AWS Concepts – Demo

As a developer, you will need to know various cloud concepts if you aspire to be successful in your field, not to mention do a great job. There are many concepts to understand in cloud computing, particularly when dealing with AWS. Here are some of the common concepts you will encounter.

  1. S3: Scalable cloud storage – Static assets live here
  2. EC2: Virtual cloud servers – Loads run here
  3. RDS: Managed relational database service – data is stored here
  4. ROUTE53: Scalable DNS and domain name registration
  5. VPC: Assists to maintain isolated cloud resources
  6. CLOUDFRONT: Worldwide content delivery network
  7. DYNAMODB: Managed no-SQL database
  8. CLOUDWATCH: Helps to monitor resources and applications
aws-concepts

ELASTIC IP

Elastic IP is a public IP that can be linked to EC2 instances. If a particular EC2 instance is terminated, it stays put so that it can be remapped to associate with an other instance .

CLOUDWATCH

This is a monitoring service for other AWS services.

AUTOSCALING GROUP

Automatically shrinks or expands a pool of instances based on set rules

LOAD BALANCER

A routing device that maintains a consistent DNS entry and balances requests to multiple instances.

HOW AWS WORKS

AWS can be split into different services each configured in different ways depending on the user’s needs and business model. The AWS portfolio has more than 100 different services all for different functions like computing, databases, infrastructure management, application development, security among others.
Some of the categories are;

  • Compute
  • Storage database
  • Migration
  • Data management
  • Networking
  • Hybrid cloud
  • Development tools
  • Management
  • Monitoring
  • Security
  • Governance
  • Big data management
  • Analytics
  • AI
  • Analytics
  • Mobile development
  • Messaging and notification

AVAILABILITY OF AWS

Amazon provides AWS from various data centers spread across zones named as availability zones (AZ) spread across the world.

Amazon Elastic Block Store provides block level storage volumes for persistent data storage to be used with EC2, while Amazon Elastic File System offers managed cloud file storage.

Businesses can choose one or more AZs either for compliance issues, or to be able to reach their customers easily.

An AWS customer can put up VMs and replicate data in different AZs in order to achieve high reliable infrastructure capable of withstanding disasters or failures of an individual server or even an entire data center.

STORAGE

Amazon Simple Storage Service (S3) provides scalable storage for data backup, archiving and analytics.

Amazon Elastic Block Store provides block level storage volumes for persistent data storage to be used with EC2, while Amazon Elastic File System offers managed cloud file storage.

A client can choose to migrate data to the cloud via storage transport devices such as AWS snowmobile, or AWS storage gateway to enable access cloud data.

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