A retail company is currently hosting a Java-based application in its on-premises data center.
Management wants the DevOps Engineer to move this application to AWS. Requirements state that while keeping high availability, infrastructure management should be as simple as possible.
Also, during deployments of new application versions, while cost is an important metric, the Engineer needs to ensure that at least half of the fleet is available to handle user traffic.
What option requires the LEAST amount of management overhead to meet these requirements?

You are a Devops Enginneer in your company. You have been instructed to ensure there is an automated backup solution in place for EBS Volumes. These snapshots need to be retained only for a period of 20 days.
How can you achieve this requirement in an efficient manner?

A DevOps Engineer needs to deploy a scalable three-tier Node.js application in AWS. The application must have zero downtime during deployments and be able to roll back to previous versions. Other applications will also connect to the same MySQL backend database.
The CIO has provided the following guidance for logging:
* Centrally view all current web access server logs.
* Search and filter web and application logs in near-real time.
* Retain log data for three months.
How should these requirements be met?

You are getting a lot of empty receive requests when using Amazon SQS.
This is making a lot of unnecessary network load on your instances.
What can you do to reduce this load?

An online company uses Amazon EC2 Auto Scaling extensively to provide an excellent customer experience while minimizing the number of running EC2 instances. The company's self-hosted Puppet environment in the application layer manages the configuration of the instances. The IT manager wants the lowest licensing costs and wants to ensure that whenever the EC2 Auto Scaling group scales down, removed EC2 instances are deregistered from the Puppet master as soon as possible.
How can the requirement be met?