AWS Certified Solutions Architect - Associate
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A company seeks to migrate an existing application to the AWS Cloud, aiming for high availability and resilience to prevent data loss like that experienced during a recent power outage. The solution must eliminate single points of failure and support scaling based on user demand.
A
Use Amazon EC2 instances in an Auto Scaling group across multiple AZs paired with a Multi-AZ Amazon RDS DB instance for high availability and durability.
B
Utilize EC2 instances in a single AZ with an Auto Scaling group and deploy the database on an EC2 instance with Auto Recovery, addressing hardware but not AZ failures.
C
Employ EC2 instances in an Auto Scaling group across multiple AZs and an Amazon RDS DB instance with a read replica in a single AZ, promoting the replica for failover, to achieve high availability.
D
Place EC2 instances in an Auto Scaling group across multiple AZs and run primary/secondary databases on EC2 instances with EBS Multi-Attach for shared storage, which is not best practice for high availability.