DATABASE FUNDAMENTALS
CLOUD COMPUTING AND DATABASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Virtualization is software
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Virtualization is computer software running applications
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Virtualization is a software representation in the form of an underlying simulation of hardware that makes it possible to run multiple virtual machines on a single host.
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Virtualization is a computer application that provides a type of service (service) and which handles data sets (such as databases) and has a scalable processor and RAM.
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All are correct
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Detailed explanation-1: -Which of the following statements about virtualization is true? Virtualization enables you to run multiple operating systems and applications on a single computer.
Detailed explanation-2: -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-3: -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-4: -Full virtualization is a virtualization technique used to provide a VME that completely simulates the underlying hardware. In this type of environment, any software capable of execution on the physical hardware can be run in the VM, and any OS supported by the underlying hardware can be run in each individual VM.