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QUESTION 1
(a) Draw a use-case model for the above system. You must identify all possible actors and use-cases.
(b)
(c) Explain the difference between a structured methodology for developing software and the object-oriented approach. Use examples to illustrate your answer.
QUESTION 2
(a) Build a class model for the above system. You must identify all possible classes, their relationships, relationship multiplicities, two attributes and two methods for each class.
(b) Explain the difference between a link and an association. Use a simple example to illustrate your answer.
(c) Briefly explain the terms ‘cohesion' and ‘coupling'.
(d) What are the main factors which contribute to software complexity?
QUESTION 3
(a) Draw a Sequence Diagram for the process of assigning a driver to a particular bus going on a special route. Show clearly the objects involved and the flow of messages.
(b) What is a state diagram? Use an example from the case study to illustrate your answer.
What are gateways? Gateways give connectivity among two or more network segments. It is usually a computer that runs the gateway software and gives translation services. This t
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IEEE 802.4-Token bus Physical line or tree however logical ring. Stations know "left" as well as "right" stations. One token "passed" from station to station. Only station with
Explain Wiretapping?
The auxiliary port is used to link a modem to for dial backups.
Many instance of IGRP run on one physical router
i have been given a question:- any 50 numbers are given and to find out the 1)frequency of odd and even numbers 2)frequency of positive and negative numbers
Describe the following topics A . LAN B . MAN C . WAN D . ARPANET
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