SAA-C03 · Question #271
SAA-C03 Question #271: Real Exam Question with Answer & Explanation
The correct answer is B: Create and configure an Auto Scaling group to launch private EC2 instances in multiple. To improve scalability and availability, EC2 Auto Scaling across multiple Availability Zones with an Application Load Balancer ensures resilient infrastructure. Migrating to Amazon Aurora MySQL with reader endpoints reduces read latency by offloading read traffic to replicas in o
Question
A software company needs to upgrade a critical web application. The application is hosted in a public subnet. The EC2 instance runs a MySQL database. The application's DNS records are published in an Amazon Route 53 zone. A solutions architect must reconfigure the application to be scalable and highly available. The solutions architect must also reduce MySQL read latency. Which combination of solutions will meet these requirements? (Select TWO.)
Options
- ALaunch a second EC2 instance in a second AWS Region. Use a Route 53 failover routing policy
- BCreate and configure an Auto Scaling group to launch private EC2 instances in multiple
- CMigrate the database to an Amazon Aurora MySQL cluster. Create the primary DB instance and
- DCreate and configure an Auto Scaling group to launch private EC2 instances in multiple AWS
- EMigrate the database to an Amazon Aurora MySQL cluster with cross-Region read replicas.
Explanation
To improve scalability and availability, EC2 Auto Scaling across multiple Availability Zones with an Application Load Balancer ensures resilient infrastructure. Migrating to Amazon Aurora MySQL with reader endpoints reduces read latency by offloading read traffic to replicas in otherAZs, while also increasing high availability.
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