AWS Certified Cloud Practitioner — Question 413

A company wants to minimize network latency between its Amazon EC2 instances. The EC2 instances do not need to be highly available.

Which solution meets these requirements?

Answer options

• A. Use EC2 instances in a single Availability Zone.
• B. Use EC2 instances in multiple AWS Regions.
• C. Use Amazon CloudFront with the EC2 instances configured as the source.
• D. Use EC2 instances in the same edge location and the same AWS Region.

Correct answer: A

Explanation

Deploying Amazon EC2 instances within a single Availability Zone provides the lowest possible network latency because the physical distance between the servers is minimized, which is acceptable since high availability is not required. Spreading instances across multiple AWS Regions increases latency, while Amazon CloudFront is a content delivery network for end-users rather than a solution for inter-instance latency. Edge locations do not host standard EC2 instances.