Lead2pass 2017 September New Amazon AWS-DevOps-Engineer-Professional Exam Dumps!
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Pass AWS-DevOps-Engineer-Professional exam with the latest Lead2pass AWS-DevOps-Engineer-Professional dumps: Lead2pass AWS-DevOps-Engineer-Professional exam questions and answers in PDF are prepared by our experts. Moreover, they are based on the recommended syllabus that covering all the AWS-DevOps-Engineer-Professional exam objectives.
Following questions and answers are all new published by Amazon Official Exam Center: https://www.lead2pass.com/aws-devops-engineer-professional.html
QUESTION 41
Your company currently runs a large multi-tier web application. One component is an API service that all other components of your application rely on to perform read/write operations.
This service must have high availability and zero downtime during deployments.
Which technique should you use to provide cost-effective, zero-downtime deployments for this component?
A. Use an AWS CloudFormation template to re-deploy your application behind a load balancer, and launch a new AWS CloudFormation stack during each deployment.
Update your load balancer to send traffic to the new stack, and then deploy your software. Leave your old stacks running, and tag their resources with the version for rollback.
B. Re-deploy your application on Elastic Beanstalk. During deployment, create a new version of your application, and create a new environment running that version in Elastic BeanStalk. Finally, take advantage of the Elastic Beanstalk Swap CNAME operation to switch to the new environment.
C. Re-deploy your application behind a load balancer that uses Auto Scaling groups. Create a new identical Auto Scaling group and associate it to your Amazon Route53 zone.
Configure Amazon Route53 to auto- weight traffic over to the new Auto Scaling group when all instances are marked as healthy.
D. Re-deploy your application behind a load balancer using an AWS OpsWorks stack and use AWS OpsWorks stack versioning, during deployment create a new version of your application, tell AWS OpsWorks to launch the new version behind your load balancer, and when the new version is launched, terminate the old AWS OpsWorks stack.
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