A development team is using AWS CodeCommit to version control application code and AWS CodePipeline to orchestrate software deployments. The team has decided to use a remote master branch as the trigger (or the pipeline to integrate code changes. A developer has pushed code changes to the CodeCommit repository, but noticed that the pipeline had no reaction, even after 10 minutes.
Which of the following actions should be taken to troubleshoot this issue?

1. A. Check that an Amazon CloudWatch Events rule has been created for the master branch to trigger the pipeline.
2. B. Check that the CodePipeline service role has permission to access the CodeCommit repository.
3. C. Check that the developer's IAM role has permission to push to the CodeCommit repository.
4. D. Check to see if the pipeline failed to start because of CodeCommit errors in Amazon CloudWatch Logs.

Correct Answer: C

A DevOps Engineer is deploying a new web application. The company chooses AWS Elastic Beanstalk for deploying and managing the web application, and Amazon RDS MySQL to handle persistent data. The company requires that new deployments have minimal impact if they fail. The application resources must be at full capacity during deployment, and rolling back a deployment must also be possible.
Which deployment sequence will meet these requirements?

1. A. Deploy the application using Elastic Beanstalk and connect to an external RDS MySQL instance using Elastic Beanstalk environment propertie
2. B. Use Elastic Beanstalk features for a blue/green deployment to deploy the new release to a separate environment, and then swap the CNAME in the two environments to redirect traffic to the new version.
3. C. Deploy the application using Elastic Beanstalk, and include RDS MySQL as part of the environment.Use default Elastic Beanstalk behavior to deploy changes to the application, and let rolling updates deploy changes to the application.
4. D. Deploy the application using Elastic Beanstalk, and include RDS MySQL as part of the environment.Use Elastic Beanstalk immutable updates for application deployments.
5. E. Deploy the application using Elastic Beanstalk, and connect to an external RDS MySQL instance using Elastic Beanstalk environment propertie
6. F. Use Elastic Beanstalk immutable updates for application deployments.

Correct Answer: A

Your application is currently running on Amazon EC2 instances behind a load balancer. Your management has decided to use a Blue/Green deployment strategy. How should you implement this for each deployment?

1. A. Set up Amazon Route 53 health checks to fail over from any Amazon EC2 instance that is currently being deployed to.
2. B. Using AWS CloudFormation, create a test stack for validating the code, and then deploy the code to each production Amazon EC2 instance.
3. C. Create a new load balancer with new Amazon EC2 instances, carry out the deployment, and then switch DNS over to the new load balancer using Amazon Route 53 after testing.
4. D. Launch more Amazon EC2 instances to ensure high availability, de-register each Amazon EC2 instance from the load balancer, upgrade it, and test it, and then register it again with the load balancer.

Correct Answer: C
The below diagram shows how this can be done C:\Users\wk\Desktop\mudassar\Untitled.jpg

1) First create a new ELB which will be used to point to the new production changes.
2) Use the Weighted Route policy for Route53 to distribute the traffic to the 2 ELB's based on a 80-20% traffic scenario. This is the normal case, the % can be changed based on the requirement.
3) Finally when all changes have been tested, Route53 can be set to 100% for the new ELB.
Option A is incorrect because this is a failover scenario and cannot be used for Blue green deployments. In Blue Green deployments, you need to have 2 environments running side by side.
Option B is incorrect, because you need to a have a production stack with the changes which will run side by side.
Option D is incorrect because this is not a blue green deployment scenario. You cannot control which users will go the new EC2 instances.
For more information on blue green deployments, please refer to the below document link: from AWS https://dOawsstatic.com/whitepapers/AWS_Blue_Green_Deployments.pdf

A company requires an RPO of 2 hours and an RTO of 10 minutes for its data and application at all times An application uses a MySQL database and Amazon EC2 web servers. The development learn needs a strategy for failover and disaster recovery
Which combination of deployment strategies will meet these requirements? {Select TWO)

1. A. Create an Amazon Aurora cluster in one Availability Zone across multiple Regions as the data store Use Aurora's automatic recovery capabilities in the event of a discluster.
2. B. Create an Amazon Aurora global database m two Regions as the data store In the event of a failure, promote the secondary Region as the master for the application
3. C. Create an Amazon Aurora multi-master cluster across multiple Regions as the data store Use an Network Load Balancer to balance the database traffic in different Regions.
4. D. Set up the application in two Regions and use Amazon Route 53 failover-based routing that points to the Application Load Balancers in both Regions Use health checks to determine the availability in a given Regio
5. E. Use Auto Scaling groups in each Region to adjust capacity based on demand
6. F. Set up the application m two Regions and use a multi-Region Auto Scaling group behind Application Load Balancers to manage the capacity based on demand in the event of a disaster, adjust the Auto Scaling group's desired instance count to increase baseline capacity in the failover Region.

Correct Answer: BE

A company has migrated its container-based applications to Amazon EKS and want to establish automated email notifications. The notifications sent to each email address are for specific activities related to EXS components. The solution will include Amazon SNS topics and an AWS Lambda function to evaluate incoming log events and publish messages to the correct SNS topic.
Which logging solution will support these requirements?

1. A. Enable Amazon CloudWatch Logs to log the EKS component
2. B. Create a CloudWatch subscription filterfor each component with Lambda as the subscription feed destination.
3. C. Enable Amazon CloudWatch Logs to log the EKS component
4. D. Create CloudWatch Logs Insights queries linked to Amazon CloudWatch Events events that trigger Lambda.
5. E. Enable Amazon S3 logging for the EKS component
6. F. Configure an Amazon CloudWatch subscription filter for each component with Lambda as the subscription feed destination.
7. G. Enable Amazon S3 logging for the EKS component
8. H. Configure S3 PUT Object event notifications with AWS Lambda as the destination.

Correct Answer: A