Domain 2.2: Highly Available

A company runs a critical database on Amazon RDS for MySQL. They need to ensure the database remains available even if an entire Availability Zone goes offline. What is the MOST operationally efficient way to achieve this?

A company has a primary web application hosted in the us-east-1 region and a disaster recovery site in us-west-2. They want to automatically route user traffic to us-west-2 if the primary site becomes unresponsive. Which Route 53 routing policy should be used?

A company stores critical backup files in an Amazon S3 bucket in the eu-west-1 region. For disaster recovery compliance, these files must be automatically copied to an S3 bucket in the us-east-1 region. What is the MOST operationally efficient solution?

A global gaming company uses Amazon DynamoDB for player profiles. Players are located in the US, Europe, and Asia. The application requires single-digit millisecond read and write latency for users in all regions. Which DynamoDB feature should be used?

A company is designing a disaster recovery strategy for an Amazon Aurora PostgreSQL database. They require a Recovery Point Objective (RPO) of less than 1 second and a Recovery Time Objective (RTO) of less than 1 minute in a secondary AWS region. Which solution meets these requirements?

A company has web servers in the us-east-1 and eu-west-1 regions. They want to route users to the region that provides the fastest response time. However, due to compliance reasons, all users located in Germany MUST be routed to the eu-west-1 region, regardless of response time. How should Route 53 be configured?