A big fintech company has provided services to customers such as banks and governments. One of the applications is built in AWS EC2 instance and RDS MySQL. Its Recovery time objective (RTO) and Recovery point objective (RPO) are 30 minutes. At the moment, it has used a warm standby disaster recovery strategy. Which AWS services can help achieve these RTO and RPO targets? (Select TWO.)

Answer options:

A.Route53 
B.AWS Storage Gateway
C.RDS MySQL Severless feature
D.S3 Glacier
E.Auto Scaling Group

Correct Answer – A, E
There are several Disaster Recovery Scenarios with AWS according to
https://d1.awsstatic.com/whitepapers/aws-disaster-recovery.pdf:
In this case, its RTO and RPO are 30 minutes, which is a key to influence and choose the right AWS services to implement the disaster recovery strategy.
Option A is CORRECT: Because Route53 can help on switching the traffic to the standby when needed, which is an easy, quick and secure solution.
Option B is incorrect: Because AWS Storage Gateway is mainly used in the Backup & Restore strategy.
Option C is incorrect: Because RDS MySQL does not have Serverless feature.
Option D is incorrect: Because Amazon Glacier is a low-cost alternative mainly used for Backup & Restore strategy.
Option E is CORRECT: Because Auto Scaling Group can be useful to adjust the number of required instances to meet the capacity need.