Flashcards
Virtual Machines
Cards in this deck (8)
- 1What is a virtual machine?A virtual machine is a piece of software that emulates a separate computer system
- 2Why are virtual machines used?Virtual machines can perform risky tasks that are dangerous to do in a host environment
- 3What is the 'host'?The host is the domain/computer that a virtual machine runs on
- 4Name some advantages and disadvantages of virtual machinesAdvantages:
- Reduces risk of virus infection
- Simple to manage and widely provided
- Multiple OSs on one computer
Disadvantages:
- Multiple OSs can affect performance
- Virtual machines are slower - 5What are the two types of virtual machine?1. Process Virtual Machine
2. System Virtual Machine - 6What does a process virtual machine do?Executes programs in a platform independent environment
- 7What does a system virtual machine do?Supports the sharing of a host's physical resources between multiple virtual machines
- 8What does platform independent mean?If a program is platform independent, it can be executed on any platform with minimal to no changes to its code
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- Flashcards on Virtual Machines, created by Nathan Glover on 13/01/2020.
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- Nathan Glover
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