SAA-C03 Question #627: Real Exam Question with Answer & Explanation

Question

A company is running a business-critical web application on Amazon EC2 instances behind an Application Load Balancer. The EC2 instances are in an Auto Scaling group. The application uses an Amazon Aurora PostgreSQL database that is deployed in a single Availability Zone. The company wants the application to be highly available with minimum downtime and minimum loss of data. Which solution will meet these requirements with the LEAST operational effort?

Options

• APlace the EC2 instances in different AWS Regions. Use Amazon Route 53 health checks to
• BConfigure the Auto Scaling group to use multiple Availability Zones. Configure the database as
• CConfigure the Auto Scaling group to use one Availability Zone. Generate hourly snapshots of the
• DConfigure the Auto Scaling group to use multiple AWS Regions. Write the data from the

Explanation

By configuring the Auto Scaling group to use multiple Availability Zones, the application will be able to continue running even if one Availability Zone goes down. Configuring the database as Multi-AZ will also ensure that the database remains available in the event of a failure in one Availability Zone. Using an Amazon RDS Proxy instance for the database will allow the application to automatically route traffic to healthy database instances, further increasing the availability of the application. This solution will meet the requirements for high availability with minimal operational effort. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/rds-proxy.html

No community discussion yet for this question.