Question 33
Domain 3: Cloud Technology and ServicesA company wants to reduce latency for users who access its content from many geographic regions. Which AWS global infrastructure component is primarily designed to improve performance by serving content closer to end users?
Correct answer: B
Explanation
Edge locations are AWS sites used by services such as Amazon CloudFront and AWS Global Accelerator to improve performance for end users by bringing content or traffic handling closer to them. — 05-AWS_Core_Services.md
Why each option is right or wrong
A. Availability Zones that replicate content within a single Region for local users
Availability Zones are isolated locations within a Region, not the primary sites used to serve content closer to global end users.
B. Edge locations used by Amazon CloudFront and AWS Global Accelerator
The source identifies edge locations as a key AWS global infrastructure term and ties them to Amazon CloudFront and AWS Global Accelerator. In this scenario, the goal is lower latency for geographically distributed users, which is the benefit of using edge locations to bring delivery closer to end users.
C. Local Zones that store cached copies for worldwide internet delivery
The source material names edge locations, Amazon CloudFront, and AWS Global Accelerator for this benefit, not Local Zones.
D. AWS Regions that route requests directly from the nearest data center
Regions are separate geographic areas for deploying resources, not the primary infrastructure component for serving content nearer to end users.