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0 1 0 0
0 1 1 1
1 0 0 0
1 0 1 0
1 1 0 1
1 1 1 1

d)Obtain a simplified form for a Boolean expression :-
F(u,v,w,x) = ∑(0,1,3,5,7,9,10,11,12,13,14,15) [2]
e) Draw the circuit diagram for F = AB’C + C’E using universal gates only. [1]

Q.7 a) What is LAN and WAN ? [1]
b) State two reasons for which you may like to have a network of computers instead of of having
stand alone computers. [1]
c) When a person does a crime using computer , then the person can be tracked through
(i) IP address
(ii) MAC address
(iii) Residence Address [1]
d) Which out of the following does not come under Cyber Crime ?
(i) Stealing a mouse from someone’s computer .
(ii) Operating someone’s Internet banking account , without his permission or knowledge.
(iii) Entering in someone’s remotely and copying data , without seeking his permission . [1]

e) East and West Public Ltd. Has decided to network all its offices spread in five buildings of C.P
(Shown below) :-

Building Building
2 [45] 3 [110]

‘ B
Building uilding

1 [40] 1 [40]

Building Building
5 [70] 4 [60]

The distances between buildings are given below :-
Between 1 & 2 20 Mts
Between 3 & 5 70 Mts
Between 2 & 3 50 Mts
Between 1 & 5 65 Mts
Between 3 & 4 120 Mts
Between 2 & 5 50 Mts
Between 4 & 5 30 Mts

(i) Suggest cable layout(s) for connecting the buildings.
(ii) Suggest the most suitable building to install the server of this organization with a suitable

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