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Bit 212: Network Design And Administration Question Paper

Bit 212: Network Design And Administration

Course:Bachelor Of Information Technology

Institution: South Eastern Kenya University question papers

Exam Year:2013

SOUTH EASTERN KENYA UNIVERSITY

UNIVERSITY EXAMINATIONS 2012/2013

SECOND YEAR SECOND SEMESTER EXAMINATION FOR THE DEGREE INFORMATION TECHNOLOGY

BIT 212: Network Design and Administration
Date: 05/06/2013 Time: 2 Hours

Instruction(s): Attempt question one and two in section A and any other three questions in section B

Section A (31 Marks) – Compulsory
Question One
a) Explain the following terminologies as used in networking:
(i) Standards;
(ii) Protocol;
(iii) VoIP;
(iv) WAP. (4marks)
b) Explain Domain Name Service (DNS) as used in networking. (2marks)
c) Outline four main duties of a network administrator. (4marks)
d) Explain the significant of the ping command in networking. (2marks)
e) Explain the difference between the following pair of terms:
i. IPv4 and public IPv6;
ii. WI-FI and WIMAX. (4marks)

Question Two
a) Explain the following networking concepts:
(i) DHCP;
(ii) FTP. (2marks)
b) With aid of diagrams explain the difference between client/servers and peer-to-peer network. (3marks)
c) Assume you are troubleshooting a LAN network within a University; enumerate the steps recommended for effective network troubleshooting. (3marks)
d) Enumerate six ethical behaviours that are expected of a network administrator. (3marks)
e) Distinguish between the following terms as used in networking environment:
(i) 10Base T and 100BaseT;
(ii) Local Host and Remote Host. (4 marks)

SECTION B: ATTEMPT ANY THREE QUESTIONS (39 Marks)
Question Three
a) Explain the significance of bandwidth in network administartion. (1mark)
b) Explain three meta principles of systems administration. (6marks)
c) Explain the following features considered when selecting Network Operating System:
(i) performance;
(ii) management and monitoring tools;
(iii) security;
(iv) scalability;
(v) robustness or fault tolerance. (6marks)

Question Four
a) State the difference between OSI and ISO. (2marks)
b) Explain two advantages of Linux as a desktop Operating System. (2marks)
c) The figure below shows LAN connectors. Identify them. (2marks)

d) Explain three functions performed by networking software. (3marks)
e) Many different industries use standards to ensure that products, processes, and services suit their purpose. Explain two advantages and two disadvantages of standards to such industries. (4marks)

Question Five
a) Fred wants to buy a router for use within SEKU. Outline two factors he needs to consider when selecting a router for setting up internet connectivity. (2marks)
b) Changing network infrastructure involves deploying new network segments or reconfiguring hardware or network services in some way. Discuss three reasons why established networks may require change. (3marks)
c) Networks today are the major backbone on which most organizations run. It is thus imperative for each organization that is running networks to ensure on the security of their networks. Security becomes a great challenge especially when we consider that the organizations network often connects to other external networks. Describe four threats or attacks that networks are constantly faced with, recommending solutions.
(8 marks)
Question Six
Consider that you have been hired as a network designer and administrator at SEKU and you have just realized that their networking services are wanting especially within Research and Office Block. Your first task is to judiciously carry out the objectives and goals needs analysis in order to restructure and improve services.
(i) Explain three factors affecting the choice of topology you can use. (3marks)
(ii) The IEEE standards restrict the maximum length of the coaxial cable to 500m for 10 BASE5. Explain the reasons. (2marks)
(iii) Explain the difference between 802.11a and 802.11g as wireless network standards from IEEE. (2marks)
(iv) Describe three network design recommendations. (3marks)
(v) Explain the need for wireless technology as an alternative to copper cable.
(3marks)
Question seven
a) Discuss four driving forces behind network management. (4marks)
b) Explain the activities involved in network management. (5 marks)
c) Using the diagram below, explain how a request is sent over the Internet using a communications channel. (4marks)

Bit 212: Network Design And Administration Question Paper

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