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Amazon AWS-DevOps-Engineer-Professional Certification Exam is designed to test the skills and knowledge of professionals working in the field of DevOps. AWS-DevOps-Engineer-Professional exam is intended for individuals who have experience in designing, deploying, and managing applications on the Amazon Web Services (AWS) platform. AWS Certified DevOps Engineer - Professional certification is intended to validate the candidate's expertise in DevOps practices and their ability to implement and manage continuous integration and delivery pipelines.

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q73-Q78):

NEW QUESTION # 73
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 an update policy to prevent deletionof the Amazon RDS database after the AWS Cloud Formation stack is deleted.
B. 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.
C. 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.
D. 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.
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: D,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-attribute-deletionpolicy.html

NEW QUESTION # 74
A DevOps engineer is deploying a new version of a company's application in an AWS CodeDeploy deployment group associated with its Amazon EC2 instances. After some time, the deployment fails. The engineer realizes that all the events associated with the specific deployment ID are in a Skipped status, and code was not deployed in the instances associated with the deployment group.
What are valid reasons for this failure? (Select TWO.)

A. The networking configuration does not allow the EC2 instances to reach the internet via a NAT gateway or internet gateway, and the CodeDeploy endpoint cannot be reached.
B. An instance profile with proper permissions was not attached to the target EC2 instances.
C. The IAM user who triggered the application deployment does not have permission to interact with the CodeDeploy endpoint.
D. The appspec.yrnl file was not included in the application revision.
E. The target EC2 instances were not properly registered with the CodeDeploy endpoint.

Answer: B,C

NEW QUESTION # 75
An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). A DevOps Engineer is using AWS CodeDeploy to release a new version. The deployment fails during the AllowTraffic lifecycle event, but a cause for the failure is not indicated in the deployment logs.
What would cause this?

A. The health checks specified for the ALB target group are misconfigured.
B. The CodeDeploy agent was not installed in the EC2 instances that are part of the ALB target group.
C. The user who initiated the deployment does not have the necessary permissions to interact with the ALB.
D. The appspec.yml file contains an invalid script to execute in the AllowTraffic lifecycle hook.

Answer: A

Explanation:
https://docs.amazonaws.cn/en_us/codedeploy/latest/userguide/codedeploy-user.pdf (399)

NEW QUESTION # 76
A company that runs many workloads on AWS has an Amazon EBS spend that has increased over time. The DevOps team notices there are many unattached EBS volumes. Although there are workloads where volumes are detached, volumes over 14 days old are stale and no longer needed. A DevOps engineer has been tasked with creating automation that deletes unattached EBS volumes that have been unattached for 14 days.
Which solution will accomplish this?

A. Use AWS Trusted Advisor to detect EBS volumes that have been detached for more than 14 days. Execute an AWS Lambda function that creates a snapshot and then deletes the EBS volume.
B. Configure the AWS Config ec2-volume-inuse-check managed rule with a configuration changes trigger type and an Amazon EC2 volume resource target. Create a new Amazon CloudWatch Events rule scheduled to execute an AWS Lambda function in 14 days to delete the specified EBS volume.
C. Use Amazon EC2 and Amazon Data Lifecycle Manager to configure a volume lifecycle policy. Set the interval period for unattached EBS volumes to 14 days and set the retention rule to delete. Set the policy target volumes as *.
D. Create an Amazon CloudWatch Events rule to execute an AWS Lambda function daily. The Lambda function should find unattached EBS volumes and tag them with the current date, and delete unattached volumes that have tags with dates that are more than 14 days old.

Answer: C

NEW QUESTION # 77
A DevOps Engineer is reviewing a system that uses Amazon EC2 instances in an Auto Scaling group. This system uses a configuration management tool that runs locally on each EC2 instance. Because of the volatility of the application load, new instances must be fully functional within 3 minutes of entering a running state.
Current setup tasks include:
* Installing the configuration management agent - 2 minutes
* Installing the application framework - 15 minutes
* Copying configuration data from Amazon S3 - 2 minutes
* Running the configuration management agent to configure instances - 1 minute
* Deploying the application code from Amazon S3 - 2 minutes
How should the Engineer set up system so it meets the launch time requirement?

A. Build a custom AMI that includes the configuration management agent and application framework. Write a bootstrap script to pull configuration data from Amazon S3, run the agent to configure the instance, and deploy the application from S3.
B. Write a bootstrap script to install the configuration management agent, install and the application framework, pull configuration data from Amazon S3, run the agent to configure the instance, and deploy the application from S3.
C. Trigger an AWS Lambda function from an Amazon CloudWatch Events rule when a new EC2 instance launches. Have the function install the configuration management agent and the application framework, pull configuration data from Amazon S3, run the agent to configure the instance, and deploy the application from S3.
D. Build a custom AMI that includes the configuration management agent, application framework, and configuration data. Write a bootstrap script to run the agent to configure the instance and deploy the application from Amazon S3.

Answer: B

NEW QUESTION # 78
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