A company wants to migrate data from an Amazon RDS for PostgreSQL DB instance in...

To migrate data from an Amazon RDS for PostgreSQL DB instance in theeu-east-1Region (Account_A) to an Amazon Redshift cluster in theeu-west-1Region (Account_B), AWS DMS needs a replication instance located in the target region (in this case,eu-west-1) to facilitate the data transfer between regions.

Option A: Set up an AWS DMS replication instance in Account_B in eu-west-1.Placing theDMS replication instancein the target account and region (Account_B in eu-west-1) is the most efficient solution. The replication instance can connect to the source RDS PostgreSQL in eu-east-1 and migrate the data tothe Redshift cluster in eu-west-1. This setup ensures data is replicated across AWS accounts and regions.

Options B, C, and D place the replication instance in either the wrong account or region, which increases complexity without adding any benefit.