4 (a) Explain what is meant by an IT Code of Practice

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1.
(a) Explain what is meant by an IT Code of Practice. (3 marks)
(b) Responsibilities of the employees when using the company’s
hardware is one topic usually included in a Code of Practice.
Describe two other topics that should be included in a Code of
Practice.
(4 marks)
2.
A medical practice, in an area prone to flooding, has carried out a risk
analysis and is now preparing its disaster recovery plan. The main
elements of its ICT system are the patient records and prescription
systems, and the network used to access and maintain them.
(a) Explain what is meant by risk analysis. (3 marks)
(b) State two different potential threats to this ICT system, and
describe a counter-measure for each one. (6 marks)
(c) Name three criteria that the medical practice should consider when
preparing a suitable disaster recovery plan. (3 marks)
3.
Describe three ways in which a company can make use of computer
networked systems. (6 marks)
4.
The interface for a computer system to be used by the general public
has to be chosen carefully. An example of such a system is an
Automated Teller Machine (ATM) network.
(a) Name, and give a reason for, a suitable type of interface for an
ATM.
(2 marks)
(b) Describe two characteristics of this type of interface, which make it
suitable for an ATM. (4 marks)
(c) Describe two characteristics of the input and output devices that
form part of an ATM. (4 marks)
5
(a) Explain why entity-relationship diagrams are used when designing a
relational database (3 marks)
(b) Describe the process of normalisation. (4 marks)
(c) Explain, using an example, why normalisation is used when
designing a relational database. (4 marks)
6.
The term used to describe the arrangement of computers in a network
is topology.
Name two different Local Area Network (LAN) topologies, and draw a
diagram to illustrate each one. (4 marks)
7.
A company is having a sixteen-station Local Area Network (LAN)
installed.
(a) Describe what is meant by the term Local Area Network. (2 marks)
(b) Give two suitable topologies for the LAN and, for each one, draw
a labelled diagram to show its structure. (6 marks)
(c) State three items of hardware and/or software that could be needed
if the LAN is to be connected to the Internet. (3 marks)
7.
A common human/computer interface is a Graphical User Interface
(GUI).
State three features of a GUI and, for each one, describe how it
provides an effective method of communication between the user and
a computer system. (6 marks)
8.
(a) Most mobile phones make use of a menu driven interface.
Give two benefits of a menu driven interface for mobile phone users.
(2 marks)
(b) State two other types of user interface and give a suitable example
of use for each one.(4 marks)
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