3.2 Virtualisation

Question 1

what is virtualisation

Answer 1

presenting something to the user that is different to the physical reality

Question 2

storage virtualisation

Answer 2

used for data storage management
- reduces amount of physical storage required
- difficult to solve when something goes wrong

Question 3

cloud virtualisation

Answer 3

delivery of shared computing resources, software data as an on demand service through the internet
- quick setup
- security risks, bandwidth issues

Question 4

server virtualisation

Answer 4

partitioning of physical servers into multiple virtual serves each running its own OS and application
- minimise downtime
- extra hardware and training expenses

Question 5

client virtualisation

Answer 5

operating system managed centrally on a server and executed locally on a client device
- reliable, minimal maintenance
- depend on network connection

Question 6

hybrid virtualisation

Answer 6

combination of paravirtualisation and hardware assisted virtualisation
- improves performance
- costly, training requires