Virtualisation

Question 1

Server

Answer 1

A server is a computer or computer program which manages access to a centralised resource or service in a network

Question 2

Benefits of a server

Answer 2

• A server improved collaboration

* A server adds reliability

Question 3

Drawbacks of a server

Answer 3

• Purchasing the network cabling and file servers can be expensive
• Managing à large network is complicated , requires training and a network manager

Question 4

Storage virtualisation

Answer 4

The pooling of physical storage from multiple network storage devices into a single storage device that is managed from a central console

Commonly used in storage area networks

Question 5

Benefits of storage virtualisation

Answer 5

• Allows you to more easily manage heterogenous storage environments
• The overall system may have a slightly higher latency
• Allows you to migrate data between drives more easily

Question 6

Drawbacks of storage virtualisation

Answer 6

• High costs of implementation
• It creates a security risk
• Creates an availability issue

Question 7

Cloud computing/storage

Answer 7

Cloud storage is a cloud computing model in which data is stored in remote servers accessed from the internet or the “cloud”

Question 8

Benefits of cloud computing/storage

Answer 8

• Usability - allows users to drag and drop files between the cloud storage
• Accessibility - Stored files can be accessed from anywhere via internet connection

Question 9

Drawbacks of cloud computing/storage

Answer 9

• Accessibility- If you do not have an internet connection then you will not be able to access your files

Question 10

Hybrid servers

Answer 10

A hybrid hosting service of hybrid server is a type of internet hosting which is a combination of a physically-hosted server with virtualisation technology

Examples: Databases, file storage, commerce applications

Question 11

Benefits of hybrid servers

Answer 11

• Cost saving
• Improved security
• Enhanced organisational agility
• Greater Accessibility

Question 12

Drawbacks of hybrid servers

Answer 12

• It takes tools and skills to operate a hybrid virtualisation
• The cost of starting and building the hybrid is very high
• Compatibility - Many public servers don’t support hybrid
• The security for one part of the hybrid is under attack

Question 13

Desktop virtualisation

Answer 13

Desktop virtualisation can be used in conjunction with application virtualisation to provide a comprehensive environment management system.

Question 14

Hypervisor

Answer 14

A computer software, firmware or hardware that creates a runs virtual machines