DevOps

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...

A Virtual Private Cloud (VPC) is a private, isolated network within AWS that allows you to control and manage your cloud resources securely. It acts as a dedicated section of the AWS cloud, tailored to your specific needs, and gives you the flexibility to define IP ranges, create subnets, and establish security protocols. This isolation ensures that your applications, whether internet-facing or private, are hosted securely within a controlled network environment. Key VPC Components and Their Roles: 1. Subnets Subnets are logical subdivisions within a VPC’s IP address range. These divisions allow you to organize and manage your resources more effectively. You can configure public subnets (accessible via the internet) and private subnets (isolated from direct internet access) to optimize both security and resource management. 2. Internet Gateway (IGW) An Internet Gateway serves as the link between your VPC and the outside world, enabling internet acc...