VMware - Basics about Virtualization

1) What is virtualization ?

Virtualization refers to the act of creating a virtual version of something. It can apply to Computer hardware platforms , operating systems , storage devices , applications or computer network resources. Server virtualization is at the heart of the Virtualization .Virtualization uses software to simulate the existence of hardware and create a virtual computer system.

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 2) Why virtualization ?

Virtualization lets you run multiple virtual servers or desktops on a single physical machine (host), sharing the resources of that single computer across multiple environments.

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 3) Is Virtualization same as Cloud Computing ?

Cloud computing is not the same thing as virtualization; rather, it’s something you can do using virtualization. Cloud computing, also known as on-demand computing, is a kind of internet-based computing, where shared resources and information are provided to computers and other devices on-demand. 

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 4) What are the types of Virtualization ?

Server Virtualization 

Network Virtualization 

Software-Defined Storage 

Desktop Virtualization 

 5) What is a Hypervisor?

A hypervisor or virtual machine monitor (VMM) is a piece of computer software, firmware or hardware that creates and runs virtual machines. The hypervisor serves as a platform for running virtual machines and allows for the consolidation of computing resources.Software called the hypervisor is installed on the physical hardware in a virtualized datacenter, and acts as a platform for virtual machines. The hypervisor provides physical hardware resources dynamically to virtual machines as needed to support the operation of the virtual machines. The hypervisor allows virtual machines to operate with a degree of independence from the underlying physical hardware.

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