A company has three different environments: Development, QA, and Production. The company wants to deploy its code first in the Development environment, then QA, and then Production.
Which AWS service can be used to meet this requirement?
A CloudFormation stack needs to be deployed in several regions and requires a different Amazon Machine Image (AMI) in each region. Which AWS CloudFormation template key can be used to specify the correct AMI for each region?
An application runs on a fleet of Amazon EC2 instances in an Auto Scaling group. The application stores data in an Amazon DynamoDB table and all instances make updates to the table. When querying data, EC2 instances sometimes retrieve stale data. The Developer needs to update the application to ensure the most up-to-date data is retrieved for all queries. How can the developer accomplish this?