MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Virtualization describes a technology in which an application, guest OS or data storage is abstracted away from the true underlying hardware or software. A key use of virtualization technology is server virtualization, which uses a software layer–called a hypervisor</a–to emulate the underlying hardware.

Detailed explanation-2: -1 Answer. a) It provides a logical name for a physical resource, and on-demand provides an indicator of that physical resource.

Detailed explanation-3: -Virtualization relies on software to simulate hardware functionality and create a virtual computer system. This enables IT organizations to run more than one virtual system – and multiple operating systems and applications – on a single server. The resulting benefits include economies of scale and greater efficiency.

Detailed explanation-4: -Hardware based virtualization implements a whole machine in software and therefore can run virtual machines of a given hardware platform on an arbitrary host system. Hardware based virtualization relies on the host system’s processor to call the hypervisor when critical instructions are executed by a virtual machine.

Detailed explanation-5: -A hypervisor is a crucial piece of software that makes virtualization possible. It creates a virtualization layer that separates the actual hardware components-processors, RAM, and other physical resources-from the virtual machines and the operating systems they run.