Online Systems

Question 1

SaaS

Answer 1

Software as a Service

Question 2

IaaS

Answer 2

Infrastructure as a Service

Question 3

PaaS

Answer 3

Platform as a Service

Question 4

Personal uses of cloud storage

Answer 4

Saving of files, sharing with others, files can be accessed anywhere

Question 5

Providers of cloud storage

Answer 5

Google Drive, Dropbox, Onedrive

Question 6

Data center

Answer 6

Large warehouses that store large numbers of servers

Question 7

IoT

Answer 7

Internet of Things - everyday things have an embedded internet connection

Question 8

Cloud computing

Answer 8

Software, Platforms, Infrastructure as a service

Question 9

What is SaaS?

Answer 9

Traditionally purchased and installed, usually paid on monthly/yearly subscription (e.g. Office 365)

Question 10

What is IaaS?

Answer 10

A company rents a server for online storage, network services etc. The company will choose what to install on it

Question 11

What is PaaS?

Answer 11

Extends the functionality of IaaS

Question 12

Impact on organisations

Answer 12

+ Cloud storage costs less
+ Data backed up frequently
+ Easy to scale up/down

• Company not in control of it’s data
• Fast internet connection required
• Failure of internet could result in data loss