Podcast
Questions and Answers
Which of the following best describes a Virtual Machine (VM)?
Which of the following best describes a Virtual Machine (VM)?
- A type of operating system that directly controls the hardware.
- A dedicated server for running specific applications.
- Software that runs within a host OS, emulating a computer system with virtual resources. (correct)
- A physical computer system with dedicated hardware resources.
A virtual machine's resources are physical, meaning they are not shared with the host operating system.
A virtual machine's resources are physical, meaning they are not shared with the host operating system.
False (B)
What is the primary function of a Virtual Machine Manager (VMM) or hypervisor?
What is the primary function of a Virtual Machine Manager (VMM) or hypervisor?
to create and run virtual machines
A Virtual Machine runs as an independent ______ within the host operating system.
A Virtual Machine runs as an independent ______ within the host operating system.
Match the following terms with their descriptions:
Match the following terms with their descriptions:
Flashcards
What is a Computer?
What is a Computer?
An electronic device that performs tasks, from desktops to smartphones.
What is Hardware?
What is Hardware?
The physical parts of a computer, such as the processor and memory.
What is an Operating System (OS)?
What is an Operating System (OS)?
Software that controls the hardware, such as Windows, Linux, or MacOS.
What is a Virtual Machine (VM)?
What is a Virtual Machine (VM)?
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What is a Virtual Machine Manager (VMM)?
What is a Virtual Machine Manager (VMM)?
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Study Notes
- A computer is an electronic device that gets work done and uses hardware. Hardware includes physical components, such as processor, memory, hard drive, and network card.
- An operating system(OS) controls the hardware. Examples are Windows, Linux, MacOS, Android, and iOS.
Virtual Machine (VM)
- Software runs in user space in the existing OS (host OS) as an independent process.
- They create a virtual environment that emulates a computer system. This includes its own virtual cpu, memory, network interface and storage.
- VMs can house many different OSs simultaneously called guest OSs.
- Virtual Machine Manager (VMM) is also called a hypervisor. Examples are Oracle VirtualBox and VMWare.
- A VMM creates and runs your VM by creating a virtual interface identical to the host machine.
- VMs use your physical computer resources.
Related Terms
- Type 2 VMMs usually emulate VMs and underlying hardware and run on a host OS. Examples include Oracle VirtualBox and VM Ware Workstation.
- Type 1 VMM runs on hardware directly (on bare metal) without an underlying OS.
- An appliance is a VM setup, pre-configured and packaged in open virtualization format (.OVF) that can be imported or exported.
Why use a VM?
- To try out a new OS without installing it.
- To run more than one OS at the same time.
- To try a new application.
- To test various applications, drivers, etc. in a safe environment.
- To create clones of the guest OS.
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Description
Virtual Machines creates virtual environment. It houses different OSs, called guest OSs. Virtual Machine Manager creates and runs your VM by creating a virtual interface identical to the host machine. VMs use your physical computer resources.
