A company wants to deliver static content such as images and videos with low latency to users around the world. Which component of the AWS global infrastructure should the company use?
A question asking which global-infrastructure component to use for low-latency delivery of static content worldwide.
Multiple Availability Zones
Multiple AZs are a building block for achieving high availability and fault tolerance within a single Region.
Low-latency delivery to users worldwide requires geographically distributed delivery locations, which AZs do not address, so it is incorrect.
A large Amazon EC2 instance in a single Region
A large EC2 instance increases compute power, but the origin remains in one location.
Latency to distant users depends on the geographic distance to the origin, so making the server bigger does not achieve low-latency delivery; it is incorrect.
Edge locations (Amazon CloudFront)
Correct. Edge locations are CloudFront delivery points placed in many locations worldwide. By caching content at an edge near the user, content is delivered with low latency without fetching from the origin every time. They are ideal for global delivery of static content.
The AWS root account
The root account is the top-level administrator account created when an AWS account is created, a concept related to authentication and management.
It is unrelated to content delivery and is not a means of low-latency delivery, so it is incorrect.
The keywords “worldwide,” “low-latency delivery,” “static content,” and “CDN” point to edge locations / CloudFront. For availability within a Region use “multiple AZs”; for geographic delivery use “edge.”