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100% Pass Amazon AWS-DevOps - AWS Certified DevOps Engineer - Professional Fantastic Practice Exams

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The AWS Certified DevOps Engineer Professional exam is a challenging test that requires a thorough understanding of AWS services and DevOps principles. Candidates will be tested on their ability to design, deploy, and manage complex systems on AWS using modern DevOps practices and tools. Passing the exam demonstrates to employers and peers that a candidate has the advanced knowledge and skills required to excel in a DevOps role on the AWS platform, and can be a valuable asset to any organization looking to adopt modern DevOps practices.

Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q447-Q452):

NEW QUESTION # 447
A gaming company adopted AWS Cloud Formation to automate load-testing of theirgames. They have created
an AWS Cloud Formation template for each gaming environment and one for the load-testing stack. The
load-testing stack creates an Amazon Relational Database Service (RDS) Postgres database and two web
servers running on Amazon Elastic Compute Cloud (EC2) that send HTTP requests, measure response times,
and write the results into the database. A test run usually takes between 15 and 30 minutes. Once the tests are
done, the AWS Cloud Formation stacks are torn down immediately. The test results written to the Amazon
RDS database must remain accessible for visualization and analysis.
Select possible solutions that allow access to the test results after the AWS Cloud Formation load -testing
stack is deleted.
Choose 2 answers.

A. Define a deletion policy of type Snapshotfor the Amazon RDS resource to assure that the RDS database
can be restoredafter the AWS Cloud Formation stack is deleted.
B. Define an Amazon RDS Read-Replica in theload-testing AWS Cloud Formation stack and define a
dependency relation betweenmaster and replica via the Depends On attribute.
C. Defineautomated backups with a backup retention period of 30 days for the Amazon RDSdatabase and
perform point-in-time recovery of the database after the AWS CloudFormation stack is deleted.
D. Define an update policy to prevent deletionof the Amazon RDS database after the AWS Cloud
Formation stack is deleted.
E. Define a deletion policy of type Retain forthe Amazon RDS resource to assure that the RDS database is
not deleted with theAWS Cloud Formation stack.

Answer: A,E

Explanation:
Explanation
With the Deletion Policy attribute you can preserve or (in some cases) backup a resource when its stack is
deleted. You specify a DeletionPolicy attribute for each resource that you want to control. If a resource has no
DeletionPolicy attribute, AWS Cloud Formation deletes the resource by default.
To keep a resource when its stack is deleted, specify Retain for that resource. You can use retain for any
resource. For example, you can retain a nested stack, S3
bucket, or CC2 instance so that you can continue to use or modify those resources after you delete their stacks.
For more information on Deletion policy, please visit the below url
* http://docs.aws.amazon.com/AWSCIoudFormation/latest/UserGuide/aws-attri
bute-deletionpolicy.html

NEW QUESTION # 448
A DevOps Engineer is working on a project that is hosted on Amazon Linux and has failed a security review. The DevOps Manager has been asked to review the company buildspec.yami file for an AWS CodeBuild project and provide recommendations. The builspec.yami file is configured as follows:

What changes should be recommended to comply with AWS security best practices? (Select THREE.)

A. Use AWS Systems Manager run command versus scp and ssh commands directly to the instance.
B. Move the environment variables to the `db-deploy-bucket' Amazon S3 bucket, add a prebuild stage to download, then export the variables.
C. Update the CodeBuild project role with the necessary permissions and then remove the AWS credentials from the environment variable.
D. Add a post-build command to remove the temporary files from the container before termination to ensure they cannot be seen by other CodeBuild users.
E. Scramble the environment variables using XOR followed by Base64, add a section to install, and then run XOR and Base64 to the build phase.
F. Store the DB_PASSWORD as a SecurityString value in AWS Systems Manager Parameter Store and then remove the DB_PASSWORD from the environment variables.

Answer: A,B,D

NEW QUESTION # 449
You have an application running on multiple Amazon EC2 instances within an Auto Scaling group.
You notice that instances are being re-spawned as their health checks are failing in Amazon EC2.
However, before you have a chance to diagnose the issue, the affected instances are being terminated by the Auto Scaling service.
You receive notifications of health checks failing and investigate within 20 minutes.
However, this is not enough time to troubleshoot the issue.
What should you change that will enable you to troubleshoot the instance before it is terminated by the Auto Scaling service, while keeping costs minimal?

A. Configure an Amazon SNS topic and associate it with your Auto Scaling group's CloudWatch alarms.
Configure an Amazon SQS queue as a subscriber of this topic, and then create a fleet of Amazon EC2 workers that poll this queue and instruct the Amazon EC2 Auto Scaling API to remove the instance from the Auto Scaling group when an alarm is triggered.
B. Create an Auto Scaling Group lifecycle hook to hold the instance in a terminating:wait state until you have completed any troubleshooting.
When you have completed troubleshooting, wait for the terminating state to expire, or notify to Scaling to complete the lifecycle hook and terminate the Instance.
C. Change the "DeleteOnTermination" flag to false in the Auto Scaling group configuration to ensure that instances are not deleted in the future.
D. Install the Amazon CloudWatch Logs Agent on the instance and configure application and system logs to be sent to the CloudWatch Logs service.

Answer: B

NEW QUESTION # 450
A DevOps Engineer wants to prevent Developers from pushing updates directly to the company's master branch in AWS CodeCommit. These updates should be approved before they are merged.
Which solution will meet these requirements?

A. Configure an IAM role for the Developers with access to CodeCommit and attach an access policy to the CodeCommit repository that denies the Developers role access when the reference is master.
Allow Developers to use feature branches and create a pull request when a feature is complete.
Allow an approver to use CodeCommit to view the changes and approve the pull requests.
B. Configure an IAM role for the Developers to use feature branches and create a pull request when a feature is complete. Allow CodeCommit to test all code in the feature branches, and dynamically modify the IAM role to allow merging the feature branches into the master. Allow an approver to use CodeCommit to view the changes and approve the pull requests.
C. Configure an IAM role for the Developers to use feature branches and create a pull request when a feature is complete. Allow CodeCommit to test all code in the feature branches, and issue a new AWS Security Token Service (STS) token allowing a one-time API call to merge the feature branches into the master. Allow an approver to use CodeCommit to view the changes and approve the pull requests.
D. Configure an IAM role for the Developers with access to CodeCommit and an explicit deny for write actions when the reference is the master. Allow Developers to use feature branches and create a pull request when a feature is complete. Allow an approver to use CodeCommit to view the changes and approve the pull requests.

Answer: A

NEW QUESTION # 451
Which of the following items are required to allow an application deployed on an EC2 instance to write data to a DynamoDB table? Assume that no security keys are allowed to be stored on the EC2 instance. Choose 2 answers from the options below

A. AddanlAMUserto a running EC2 instance.
B. CreateanlAM Role that allows write access to the DynamoDB table.
C. AddanlAMRoleto a running EC2 instance.
D. Createan 1AM Userthat allows write access to the DynamoDB table.

Answer: B,C

Explanation:
Explanation
The AWS documentation mentions the following
We designed I AM roles so that your applications can securely make API requests from your instances, without requiring you to manage the security credentials that the applications use. Instead of creating and distributing your AWS credentials, you can delegate permission to make API requests using 1AM roles For more information on 1AM Roles, please refer to the below URL:
* http://docs.aws.amazon.com/AWSCC2/latest/UserGuide/iam-roles-for-amazon-ec2.htmI

NEW QUESTION # 452
......

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