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Computer Networking Question Paper

Computer Networking

Course:Bachelor Of Science In Information Technology

Institution: Masinde Muliro University Of Science And Technology question papers

Exam Year:2011

EXAMINATION FOR THE BACHELOR OF SCIENCE DEGREE IN INFORMATION
TECHNOLOGY
COMPUTER NETWORKING
DATE: MARCH 2011 TIME: 1 ½ HOURS
INSTRUCTIONS: Answer any THREE questions
QUESTION ONE
a) Define the term network as used in IT [2 Marks]
b) Using a diagram show how at least four components are interconnected to make a wireless
network. Explain the function of each component. [12 Marks]
c) Name any two wireless media and give one strength and one limitation of each [6 Marks]
QUESTION TWO
In networks media links are shared among the network devices staring at the LAN level and even in
large network configurations. With regard to this;
a) Explain the difference between multiplexing and data access methods [4 Marks]
b) Briefly describe FDM multiplexing method [5 Marks]
c) Briefly explain the operation of CSMA/CD MAC method [7 Marks]
d) Give two advantages of token passing and two of demand priority data access methods
used in some LANs [4 Marks]
QUESTION THREE
a) Define the terms protocol, network model layer and [4 Marks]
Compare and contrast the layers of the OSI model and the TCP/IP stack [16 Marks]
QUESTION FOUR
a) State the purpose of internetworking devices [2 Marks]
b) Briefly describe the operation of the hub, repeater and bridge. In each case show the layer level
(OSI) at which the device operates [9 Marks]
c) Differentiate between circuit switching and packet switching [4 Marks]
d) Address resolution [5 Marks]
QUESTION FIVE
a) Define environmental, procedural and logical security threats. [3 Marks]
b) Name three logical threats and three ways of preventing these [6 Marks]
c) Define the term IP address [1 Mark]
d) For the following two addresses, show the class, network address, node address and network mask
(i) 122.125.020.014
(ii) 193.060.128.223 [8 Marks]
e) “The final IPv4 addresses were allocated in early February 2011”. Explain the meaning of this statement. [2 Marks]

Computer Networking Question Paper

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