I want to know about the IAAS model in Cloud Computing.

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What is an Infrastructure as a Service in the context of Cloud Computing? What is the IAAS provider's role in such a setup? What is the minimal requirement to implement the IAAS model?Iaas is often offered as a horizontally integrated service?What does  horizontal integration mean here ?Which are the other computing components that the service integrates with?IAAS provider's role in such a setup? What is the minimal requirement to implement the IAAS model?Iaas is often offered as a horizontally integrated service?What does  horizontal integration mean here ?Which are the other computing components that the service integrates with?

 

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I want to know about the IAAS model in Cloud Computing.

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Cloud computing is a service. It has huge number of remote servers in the same network. It allows centralized data storage. You can access the online services of computer or resources because of cloud computing service.
There are 4 Service models of cloud computing.
1. Infrastructure as a Service (IaaS)
2. Platform as a Service (PaaS)
3. Software as a Service (SaaS)
4. Unified Communication as a Service

In most of the service models providers of IaaS offers Computers (whether they are physical or virtual machines) and many other resources.
IaaS Cloud offers other resources such as-
a. Virtual machine disk image library
b. File or object storage
c. Firewall
d. Ip addresses
e. Load Balancer
f. Virtual Local area networks
IaaS cloud providers supply resources on demand. These resources are provided from data centers. For deploying any application, cloud users have to install operating system and the application software on cloud infrastructure. In this type of model, cloud user has to maintain the operating system as well as the software application deployed on cloud infrastructure. The billing of this type of services is done on utility computing basis. This means that they bill for the services or resources which you have consumed.

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