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AWS-DevOps-Engineer-Professional Exam Success | AWS-DevOps-Engineer-Professional Latest Braindumps Files

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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q479-Q484):

NEW QUESTION # 479
Which of the following features of the Elastic Beanstalk service will allow you to perform a Blue Green
Deployment

A. Swap Environment
B. Swap URL's
C. Environment Configuration
D. Rebuild Environment

Answer: B

Explanation:
Explanation
With the Swap url feature, you can keep a version of your environment ready. And when you are ready to cut
over, you can just use the swap url feature to switch over
to your new environment
For more information on swap url feature, please refer to the below link:
* http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.CNAM
CSwap.html

NEW QUESTION # 480
A company runs a database on a single Amazon EC2 instance in a development environment. The data is stored on separate Amazon EBS volumes that are attached to the EC2 instance. An Amazon Route 53 A record has been created and configured to point to the EC2 instance. The company would like to automate the recovery of the database instance when an instance or Availability Zone (AZ) fails. The company also wants to keep its costs low. The RTO is 4 hours and the RPO is 12 hours.
Which solution should a DevOps Engineer implement to meet these requirements?

A. Run the database on two separate EC2 instances in different AZs with one active and the other as a standby. Attach the data volumes to the active instance. Configure an Amazon CloudWatch Events rule to invoke an AWS Lambda function on EC2 instance termination. The Lambda function launches a replacement EC2 instance. If the terminated instance was the active node, then the function attaches the data volumes to the standby node. Start the database and update the Route 53 record.
B. Run the database in an Auto Scaling group with a minimum and maximum instance count of 1 in multiple AZs. Create an AWS Lambda function that is triggered by a scheduled Amazon CloudWatch Events rule every 4 hours to take a snapshot of the data volume and apply a tag. Have the instance UserData get the latest snapshot, create a new volume from it, and attach and mount the volume. Then start the database and update the Route 53 record.
C. Run the database in an Auto Scaling group with a minimum and maximum instance count of 1 in multiple AZs. Add a lifecycle hook to the Auto Scaling group and define an Amazon CloudWatch Events rule that is triggered when a lifecycle event occurs. Have the CloudWatch Events rule invoke an AWS Lambda function to detach or attach the Amazon EBS data volumes from the EC2 instance based on the event.
Configure the EC2 instance UserData to mount the data volumes (retry on failure with a short delay), then start the database and update the Route 53 record.
D. Run the database on two separate EC2 instances in different AZs. Configure one of the instances as a master and the other as a standby. Set up replication between the master and standby instances. Point the Route 53 record to the master. Configure an Amazon CloudWatch Events rule to invoke an AWS Lambda function upon the EC2 instance termination. The Lambda function launches a replacement EC2 instance. If the terminated instance was the active node, the function promotes the standby to master and points the Route 53 record to it.

Answer: D

NEW QUESTION # 481
When an Auto Scaling group is running in Amazon Elastic Compute Cloud (EC2), your application rapidly
scales up and down in response to load within a 10-minute window; however, after the load peaks, you begin
to see problems in your configuration management system where previously terminated Amazon EC2
resources are still showing as active. What would be a reliable and efficient way to handle the cleanup of
Amazon EC2 resources within your configuration management system? Choose two answers from the options
given below

A. Use your existing configuration management system to control the launchingand bootstrapping of
instances to reduce the number of moving parts in the automation.
B. Configure an Amazon Simple Queue Service (SQS) queue for Auto Scaling actions that has a script that
listens for new messages and removes terminated instances from the configuration management system.
C. Write a script that is run by a daily cron job on an Amazon EC2 instance and that executes API Describe
calls of the EC2 Auto Scalinggroup and removes terminated instances from the configuration
management system.
D. Write a small script that is run during Amazon EC2 instance shutdown to de-register the resource from
the configuration management system.

Answer: C,D

Explanation:
Explanation
There is a rich brand of CLI commands available for Cc2 Instances. The CLI is located in the following link:
* http://docs.aws.a
mazon.com/cli/latest/reference/ec2/
You can then use the describe instances command to describe the EC2 instances.
If you specify one or more instance I Ds, Amazon CC2 returns information for those instances. If you do not
specify instance IDs, Amazon EC2 returns information for all relevant instances. If you specify an instance ID
that is not valid, an error is returned. If you specify an instance that you do not own, it is not included in the
returned results.
* http://docs.aws.a
mazon.com/cli/latest/reference/ec2/describe-insta nces.html
You can use the CC2 instances to get those instances which need to be removed from the configuration
management system.

NEW QUESTION # 482
After presenting a working proof of concept for a new application that uses AWS API Gateway, a Developer must set up a team development environment for the project. Due to a tight timeline, the Developer wants to minimize time spent on infrastructure setup, and would like to reuse the code repository created for the proof of concept. Currently, all source code is stored in AWS CodeCommit. Company policy mandates having alpha, beta, and production stages with separate Jenkins servers to build code and run tests for every stage. The Development Manager must have the ability to block code propagation between admins at any time. The Security team wants to make sure that users will not be able to modify the environment without permission.
How can this be accomplished?

A. Create an AWS CodePipeline pipeline that pulls code from the CodeCommit repository. Create alpha, beta, and production stages with Jenkins servers on CodePipeline.
B. Create API Gateway alpha, beta, and production stages. Create an AWS CodePipeline that pulls code from the CodeCommit repository. Create CodePipeline actions to deploy code to the API Gateway stages.
C. Create Jenkins servers for the alpha, beta, and production stages on Amazon EC2 instances.
Create multiple CodeCommit triggers to deploy code to different stages using an AWS Lambda function.
D. Create API Gateway alpha, beta, and production stages. Create a CodeCommit trigger to deploy code to the different stages using an AWS Lambda function.

Answer: A

NEW QUESTION # 483
Which of the following features of the Elastic Beanstalk service will allow you to perform a Blue Green Deployment

A. Swap Environment
B. Swap URL's
C. Environment Configuration
D. Rebuild Environment

Answer: B

Explanation:
Explanation
With the Swap url feature, you can keep a version of your environment ready. And when you are ready to cut over, you can just use the swap url feature to switch over to your new environment For more information on swap url feature, please refer to the below link:
* http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.CNAMCSwap.html

NEW QUESTION # 484
......

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