3.2 Virtualisation

Question 1

Virtualisation

Answer 1

It describes the creation of a virtual version of a device, software or server

Question 2

Server

Answer 2

Allows one physical server to host multiple virtual machines each running separately

Question 3

Server strengths

Answer 3

Cost reduction
Backup and recovery is reliable and efficient

Question 4

Server Weaknesses

Answer 4

Security risks
Some applications cant be virtualised

Question 5

Client

Answer 5

A virtual machine environment in the users machine

Question 6

Client Strengths

Answer 6

Increased security and functionality

Question 7

Client Weaknesses

Answer 7

Not always practical or cost effective

Question 8

Storage

Answer 8

Combines multiple storage devices so that they appear to be one device

Question 9

Storage Strength

Answer 9

Cost and time saving

Question 10

Storage weaknesses

Answer 10

Lacks scalability and fast access ability

Question 11

Cloud

Answer 11

Hardware virtualisation that creates virtual machines in the operating system

Question 12

Cloud strengths

Answer 12

Uses hardware efficiently and recovery is easy

Question 13

Cloud weaknesses

Answer 13

High initial investment and data is at risk

Question 14

Hybrid

Answer 14

A model of client computing where virtualised applications and desktops are deployed using a combination of cloud based and on site infrastructure.

Question 15

Hybrid strengths

Answer 15

Minimises cost changes for organisations and eliminates many capital expenses

Question 16

Hybrid weaknesses

Answer 16

It creates limitations and still has a capital cost

Question 17

How are virtual computers used in business

Answer 17

They can use storage virtualisation to organise data or plan for a disaster recovery because it allows for easy duplication and transfer to any location. A cloud drive is an example of storage virtualisation.