1. What is Amazon EC2? Amazon Elastic Compute Cloud (EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. 2. What are the different types of EC2 instances? EC2 instances are categorized into different families based on their intended use case. The main categories are 1 . General Purpose (e.g., t3, t3a, m5, m5a), Compute Optimized (e.g., c5, c5n), Memory Optimized (e.g., r5, r5a), Storage Optimized (e.g., i3, d2), and Accelerated Computing (e.g., p3, g4). 3. What is the difference between stopping and terminating an EC2 instance? When you stop an instance, it shuts down and you can restart it later, preserving all data on the instance store and EBS volumes. When you terminate an instance, it is permanently deleted, and you lose all data stored on the instance store. EBS volumes can be retained depending on thei...