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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q56-Q61):

NEW QUESTION # 56
A company is reviewing its IAM policies. One policy written by the DevOps Engineer has been flagged as too permissive. The policy is used by an AWS Lambda function that issues a stop command to Amazon EC2 instances tagged with Environment: NonProduction over the weekend. The current policy is:

What changes should the Engineer make to achieve a policy of least permission? (Select THREE.)

A. Option F
B. Option A
C. Option B
D. Option D
E. Option E
F. Option C

Answer: B,E,F

NEW QUESTION # 57
An Application team has three environments for their application: development, pre-production, and production. The team recently adopted AWS CodePipeline. However, the team has had several deployments of misconfigured or nonfunctional development code into the production environment, resulting in user disruption and downtime. The DevOps Engineer must review the pipeline and add steps to identify problems with the application before it is deployed.
What should the Engineer do to identify functional issues during the deployment process? (Choose two.)

A. Use Amazon Inspector to add a test action to the pipeline. Use the Amazon Inspector Runtime Behavior Analysis Inspector rules package to check that the deployed code complies with company security standards before deploying it to production.
B. Using AWS CodeBuild to add a test action to the pipeline to replicate common user activities and ensure that the results are as expected before progressing to production deployment.
C. Create an AWS CodeDeploy action in the pipeline with a deployment configuration that automatically deploys the application code to a limited number of instances. The action then pauses the deployment so that the QA team can review the application functionality. When the review is complete, CodeDeploy resumes and deploys the application to the remaining production Amazon EC2 instances.
D. After the deployment process is complete, run a testing activity on an Amazon EC2 instance in a different region that accesses the application to simulate user behavior if unexpected results occur, the testing activity sends a warning to an Amazon SNS topic. Subscribe to the topic to get updates.
E. Add an AWS CodeDeploy action in the pipeline to deploy the latest version of the development code to pre-production. Add a manual approval action in the pipeline so that the QA team can test and confirm the expected functionality. After the manual approval action, add a second CodeDeploy action that deploys the approved code to the production environment.

Answer: A,C

NEW QUESTION # 58
A company is building a web and mobile application that uses a serverless architecture powered by AWS Lambda and Amazon API Gateway. The company wants to fully automate the backend Lambda deployment based on code that is pushed to the appropriate environment branch in an AWS CodeCommit repository.
The deployment must have the following:
* Separate environment pipelines for testing and production.
* Automatic deployment that occurs for test environments only.
Which steps should be taken to meet these requirements?

A. Configure a new AWS CodePipeline service. Create a CodeCommit repository for each environment.
Set up CodePipeline to retrieve the source code from the appropriate repository. Set up a deployment step to deploy the Lambda functions with AWS CloudFormation.
B. Create two AWS CodePipeline configurations for test and production environments. Configure the production pipeline to have a manual approval step. Create one CodeCommit repository with a branch for each environment. Set up each CodePipeline to retrieve the source code from the appropriate branch in the repository. Set up the deployment step to deploy the Lambda functions with AWS CloudFormation.
C. Create an AWS CodeBuild configuration for test and production environments. Configure the production pipeline to have a manual approval step. Create one CodeCommit repository with a branch for each environment. Push the Lambda function code to an Amazon S3 bucket. Set up the deployment step to deploy the Lambda functions from the S3 bucket.
D. Create two AWS CodePipeline configurations for test and production environments. Configure the production pipeline to have a manual approval step. Create a CodeCommit repository for each environment. Set up each CodePipeline to retrieve the source code from the appropriate repository. Set up the deployment step to deploy the Lambda functions with AWS CloudFormation.

Answer: D

NEW QUESTION # 59
Your public website uses a load balancer and an Auto Scalinggroup in a virtual private cloud. Your chief
security officer has asked you to set up a monitoring system that quickly detects and alerts your team when a
large sudden traffic increase occurs. How should you set this up?

A. Usean Amazon EMR job to run every thirty minutes, analyze the Elastic LoadBalancing access logs in a
batch manner to detect a sharp increase in trafficand then use the Amazon Simple Email Service to alert
your team.
B. Setup a cron job to actively monitor the AWS CloudTrail logs for increased trafficand use Amazon SNS
to alert your team.
C. Setup an Amazon CloudWatch alarm for the Amazon EC2 Networkln metric for the AutoScaling group
and then use Amazon SNS to alert your team.
D. Usean Amazon EMR job to run every thirty minutes analyze the CloudWatch logs fromyour application
Amazon EC2 instances in a batch manner to detect a sharpincrease in traffic and then use the Amazon
SNS SMS notification to alert yourteam
E. Setup an Amazon CloudWatch alarm for the Elastic Load Balancing Networkln metricand then use
Amazon SNS to alert your team.

Answer: C

Explanation:
Explanation
The below snapshot from the AWS documentation gives details on the Networkln metric

NEW QUESTION # 60
You have a web application hosted on EC2 instances. There are application changes which happen to the web application on a quarterly basis. Which of the following are example of Blue Green deployments which can be applied to the application? Choose 2 answers from the options given below

A. Deploythe application to an elastic beanstalk environment. Use the Rolling updatesfeature to perform a Blue Green deployment.
B. Deploythe application to an elastic beanstalk environment. Have a secondary elasticbeanstalk environment in place with the updated application code. Use the swapURL's feature to switch onto the new environment.
C. Placethe EC2 instances behind an ELB. Have a secondary environment with EC2lnstances and ELB in another region. Use Route53 with geo-location to routerequests and switch over to the secondary environment.
D. Deploythe application using Opswork stacks. Have a secondary stack for the newapplication deployment. Use Route53 to switch over to the new stack for the newapplication update.

Answer: B,D

Explanation:
Explanation
The AWS Documentation mentions the following
AWS Elastic Beanstalk is a fast and simple way to get an application up and running on AWS.6 It's perfect for developers who want to deploy code without worrying about managing the underlying infrastructure. Elastic Beanstalk supports Auto Scaling and Elastic Load Balancing, both of which enable blue/green deployment.
Elastic Beanstalk makes it easy to run multiple versions of your application and provides capabilities to swap the environment URLs, facilitating blue/green deployment.
AWS OpsWorks is a configuration management service based on Chef that allows customers to deploy and manage application stacks on AWS.7 Customers can specify resource and application configuration, and deploy and monitor running resources. OpsWorks simplifies cloning entire stacks when you're preparing blue/green environments.
For more information on Blue Green deployments, please refer to the below link:
* https://dO3wsstatic.com/whitepapers/AWS_Blue_Green_Deployments.pdf

NEW QUESTION # 61
......

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