Difference between an Edge Location and Availability Zone

Question

I am looking at the AWS Global Infrastructure and a bit confused between Edge Location and Availability Zones. How are they similar and different?

Answer 1

Both the Edge Locations (EL) and Availability Zones (AZ) are AWS Data Centers, but EL are primarily used for caching of the data to provide better user experience with low latency, the AZ are used for hosting servers, websites, applications, softwares, Big Data processing, analytics and a wide variety of use cases.

AZ are big and few when compared to the EL. Also, the EL are closer to the user providing better latency when compared to the AZ.

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