A company has microservices running in AWS Lambda that read data from Amazon DynamoDB. The Lambda code is manually deployed by Developers after successful testing. The company now needs the tests and deployments be automated and run in the cloud. Additionally, traffic to the new versions of each microservice should be incrementally shifted over time after deployment.
What solution meets all the requirements, ensuring the MOST developer velocity?
A company is using an AWS CloudFormation template to deploy web applications. The template requires that manual changes be made for each of the three major environments: production, staging, and development. The current sprint includes the new implementation and configuration of AWS CodePipeline for automated deployments.
What changes should the DevOps Engineer make to ensure that the CloudFormation template is reusable across multiple pipelines?
An application runs on Amazon EC2 instances behind an Application Load Balancer. Amazon RDS MySOL is used on the backend. The instances run in an Auto
Scaling group across multiple Availability Zones. The Application Load Balancer health check ensures the web servers are operating and able to make read/write
SQL connections. Amazon Route 53 provides DNS functionality with a record pointing to the Application Load Balancer. A new policy requires a geographically isolated disaster recovery site with an RTO of 4 hours and an RPO of 15 minutes.
Which disaster recovery strategy will require the LEAST amount of changes to the application stack?
A company wants to use Amazon DynamoDB for maintaining metadata on its forums. See the sample data set in the image below.
The schema should support the following example searches using the least provisioned read capacity units to minimize cost.
-Search within ForumName for items where the subject starts with "a'.
-Search forums within the given LastPostDateTime time frame.
-Return the thread value where LastPostDateTime is within the last three months.
Which schema meets the requirements?
A retail company has adopted AWS OpsWorks for managing its deployments. In the last three months, the company has discovered that some production instances have been restarting without reason. Upon inspection of the AWS CloudTrail logs, a DevOps Engineer determined that those instances were restarted by OpsWorks. The Engineer now wants automated email notifications whenever OpsWorks restarts an instance when the instance is deemed unhealthy or unable to communicate with the service endpoint.
How can the Engineer meet this requirement?