A company has an Amazon RDS database in the us-east-1 region. They want to create a Read Replica in the eu-west-1 region for disaster recovery. What cost implications should the solutions architect consider?

Answer options:

Data transfer between regions for RDS replication is free.

The company will be charged for the cross-region data transfer.

The Read Replica will be billed at a 50% discount.

There is a one-time setup fee for cross-region replication.

How to approach this question

Recall AWS data transfer pricing rules.

Full Answer

B.The company will be charged for the cross-region data transfer.✓ Correct

The company will be charged for the cross-region data transfer from the primary database to the Read Replica.

While data transfer between AZs for Multi-AZ RDS is free, data transfer across different AWS Regions incurs standard cross-region data transfer charges.

Common mistakes

Assuming all database replication traffic is free.

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Practice the full AWS SAA-C03 Practice Exam 2

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