AWS Cloud Practitioner in brief [ Intro ]

 Cloud computing is the on-demand delivery of computer power, database storage, applications, and other IT resources. 

The top ten AWS users based on EC2 are:

1. Netflix
2. Twitch 
3. Facebook 
4. BBC
5. Baidu
6. ESPN
7. Adobe
8. Twitter

                                         The deployment model of the cloud.

1. Private Cloud

2. Public Cloud  

3. Hybrid Cloud

1 Private cloud :-

• Cloud services used by a single organization are not exposed to the public.
• complete control.
• security for sensitive applications.
• meet specific business needs.

  2 Public cloud

• The public cloud is defined as computing services offered by third-party providers over the public Internet

Example

•  Microsoft
• Azure
• Google cloud  

3 Hybrid cloud

• Keep some servers on-premises and extended some capabilities to the cloud  

                                 The Five Characteristics of Cloud Computing 

•  On-demand self-service:
• Users can provision resources and use them without human interaction from the service provider
•  Broad network access:
•  Resources are available over the network and can be accessed by diverse client platforms
•  Multi-tenancy and resource pooling:
•  Multiple customers can share the same infrastructure and applications with security and privacy
•  Multiple customers are serviced from the same physical resources
•  Rapid elasticity and scalability:
•  Automatically and quickly acquire and dispose of resources when needed
•  Quickly and easily scale based on demand
•  Measured service:
•  Usage is measured, and users pay correctly for what they have used 

 Problems Solved by the Cloud.

•  Flexibility: change resource types when needed
•  Cost-Effectiveness: pay as you go, for what you use
•  Scalability: accommodate larger loads by making hardware stronger or adding additional nodes
• Elasticity: the ability to scale out and scale in when needed
•  High availability and fault-tolerance: build across data centers
•  Agility: rapidly develop, test, and launch software applications 

                                                    Thank you for Reading. ☺