A Company Is Migrating Its Public-Facing Software to AWS

question 354

Multiple Choice

A company is migrating its public-facing software to AWS. The company plans to use Amazon EC2 to run application code and Amazon RDS to store all application data. The company wants to primarily use one Region with failover capabilities to a secondary Region and Amazon Route 53 to route traffic. The RPO is 2 hours and the RTO is 4 hours. Which combination of steps should be used to meet these requirements while MINIMIZING cost? (Choose three.)

• A) Create an AWS CloudFormation template to provision the application server and database instance in a single Region.
• B) Create an AWS CloudFormation template to provision the application tier of the application and a multi-Region database instance.
• C) Configure Amazon CloudWatch Events rules to run every hour. Trigger AWS Lambda functions to create an RDS snapshot and copy it to the secondary Region.
• D) Configure Amazon CloudWatch Events rules to run every 3 hours. Trigger AWS Lambda functions to create an RDS snapshot and copy it to the secondary Region.
• E) In the event of a failure, deploy a new AWS CloudFormation stack in a secondary region to provision the application resources and a new RDS instance using the copied snapshot and a Route 53 failover routing policy.
• F) In the event of a failure, deploy a new AWS CloudFormation stack in a secondary region to provision the application resources and a replica of the RDS database using the copied snapshot and a Route 53 latency-based routing policy.

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