A company is running a critical database on Amazon RDS for MySQL. The company requires high availability and automatic failover in the event of a hardware failure or Availability Zone outage.<br/><br/>Which feature should be enabled?

Answer options:

Read Replicas

Multi-AZ deployment

Cross-Region Replication

Automated Backups

How to approach this question

Identify the RDS feature designed specifically for high availability and automatic failover.

Full Answer

B.Multi-AZ deployment✓ Correct

Multi-AZ deployment

In an Amazon RDS Multi-AZ deployment, Amazon RDS automatically creates a primary DB instance and synchronously replicates the data to a standby instance in a different Availability Zone. In case of an infrastructure failure, Amazon RDS performs an automatic failover to the standby.

Common mistakes

Confusing Read Replicas (performance) with Multi-AZ (availability).

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