Virtualisation

What is a virtual machine (VM)?

• A physical computer

• A software-based emulation of a physical computer

• A mobile device

• A server operating system

What is the primary purpose of a hypervisor in virtualization?

• To create virtual hard disks

• To manage the network connections

• To allocate hardware resources and manage virtual machines

• To manage the guest operating systems

In virtualization, what is the guest operating system?

• Virtual machines can communicate directly with the physical hardware.

• Virtual machines share the same resources and cannot be isolated.

• Virtual machines run independently and are isolated from each other and the host system.

• Virtual machines can only be accessed locally.

What is a snapshot in virtualization?

• A screenshot of the virtual machine’s desktop

• A copy of the virtual machine’s entire hard disk

• A point-in-time image of the virtual machine’s state

• A backup of the host operating system

Which component allocates hardware resources to virtual machines?

• Guest operating system

• Hypervisor

• Host operating system

• Virtual disk manager

In virtualization, what is a host system?

• The main operating system running on a physical machine

• The operating system installed on a virtual machine

• The operating system running on a mobile device

• The operating system running on a remote server

Which virtualization technology is developed by VMware?

• Hyper-V

• VirtualBox

• KVM

• vSphere

How does virtualization contribute to resource efficiency in data centers?

• By increasing the number of physical servers required

• By isolating virtual machines from the network

• By improving the performance of individual virtual machines

• By allowing multiple virtual machines to run on a single physical machine

Which type of virtualization allows a virtual machines to share the same operating system kernel?

• Full virtualization

• Paravirtualization

• Hosted virtualization

• Containerization

How can virtual machines improve disaster recovery?

• By providing a backup of the host operating system

• By reducing the number of virtual machines on a physical machine

• By enabling VM migration to another physical host in case of failure

• By increasing the isolation between virtual machines