O level south west regional mock gce 2022 computer science 2

O level south west regional mock gce 2022 computer science 2

O level south west regional mock gce 2022 computer science 2

2. a) A company has branches in several towns and needs to connect them for easy sharing of
i;
information and proper management. They may use either an intranet or an extranet.
i) State any three network devices that will be required for this connection.
ii) Briefly describe the role of each of the devices mentioned above.
iii) State, with a reason, the type of network you would advice the company to use. (2 marks)
iv) Briefly describe two other ways that the company will benefit from such connection.(2 marks)

5. a) All processing in a computer system takes place in the CPU, following a machine cycle.
List the main components of the CPU.
ii) Briefly describe the role of each of the components above.
iii) The CPU’s overall performance can be affected by many different factors of which the most
important are clock speed, cache size and the number of cores. Briefly explain how each of
the factor influences the performance of the CPU

Information Systems are widely used in various sectors of the society.
i) What is an information system?
ii) List six (6) components of a computerized information system
What do you understand by the term cloud computing’?