Cloud computing is the delivery of computing services - including servers, storage, databases, networking, software, analytics -over the Internet (“the cloud”).

Amazon Web Services is a cloud computing platform from Amazon that provides a wide array of cloud computing services which is an on-demand cloud computing platform based on subscription.

Different Services

Amazon Web Services offers many services which are broadly categorized into

AWS Compute Services

AWS Compute services provides the processing power needed to run your application. The AWS compute portfolio provides tools to develop, deploy, run, and scale your applications in the AWS Cloud.

AWS Compute Service Examples

• Amazon Elastic Compute Cloud (Amazon EC2)

• AWS Elastic Beanstalk

• AWS Fargate

• AWS Lambda

Storage

AWS provides data storage service for hold the information used by your applications. They provide reliable, scalable, and secure options to store, transmit, and back up your data.

AWS Storage Service Examples

• Amazon Simple Storage Service (Amazon S3)

• Amazon Elastic Block Store (Amazon EBS)

• Amazon S3 Glacier

Networking & Content Delivery

AWS provides the broadest and deepest set of networking services with the highest reliability, most security features, and highest performance.

AWS Networking & Content Delivery Service Examples

• Amazon Virtual Private Cloud (Amazon VPC)

• Amazon Route 53

• Amazon CloudFront

Database

AWS database services offers cost efficient, highly secure and scalable database instance in the cloud.

Service Examples

• Amazon Aurora

• Amazon Relational Database Service (Amazon RDS)

• Amazon DynamoDB

Security, Identity & Compliance

These services helps in monitoring as safe environment for your AWS resources by providing limited access to specified users.

Service Examples

• AWS Identity and Access Management (IAM)

• Amazon Inspector

• AWS Shield

• AWS Security Hub

AWS Cost Management

Use these services to access information about your costs and usage, organize your costs across business lines, understand cost drivers and usage trends, set budgets, and optimize your AWS usage.

Service Examples

• AWS Cost Explorer

• AWS Budgets

• AWS Cost and Usage Report

• Cloud Watch

Analytics

Analytics services enable you to transform raw data into meaningful information. They help you collect, visualize, and analyze your data to get the answers you need to run your business.

Service examples

• Amazon Athena

• Amazon Redshift

• Amazon Kinesis

AWS - Regions & Zones

Regions

Regions in AWS is a physical location around the world where the data centers are clustered.

• Each AWS region consists of multiple , isolated, and physical separate Availability Zone. within geographic area.

Imagine that your application is deployed in a data center in London. What would be the challenges?

Challenge 1 : Slow access for users from other parts of the world (high latency)

Challenge 2 : What if the data center crashes? Your application goes down (low availability)

Let's add in one more data center in London

Multiple Data centers

What would be the challenges?

• Challenge 1 : Slow access for users from other parts of the world

• Challenge 2 (SOLVED) : What if one data center crashes? Your application is still available from the other data center.

• Challenge 3 : What if entire region of London is unavailable? Your application goes down

Multiple Regions

Let's add a new region : Mumbai

What would be the challenges?

• Challenge 1 (PARTLY SOLVED) : Slow access for users from other parts of the world You can solve this by adding deployments for your applications in other regions.

• Challenge 2 (SOLVED) : What if one data center crashes? Your application is still live from the other data centers.

• Challenge 3 (SOLVED) : What if entire region of London is unavailable? Your application is served from Mumbai

Regions Advantages

• High Availability

• Low Latency

• Adhere to government regulations

Choosing the right region(s) based on:

• Where are your users located?

• Where is your data located?

• Regulatory and security compliance needs

Availability Zones

An Availability Zone (AZ) is one or more discrete data centers with redundant power, networking, and connectivity in an AWS Region.

• Each AWS Region has at least two Availability Zones

• All AZ’s in an AWS Region are interconnected with high-bandwidth, low-latency networking, over fully redundant, dedicated metro fiber providing high-throughput, low-latency networking between AZ’s.

AWS Identity and Access Management

AWS Identity and Access Management (IAM) enables you to manage access to AWS services and resources securely.

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AWS IAM is all about Authentication(Is it a right user?) and Authorization(Do they have the right access).

• Using IAM, you can create and manage AWS users and groups, and use permissions to allow and deny their access to AWS resources.

• IAM is a feature of your AWS account offered at no additional charge. You will be charged only for use of other AWS services by your users.

• The 4 important concepts in IAM is

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