Muhammad Yeasin

What is AWS ?

It is a amazon cloud computing service. It is a computer resource in cloud and provide services for individuals, start-ups, governments and enterprises for computing, storage data, application deployment and hosting and many other services. It has pay as go model which means a client need to pay only how many resources it is using and depending on processing the data.

How many model it has ?

It has 3 kinds of models.

• IaaS
• PaaS
• SaaS

What is IaaS ? How it works ?

It is a Infrastructure as a Service. It gives capability to customer to use resources in cloud as its product development infrastructure. A customer can use this resources from amazon cloud to host it’s application, deployment, storage data, processing of data and optimize its resources and can create virtual resources for re-sale.

What is PaaS and how it works ?

It is Platform as a Service. It provides databases, data flow engines, email services and etc. An application use this resources to make it dynamic and scale able.

What is SaaS and how it works ?

It is Software as a Service. 3rd party customer’s can provide software solutions for other customers using this model, it is a service oriented model where one customer charge another customer for its services. Mostly for startups, it is the best model. Now today’s world, SaaS solutions model is the best model for software companies, enterprise and other business companies.

What is AWS EC2 ?

It stand for Elastic Computing Cloud, it provides user to create virtual machines regarding their requirements or application requirements. We call it ‘instances’ and it can launch in a minutes. We can scale this instances according to demands and can choose windows or linux operating systems for our instances.

What is AWS S3 ?

It is a storage from amazon cloud. It is called “S3 bucket”. In this bucket, customer or user can store its server less application, images, files etc. Applications developed by user or customer can access those files from S3 bucket and can provide authorized and non authorized access for stored files from S3 bucket.

What is AWS Management Console ?

It is a user interface from Amazon cloud. With this user interface user can manage services provided from amazon cloud, activate and deactivate its services, can see and manage cost of its services and performances.

What is AWS Identity Access Management (IAM) ?

It is a user and role management from amazon cloud system for users. With this service, root user can create many users for their application or software, cloud access and resource access. All users always do not need to have access in all services and files, so root user can create user with different role.

What is AWS Lambda ?

It is a server less computing provided by amazon cloud. With this service, user do not need to run code in a server, code will execute only when it is trigger. Lambda does not run 24/7 and it is cost user 0. It is do not run code until it is trigger.

What are the difference between AWS Lambda and EC2 instance ?

AWS Lambda	EC2 Instance
It executes maximum 15 minutes.	It can executes unlimited times.
Do not need to manage this service.	Need to manage this service because user need to manage operating system for an EC2 instance. So management is high.
User will pay only code runs. Do not need to pay always.	User will need to pay for every hour when server is on.
For small application, it can be best choice.	For large enterprise application, it is the best solution.

What is AWS VPC ?

It is called AWS Virtual private cloud. It is a private virtual network inside amazon cloud. It gives possibility to user to make public and private accessible for the resources. User can manage their network flow, flow of traffic inside this VPC system. User can create dedicated virtual IP and firewall for their resources. User can manage route and can handle highly secure architecture for their application.

What is Route 53 ?

It is a domain name system provided by AWS. It translates IP address to human readable domain address like “www.mydomain.com” or etc. An IP address can pointing to a domain name using route 53.