Computer networks – Questions and Answers

Subject Title: ICT Revision Kit
TOPIC: Computer networks

QUESTION 1
April 2022 Question Four B
Explain four reasons why an organisation may prefer to install a peer to peer networking model. (8 marks)

QUESTION 2
April 2022 Question Five A
(a) (i) Explain the term “smart home” as used in the world of technology. (1 mark)
(ii) Describe the importance of the “Internet of Things” in the smart home. (4 marks)

QUESTION 3
April 2022 Question Seven A
The Internet of Things (loT) has grown very rapidly and emerged to be a large part of how human beings live, communicate and conduct business. While web-enabled devices are turning our global rights into a great switched-on operating area, the implementation of IoT has several challenges.

Discuss four security challenges that accompany IoT. (8 marks)

QUESTION 4
December 2021 Question Seven C
Explain three types of applications of Internet of Things (IoT) in the government sector.
(6 marks)

QUESTION 5
November 2019 Question Three A and B
Discuss three factors that need to be considered when selecting a network topology.
Mega Company Ltd. has setup a voicemail service to support clients country-wide.

Required:
(i) Identify three ways in which the company would benefit from such a service.
(ii) Highlight three disadvantages of such a service to the customers.

QUESTION 6
November 2019 Question Six A and D
Suggest four benefits that might accrue to an organisation as a result of adopting cloud computing.
Examine three ways through which intranets could add business value to an organisation.

QUESTION 7
May 2019 Question Six A (i)
In the context of computing, differentiate the following terms:
“Internet of everything” and “internet of things”.

QUESTION 8
November 2018 Question Three A and E
Name the following network topologies:

Security in cloud computing is a major concern.

Required:
Analyse four attributes to be considered before deploying a particular resource to the cloud.

QUESTION 9
November 2018 Question Six C
Distinguish between the following terms as used in data transmission:
(i) “Simplex” and “full duplex”.
(ii) “Synchronous” and “asynchronous”.

QUESTION 10
November 2018 Question Seven B and C
Distinguish between “Wi-Fi” and “Wimax” technology as used in communications.
Explain three roles of Transmission Control Protocol/Internet Protocol (TCP/IP) in computer networks.

QUESTION 11
May 2018 Question Two A (i)
Differentiate between the following terminologies as used in management information systems:
Green computing” and “cloud computing

QUESTION 12
May 2018 Question Three A
Using examples, analyse three benefits of telecommunication networks in business

QUESTION 13
May 2018 Question Four C
Ufanisi Ltd. is a newly established organisation: The company is planning to network all the computers and has sought advice from the IT Consultant. The Consultant has • advised Ufanisi Ltd. to set up a peer-to-peer network and later on convert to client-server network.

Required:
Justify the advice given by the IT Consultant.

QUESTION 14
May 2018 Question Seven A and B
Distinguish between “a multiplexer” and “a front-end processor”.
Analyse four major characteristics of a local area network.

QUESTION 15
May 2017 Question One A
Describe the following concepts as used in information systems:
(i) Software-as-a-service (SAGS).
(ii) Open source software (OSS).
(iii) Total cost of ownership (TCO).

QUESTION 16
May 2017 Question Five A
The ability to exchange data and communicate efficiently is the main purpose of computer networking. However, we have to consider beyond these points to evaluate the feasibility of networking.

Required:
Analyse three advantages and three disadvantages of computer networking.

QUESTION 17
May 2017 Question Six C
Distinguish between “transmission control protocol” and “internet protocol” as used in data communication networks.

QUESTION 18
November 2016 Question Two B (i)
Distinguish between the following terms as used in management information systems:
“Internet of Things (IoT)” and “Internet of Everything (loE)”.

QUESTION 19
November 2016 Question Two C
The management of Kwachu Ltd. intends to acquire equipment for a local area network.
Required:
i. Suggest four types of equipment that the company might acquire for a local area network.
ii. Analyse six reasons why the management might be compelled to use direct procurement method to acquire the local area network equipment.

QUESTION 20
November 2016 Question Six A and B
Highlight four functions of a network operating system.
Suggest three benefits of using voice over internet protocol (VOIP).

QUESTION 21
November 2016 Question Seven A
Highlight four risks associated with cloud computing.

QUESTION 22
May 2016 Question Four A (ii) and B (i)
(a) (ii) In a computer network, noise in signal is the random disturbance or fluctuation in
analogue or digital signals.
Explain four classifications of noise.

(b) (i) Demonstrate the key difference between “backward error correction” and “forward error correction” as used in computer networks.

QUESTION 23
November 2015 Question One B
Describe five components of data communication.
Highlight four factors which affect the performance of a computer network

QUESTION 24
November 2015 Question Three B
Evaluate six advantages and three disadvantages of a distributed computer system.

QUESTION 25
November 2015 Question Seven B
Examine five types of data processing applications in the context of cloud computing.

QUESTION 26
Pilot paper 2015 Question Three A
Highlight five business opportunities that can be harnessed using cloud computing by an organisation.

QUESTION 27
Pilot paper 2015 Question Four C
Examine two vulnerabilities which an organisation may be exposed to after commissioning a computer network with an Internet connection.

QUESTION 28
Pilot paper 2015 Question Seven B, C and D (ii)
(b) Outline four common uses of an extranet in an organisation.
(c) Mobile computing devices are increasingly being used in businesses today because of their convenient portability.
Required:
State four ways of minimising theft of mobile computing devices when using them outdoor.

(d)
(ii) Outline three ways in which ‘internet of things’ is benefiting small and medium sized businesses