AWS Global Infrastructure Flashcards
What is a region?
An AWS Region is a physical location in the world where AWS have multiple AZs.
Each region is completely independent. Each Availability Zone is isolated, but the Availability Zones in a region are connected through low-latency links.
Each region consists of 2 or more availability zones.
What is an AZ?
An Availability Zone consists of one or more discrete data centers, each with redundant power, networking, and connectivity, housed in separate facilities.
An Availability Zone is represented by a region code followed by a letter identifier; for example, us-east-1a.
What is an endpoint?
When you work with an instance using the command line interface or API actions, you must specify its regional endpoint.
To reduce data latency in your applications, most Amazon Web Services offer a regional endpoint to make your requests.
An endpoint is a URL that is the entry point for a web service.
For example, https://dynamodb.us-west-2.amazonaws.com is an entry point for the Amazon DynamoDB service.
What is an edge location?
Edge locations are Content Delivery Network (CDN) endpoints for CloudFront.
There are many more edge locations than regions.
Currently there are over 100 edge locations.
What are Regional Edge Caches?
A Regional Edge Cache has a larger cache-width than each of the individual Edge Locations.
Regional Edge Caches sit between your CloudFront Origin servers and the Edge Locations.
