AWS Basics What is Amazon Web Services | iCert Global

Netflix did not select AWS at random. They did so because AWS provided them with greater flexibility and numerous useful tools. Netflix had one large system with one code base to support numerous activities before they transitioned to the cloud. Scaling and changing quickly was not easy for it. With their growth, their previous data centers could no longer support them. AWS enabled them to reach people all over the globe without having to create new servers everywhere.

What is AWS?

Amazon Web Services, abbreviated as AWS, is a web service of Amazon. It offers a number of tools you can utilize to develop and execute applications in the cloud. These tools work together to generate strong and dynamic programs.

History of AWS

AWS started out in 2006 with Amazon S3, which revolutionized how companies utilized storage. Amazon EC2 (Elastic Compute Cloud) followed, enabling individuals to lease virtual computers rather than purchasing computers. AWS introduced additional services such as AWS Lambda, where individuals can execute code without server management. AWS currently boasts hundreds of services, including machine learning, and is one of the largest cloud companies globally.

What is AWS used for?

People and companies use AWS for several purposes, including:

• Hosting Applications: Host large business applications or websites with ease.

• Keeping Data Safe: Secure all forms of data.

•Numerous Services Offered: AWS offers databases, machine learning capabilities, networking, analytics, and security services.

How does AWS operate?

AWS uses an international network of data centers known as Regions and Availability Zones to achieve reliability and rapid access.

• Virtual Private Cloud (VPC): You can create private and secure networks in AWS.

• Compute and Storage: Amazon EC2 offers virtual computers, and Amazon S3 offers you elastic and durable cloud storage.

• Auto Scaling and Load Balancing: Automatically scale resources to match demand and load balance traffic to ensure apps remain fast and available.

• Management Console: A simple web-based tool to launch services, review expenses, and manage security.

• High Availability: AWS keeps applications available in spite of failing parts by using backup and failover.

AWS Fundamentals

There are certain fundamental concepts that need to be understood before implementing some AWS services to make AWS work effectively. Learn about Global Network Infrastructure, Regions, and Availability Zones to get the most out of AWS. These fundamentals secure your apps, keep them fast, and poised to scale. AWS possesses numerous data centers all over the globe to provide fast and reliable service.

The key points are as follows:

• Regions: AWS divides its services into segments that are called Regions, according to geographical location. Each Region contains large data centers that give fast service with minimal lag, creating a smooth experience for the user.

• Availability Zones (AZs): These are separate data centers within a Region, located far apart so that no disaster can affect all of them. This keeps AWS services running and allows for easier correction of problems.

•Global Network Infrastructure: AWS possesses a network around the globe to enable services to reach and scale. The network enables data to move rapidly and securely.

Studying these ideas enables you to create scalable, reliable, and accessible anywhere on the globe AWS applications.

What Are the Services Provided by AWS?

AWS provides several services to help you build and execute cloud applications. The following are the major service categories and some of the most well-known services in each category:

1. Computing Services

These back up your apps and tasks:

• EC2 (Elastic Compute Cloud): Lease virtual computers to run applications.

• Lambda: Execute code without server management (serverless).

• Elastic Beanstalk: Deploy and host applications with ease.

• Amazon LightSail: Simple cloud servers for quick deployment.

2. Storage Services

Services to safeguard your information securely and safely:

• S3 (Simple Storage Service): Store any data you want.

• Elastic Block Store: long-term storage for EC2 instances.

• Amazon Glacier: Affordable long-term data storage.

• AWS Snowball: Move big data by shipping it.

3. Database Services

To manage different kinds of databases:

• Amazon Aurora: High-performance relational database.

• Amazon RDS: Easy-to-maintain cloud databases.

• Amazon DynamoDB: High-performance NoSQL database.

• Amazon RedShift: Big data analysis data warehouse.

4. Migration Services

How to transfer your data to AWS:

• AWS Database Migration Service

• AWS Snowball

5. Connecting and Sharing Information

Manage your network and have content delivered faster:

• Amazon Route 53: Domain name system (DNS) service.

• AWS CloudFront: Content delivery network (CDN) for fast website loading.

6. Management Tools

Guide you in monitoring your AWS resources:

• AWS CloudWatch: Track your resources and apps.

• AWS CloudFormation: Create resources from templates.

• AWS CloudTrail: Monitor API calls and user activity.

7. Security, Identity, and Compliance

Lock down your cloud and make it secure:

• AWS IAM: User permissions management.

• AWS KMS: Encrypt data securely.

• AWS Shield: Protect from cyberattacks.

8. Messaging Services

Pass messages and notifications between individuals or services:

• Amazon SQS: Message queuing service.

• Amazon SNS: Notification service.

• Amazon SES: Email sending service.

• Amazon Pinpoint: Messaging and user interaction.

Most Important AWS Services to Learn

• Amazon EC2: Scalable computing power to host apps anywhere.

• Amazon S3: Low-latency and scalable cloud storage.

• AWS Lambda: Serverless computing that is event-driven.

• Amazon RDS: Simple-to-use cloud databases.

• Amazon VPC: Create your own private networks in AWS.

Applications of AWS

AWS allows many organizations to function more efficiently and create quicker:

• Startups use AWS to lower hardware expenses and launch apps rapidly.
• Big companies use AWS to manage their infrastructure so that they can concentrate on developing new products.

Real-life examples:

• Netflix: Uses AWS to host and stream videos seamlessly to millions of people worldwide.

• Airbnb: Depends on AWS for its online platform and expanding customer base.

• The Jet Propulsion Laboratory of NASA uses AWS to analyze a lot of space data.

• Capital One: Leverages AWS for secure and compliant banking.

How to build apps in AWS

Before you create your application, consider what it requires. Does it require controlling the computer systems? Will it require a database? Do you have to monitor how it's functioning?

Once you know what your application requires, you can choose the appropriate AWS service.

For instance, if you wish to release an application without worrying about servers or infrastructure, you can release using AWS Elastic Beanstalk. You just have to upload your application, and AWS will take care of everything else.

How to obtain AWS certification? 

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Conclusion

Amazon Web Services (AWS) provides a robust and versatile platform to create and run applications in the cloud. AWS provides numerous services that enable businesses of all kinds to innovate and expand at optimal efficiency. Having a general understanding of AWS helps you to make the most of it for your career and work.

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