Your company handles a crucial e-Commerce application. This application needs to have an uptime of at least 99.5%. There is a decision to move the application to the AWS Cloud. Which of the following deployment strategies can help build a robust architecture for such an application?

Answer options:

A.Deploying the application across multiple VPC’s
B.Deploying the application across multiple Regions
C.Deploying the application across Edge locations
D.Deploying the application across multiple subnets

Answer – B
The AWS Documentation mentions the following:
Businesses are using the AWS cloud to enable faster disaster recovery of their critical IT systems without incurring the infrastructure expense of a second physical site. The AWS cloud supports many popular disaster recovery (DR) architectures from “pilot light” environments that may be suitable for small customer workload data center failures to “hot standby” environments that enable rapid failover at scale. With data centers in Regions worldwide, AWS provides a set of cloud-based disaster recovery services that enable rapid recovery of your IT infrastructure and data.
For more information on enabling AWS Disaster Recovery, please refer to the below URL:
https://aws.amazon.com/disaster-recovery/