Monday, 12 July 2021

Basic Terminologies in AWS Cloud | Regions | Availability Zones | Edge Locations | Amazon Web Services - AWS Interview Questions

Region à A region is basically a geographical area. This is actually a physical location around the world where they cluster data centers. Each of these group of logical data centers are called as an Availability Zone. Each region consists of 2 (or more) availability zones.

Availability Zone à It is simply a data center. These AZs is one or more discrete (separate and distinct) data centers with redundant power, networking, and connectivity in an AWS Region. Each AWS Region consists of multiple, isolated, and physically separate AZs within a geographic area. AZs configured across multiple data center allows or provides customers the potential to operate production applications and databases that are more highly available, fault tolerant, and scalable than would be possible from a single data center.

Edge Location à They are CDN (Content Delivery Network) endpoints for CloudFront. An edge location is the nearest point to the consumer(user) who is consuming the AWS service. In other way, an edge location is where end users access services located at AWS. They are located in most of the major cities around the world and are specifically used by CloudFront (CDN) to distribute content to end user to reduce latency. Edge locations are minor data center kind of setup designed to deliver services with the lowest latency possible.

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