Medium1 markMultiple Choice
Domain 2.2: Highly Available ArchitecturesResilienceRDSAuroraHigh Availability

AWS SAA-C03 · Question 23 · Domain 2.2: Highly Available Architectures

A company is designing a highly available architecture for a new relational database. The database must support automatic failover in the event of an Availability Zone outage. The application requires a MySQL-compatible database engine. <br/><br/>Which TWO solutions meet these requirements? (Select TWO.)

Answer options:

A.

Amazon RDS for MySQL with Multi-AZ deployments

B.

Amazon RDS for MySQL with Read Replicas

C.

Amazon Aurora MySQL-Compatible Edition

D.

Amazon DynamoDB Global Tables

E.

Amazon EC2 instances running MySQL with EBS snapshots

How to approach this question

Look for managed relational database services that support automatic failover.

Full Answer

Both Amazon RDS Multi-AZ deployments and Amazon Aurora provide high availability and automatic failover for relational databases. Aurora is inherently highly available, storing 6 copies of data across 3 AZs.

Common mistakes

Selecting Read Replicas, thinking they provide automatic failover.

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