the changes into an environment-specific branch (development, test, or production). This merge needs to trigger an automated pipeline to run a build and a deployment to the appropriate ECS cluster.
What should the DevOps Engineer recommend as an automated solution to these requirements?
- A. Create a separate pipeline in AWS CodePipeline for each environment. Trigger each pipeline based on commits to the corresponding environment branch in GitHub. Add a build stage to launch AWS CodeBuild to create the container image from the build file and push it to Amazon ECR. Then add another stage to update the Amazon ECS task and service definitions in the appropriate cluster for that environment.
- B. Create an AWS CloudFormation stack for the ECS cluster and AWS CodePipeline services. Store the container build files in an Amazon S3 bucket. Use a post-commit hook to trigger a CloudFormation stack update that deploys the ECS cluster. Add a task in the ECS cluster to build and push images to Amazon ECR, based on the container build files in S3.
- C. Create a new repository in AWS CodeCommit. Configure a scheduled project in AWS CodeBuild to synchronize the GitHub repository to the new CodeCommit repository. Create a separate pipeline for each environment triggered by changes to the CodeCommit repository. Add a stage using AWS Lambda to build the container image and push to Amazon ECR. Then add another stage to update the ECS task and service definitions in the appropriate cluster for that environment.
- D. Create a pipeline in AWS CodePipeline. Configure it to be triggered by commits to the master branch in GitHub. Add a stage to use the Git commit message to determine which environment the commit should be applied to, then call the create-image Amazon ECR command to build the image, passing it to the container build file. Then add a stage to update the ECS task and service definitions in the appropriate cluster for that environment.
Answer: B
NEW QUESTION 40
You are a Devops Engineer for your company. There is a requirement to log each time an Instance is scaled in or scaled out from an existing Autoscaling Group. Which of the following steps can be implemented to fulfil this requirement. Each step forms part of the solution.
- A. Createa Cloudwatch event which will trigger the SQS queue.
- B. Createan SQS queue which will write the event to Cloudwatch logs
- C. Createa Cloudwatch event which will trigger the Lambda function.
- D. Createa Lambda function which will write the event to Cloudwatch logs
Answer: C,D
Explanation:
Explanation
The AWS documentation mentions the following
You can run an AWS Lambda function that logs an event whenever an Auto Scaling group launches or terminates an Amazon CC2 instance and whether the launch or terminate event was successful.
For more information on configuring lambda with Cloudwatch events for this scenario, please visit the URL:
http://docs.aws.a
mazon.com/AmazonCloudWatch/latest/events/LogASGro upState.html
NEW QUESTION 41
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