An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate and share data with each other.

What is the difference between SQL and NoSQL?

SQL databases are relational and use structured tables with fixed schemas. NoSQL databases are non-relational, flexible, and store data in formats like JSON documents or key-value pairs.

What does RESTful mean?

RESTful refers to web services that follow the REST (Representational State Transfer) architecture, typically using standard HTTP methods like GET, POST, PUT, and DELETE.

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AWS Global Infrastructure in Cloud Computing

Learn about AWS Global Infrastructure in this comprehensive Cloud Computing tutorial. Learn the differences between Regions, Availability Zones (AZs), and Edge Locations, and how they contribute to a highly available architecture.

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Infrastructure Hub

The physical footprint of AWS.

Quick Quiz //

Which AWS component is used primarily for caching content?

Before deploying applications, you must choose where they physically reside. AWS's infrastructure is designed for maximum fault tolerance and low latency.

1Regions and Availability Zones

A Region is a geographic area (like 'US East' or 'Europe'). Each Region consists of multiple, isolated Availability Zones (AZs). By deploying your application across multiple AZs within a single Region, you ensure that if one data center goes down due to a power outage or natural disaster, your application remains online.

2Edge Locations

Edge Locations are separate from Regions. They are mini-data centers located in major cities worldwide. Services like Amazon CloudFront (Content Delivery Network) and Route 53 (DNS) use Edge Locations to cache static assets (like images and videos) closer to the user, drastically reducing latency.