AWS for Beginners: Cloud Essentials Explained | Updated 2025

AWS Basics: Cloud Computing for Beginners

CyberSecurity Framework and Implementation article ACTE

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Vijay ( AWS Cloud Engineer )

Vijay is a passionate AWS Cloud Engineer with expertise in designing, deploying, and managing cloud solutions. He specializes in EC2, S3, RDS, IAM, and serverless technologies, helping businesses optimize performance, security, and cost in the cloud. With a strong focus on automation and scalability, Vijay leverages the latest AWS innovations to build efficient and resilient infrastructures.

Last updated on 17th Mar 2025| 4233

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Introduction to Cloud Computing

Cloud computing has revolutionized the way businesses and individuals manage IT infrastructure. At its core, cloud computing allows users to store, manage, and process data using remote servers, typically hosted over the internet, rather than relying on local servers or personal computers. This flexibility enables users to access computing resources whenever and wherever they need them, offering significant cost, scalability, and performance benefits. Previously, companies would have to invest heavily in physical hardware like servers, networking devices, and data storage equipment. This was expensive and came with the headache of maintenance, upgrades, and downtime, which is why a Amazon Web Services Training can help understand cost-effective and scalable solutions. Cloud computing, however, solves these problems by offering on-demand access to computing resources, eliminating the need for upfront investments in physical infrastructure. The cloud industry has been dominated by several major players, with Amazon Web Services (AWS) being one of the most popular and comprehensive cloud service providers today.

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    What is AWS?

    Amazon Web Services (AWS) is a subsidiary of Amazon, offering a wide array of cloud computing services to businesses, governments, and individual developers. AWS provides scalable, flexible, and cost-effective cloud services that enable users to host applications, store data, and perform computing tasks. It offers everything from computing power and storage solutions to machine learning, artificial intelligence, and networking tools. The beauty of AWS lies in its pay-as-you-go model, meaning you only pay for what you use, making it an excellent choice for businesses of all sizes. AWS is renowned for its reliability, security features, and the vast range of services it offers. Some of the most popular services on AWS include:

    • Amazon EC2 for scalable computing power
    • Amazon S3 for object storage
    • Amazon RDS for relational databases
    • Amazon Lambda for serverless computing

    AWS operates in a global network of data centers known as Availability Zones (AZs), making it highly available and fault-tolerant.


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    Key AWS Services You Need to Know

    AWS offers an overwhelming number of services, but as a beginner, there are several core services you should familiarize yourself with to get started. Below is an overview of some key AWS services:

    Amazon EC2 (Elastic Compute Cloud)EC2 is a service that provides scalable computing capacity in the cloud. It allows you to run virtual servers, called instances, to host your applications, websites, or any other service that requires processing power. EC2 instances come in various configurations based on the amount of CPU, memory, and storage you need.

    Amazon S3 (Simple Storage Service) S3 is a scalable object storage service that can retrieve data anytime. It’s highly durable, secure, and perfect for storing data like backups, media files, and web assets. S3’s flexibility allows you to store files from a few kilobytes to petabytes of data.

    Amazon RDS (Relational Database Service) RDS is a managed service that simplifies the setup, operation, and scaling of relational databases in the cloud. It supports several database engines, including MySQL, PostgreSQL, Types of Joins in SQL Server , and Oracle. RDS automates routine tasks such as backups, patch management, and scaling.

    Amazon Lambda Lambda is a serverless computing service that allows you to run code without provisioning or managing servers. You upload your code, and Lambda automatically executes it. This is perfect for running lightweight applications and microservices.

    Amazon VPC (Virtual Private Cloud) VPC allows you to create a private, isolated network within the AWS cloud. This service controls network settings, including IP address ranges, subnets, and routing tables. VPC is essential for setting up secure environments for your applications.

    Setting Up Your AWS Account

    Before you can start using AWS, you need to create an AWS account. Here’s a step-by-step guide to getting started:

    Step 1: Sign Up for AWS

    • Go to the AWS homepage (https://aws.amazon.com/).
    • Click on “Create an AWS Account.”
    • Fill in your email, password, and AWS account name.
    • Provide your contact information, including billing details.
    • Select a support plan. If you’re starting, the Basic Support plan is free.
    • Complete identity verification if required (you may need to enter a credit card for verification purposes, even using free-tier services).
    • Once your account is created, you can access the AWS Management Console.

    Step 2: Secure Your Account

    It’s essential to secure your AWS account from unauthorized access. You can set up:

    • Multi-Factor Authentication (MFA): To add an extra layer of security.
    • IAM (Identity and Access Management): To create and manage users and permissions within your AWS account.
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