AWS Certified Solutions Architect – Associate (SAA-C03) — Question 645

A company wants to migrate its web applications from on premises to AWS. The company is located close to the eu-central-1 Region. Because of regulations, the company cannot launch some of its applications in eu-central-1. The company wants to achieve single-digit millisecond latency.

Which solution will meet these requirements?

Answer options

• A. Deploy the applications in eu-central-1. Extend the company’s VPC from eu-central-1 to an edge location in Amazon CloudFront.
• B. Deploy the applications in AWS Local Zones by extending the company's VPC from eu-central-1 to the chosen Local Zone.
• C. Deploy the applications in eu-central-1. Extend the company’s VPC from eu-central-1 to the regional edge caches in Amazon CloudFront.
• D. Deploy the applications in AWS Wavelength Zones by extending the company’s VPC from eu-central-1 to the chosen Wavelength Zone.

Correct answer: B

Explanation

AWS Local Zones allow organizations to run latency-sensitive applications close to end-users, satisfying regulatory and single-digit millisecond latency requirements without deploying directly in the parent region. Options A and C violate the compliance constraint because they require hosting the applications in eu-central-1, and VPCs cannot be extended directly to CloudFront edge locations. Option D is incorrect because AWS Wavelength is designed specifically for ultra-low latency applications on 5G devices, which does not match the general web application migration requirement.