Day 2 – Core AWS Services

🌟 Day 2: Core AWS Services

Goal: Get familiar with the main services AWS offers — these are the tools you’ll use again and again.


✅ What are “Core AWS Services”?

Core services are like the main building blocks of AWS.
Just like you need bricks, cement, and wood to build a house,
You need services like EC2, S3, RDS, IAM, and VPC to build anything on AWS.

Don’t worry — we’ll keep it super simple.


🧱 1. EC2 (Elastic Compute Cloud)

🖥️ Think of EC2 as a virtual computer you can rent from AWS.

  • You can use it to run apps or websites.
  • It’s just like your laptop — but in the cloud.
  • You can choose how powerful it is (like picking RAM and CPU).

Example: Want to host a game server or a website? EC2 can run it.


📦 2. S3 (Simple Storage Service)

💾 Think of S3 as your cloud hard drive.

  • You can store files like images, videos, or documents.
  • It’s safe, reliable, and can hold huge amounts of data.
  • Many apps and websites use S3 to store things in the background.

Example: Storing user profile pictures or backups.


🔐 3. IAM (Identity and Access Management)

🧑‍💻 IAM helps you control who can do what in your AWS account.

  • You can create users and give them permissions.
  • You can allow someone to access only S3 but not EC2.
  • Keeps your AWS account secure and organized.

Example: Your developer can access servers, but your intern only sees billing info.


🌐 4. VPC (Virtual Private Cloud)

🛡️ VPC is like your own private network in the cloud.

  • It’s a secure place where your AWS resources live.
  • You control how they connect to each other and the internet.
  • Keeps your systems safe and isolated.

Example: A private area where your database stays hidden from the internet.


🗄️ 5. RDS (Relational Database Service)

🗃️ RDS is a managed database service.

  • It lets you use databases like MySQL, PostgreSQL, or SQL Server.
  • AWS handles the setup, backups, and updates.
  • You just focus on using the data — not maintaining it.

Example: An app that saves user data in a database.


💡 Bonus: Others You Might Hear About Later

ServiceWhat It Does
LambdaRun code without a server
CloudFrontSpeed up websites worldwide
CloudWatchMonitor your AWS resources
SNS/SQSMessaging and notifications

We’ll go deeper into these on later days!


🧪 Mini Task for Today:

No need to do anything technical yet! Just:

  1. Go to aws.amazon.com
  2. Hover over “Products” in the top menu
  3. Look for Compute, Storage, and Security — and read the short descriptions

This helps you get familiar with where these services are.


📝 Summary

  • Core AWS services = basic tools for running things in the cloud
  • EC2 = virtual computer
  • S3 = cloud storage
  • IAM = user and permission control
  • VPC = private network
  • RDS = database in the cloud

🔁 Navigate the Series:

⬅️ Day 1: Introduction to AWS
➡️ Day 3: Understanding AWS Global Infrastructure

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