The team owns an Aurora MySQL 5.7 database in the us-east-1 region. Your team lead asks you to design an approach for disaster recovery. The requirement is that whenever there is a regional outage in the us-east-1, the database should failover to the us-west-1 region automatically. Which of the following methods is the most suitable?

Answer options:

A.Save a database snapshot, delete the database, and recreate a new Aurora global database that spreads two AWS regions.
B.In the AWS Aurora console, select the database and add a secondary AWS region in us-west-1 to create an Aurora global database.
C.In the AWS Aurora console, select the database, enable Multi-AZ, and select us-west-1 as the target region.
D.Configure a schedule to back up the Aurora DB cluster every day. Copy the DB snapshots to the us-west-1 region.

Correct Answer: B
Option A is incorrect because there will be an outage when the database is deleted. To configure a global database, there is no need to recreate the database.
Option B is CORRECT because users can add another region to configure an Aurora global database. The global database can be quickly recovered from a regional disaster through a managed planned or unplanned failover.
Option C is incorrect because for Multi-AZ, Aurora stores data across multiple Availability Zones in a single AWS Region. Users cannot select another region.
Option D is incorrect because this option does not explain how to copy snapshots and how to restore the DB when there is an outage. Manual processes need to be involved. This option is not the most applicable.
References:
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-global-database-disaster-recovery.html 
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-global-database-getting-started.html