AWS Certified Solutions Architect – Professional (SAP-C02) — Question 303

A company is launching a new online game on Amazon EC2 instances. The game must be available globally. The company plans to run the game in three AWS Regions us-east-1, eu-west-1, and ap-southeast-1. The game's leaderboards, player inventory and event status must be available across Regions.

A solutions architect must design a solution that will give any Region the ability to scale to handle the load of all Regions. Additionally, users must automatically connect to the Region that provides the least latency.

Which solution will meet these requirements with the LEAST operational overhead?

Answer options

• A. Create an EC2 Spot Fleet. Attach the Spot Fleet to a Network Load Balancer (NLB) in each Region. Create an AWS Global Accelerator IP address that points to the NLB. Create an Amazon Route 53 latency-based routing entry for the Global Accelerator IP address. Save the game metadata to an Amazon RDS for MySQL DB instance in each Region. Set up a read replica in the other Regions.
• B. Create an Auto Scaling group for the EC2 instances Attach the Auto Scaling group to a Network Load Balancer (NLB) in each Region. For each Region, create an Amazon Route 53 entry that uses geoproximity routing and points to the NLB in that Region. Save the game metadata to MySQL databases on EC2 instances in each Region. Set up replication between the database EC2 instances in each Region.
• C. Create an Auto Scaling group for the EC2 instances. Attach the Auto Scaling group to a Network Load Balancer (NLB) in each Region. For each Region, create an Amazon Route 53 entry that uses latency-based routing and points to the NLB in that Region. Save the game metadata to an Amazon DynamoDB global table.
• D. Use EC2 Global View. Deploy the EC2 instances to each Region. Attach the instances to a Network Load Balancer (NLB). Deploy a DNS server on an EC2 instance in each Region. Set up custom logic on each DNS server to redirect the user to the Region that provides the lowest latency. Save the game metadata to an Amazon Aurora global database.

Correct answer: C

Explanation

Option C is correct because Amazon DynamoDB global tables provide a fully managed, multi-region, active-active database solution that replicates data automatically with minimal operational overhead. Using Auto Scaling groups allows the EC2 instances to dynamically scale to handle the load of any region, while Route 53 latency-based routing automatically directs players to the closest region. Other options introduce high operational overhead, such as setting up custom DNS servers on EC2 or managing manual database replication.