Unit-2

What is a Virtual Machine (VM)?

• A physical machine with multiple operating systems
• A software-based emulation of a physical computer
• A cloud storage system
• A hardware-based networking device

Which of the following best describes virtualization?

• A technique to merge multiple physical machines into one
• A method of creating software-based representations of physical resources
• A way to replace software with hardware-based solutions
• A method of designing physical server infrastructure

What is the primary purpose of virtualization?

• To increase the number of physical servers
• To reduce dependency on software
• To create isolated environments for multiple operating systems
• To replace computer hardware

Which of the following is NOT a common use case of virtual machines?

• Running an older application on a new OS
• Trying out a new operating system
• Increasing physical hardware resources
• Spinning up new environments for development and testing

What is a Process VM?

• A VM that supports an OS and many user processes
• A VM created for an individual process and destroyed once it terminates
• A VM that shares hardware with a host OS
• A VM that runs under a hypervisor

Which type of VM supports multiple virtual machines and runs directly on the hardware?

• Hosted VM
• Hybrid VM
• Traditional VM
• System VM

What is a Hosted VM?

• A VM that runs under a host operating system
• A VM that shares resources dynamically
• A VM that runs without a hypervisor
• A VM that directly runs on hardware without an OS

How does virtualization help in cost savings?

• By increasing the number of physical servers
• By reducing the need for physical infrastructure
• By eliminating software licensing costs
• By increasing power consumption

Virtual machines improve security by:

• Allowing different OSs to run on the same hardware
• Isolating applications and guest OS environments
• Increasing physical memory availability
• Merging multiple systems into one

What is resource allocation in virtualization?

• Monitoring resource usage in virtual environments
• Distributing physical resources among VMs
• Eliminating the need for hardware resources
• Restricting VM access to the CPU