Comp Network Dec 2002
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4.
568 B. E. (Computer Science Engg.) VIth Semester Examination, December-2002 .;
COMPUTER NETWORK Paper-CSE-312-C Time allowed: 3 hours
Maximum Marks: 100
Note: Attempt any five questions. 1. Explain TCP/IP reference model. 20
'2. (a)
Explain the reasons· for using layered protocol.
(b)
Differentiate between packet switching, CIrcuit swit.ching and message switching.
(c)
Discuss briefly different types of modems. 6+8+6
3.
Explain anyone error-correcting and anyone error-detecting code. 20
5.
1;>raw comparison of IEEE standard 802.3, 802.4 .
"
Differentiate between Virtual circuit and Datagran subnets. and 802.5.
5. (a) (b) 6.
20
Name two collision free protocols and explain them. Explain the Optimality Principle.
15+5
(a)
(b)
If a binary signal is sent to over a 3 KHz channel whose signal to noise ratio is 20 dB, what is the maximum achievable data rate. 15+5
568-400 P-2 (Q;-8)
P.T.O.
6.
:'';.' ..
8.
(a)
Geosynchron0us satellites
(b
Transmission impairments
)
Wireless transmission.
(c)
Why do we need Manchester and differential
(a)
Manchester encoding?
7,6,7
Show Manchester and differential Manchester encoding for bit stream 10000 10 1111. (b)
Why do we need repeaters?
(c)
List two advantages and two disadvantages ofhaving intemation~ standards for network protocols. 10,5,5
•
568-400 I
568 B. E. (Computer Science Engg.) VIth Semester Examination, December-2002 .;
COMPUTER NETWORK Paper-CSE-312-C Time allowed: 3 hours
Maximum Marks: 100
Note: Attempt any five questions. 1. Explain TCP/IP reference model. 20
'2. (a)
Explain the reasons· for using layered protocol.
(b)
Differentiate between packet switching, CIrcuit swit.ching and message switching.
(c)
Discuss briefly different types of modems. 6+8+6
3.
Explain anyone error-correcting and anyone error-detecting code. 20
5.
1;>raw comparison of IEEE standard 802.3, 802.4 .
"
Differentiate between Virtual circuit and Datagran subnets. and 802.5.
5. (a) (b) 6.
20
Name two collision free protocols and explain them. Explain the Optimality Principle.
15+5
(a)
(b)
If a binary signal is sent to over a 3 KHz channel whose signal to noise ratio is 20 dB, what is the maximum achievable data rate. 15+5
568-400 P-2 (Q;-8)
P.T.O.
6.
:'';.' ..
8.
(a)
Geosynchron0us satellites
(b
Transmission impairments
)
Wireless transmission.
(c)
Why do we need Manchester and differential
(a)
Manchester encoding?
7,6,7
Show Manchester and differential Manchester encoding for bit stream 10000 10 1111. (b)
Why do we need repeaters?
(c)
List two advantages and two disadvantages ofhaving intemation~ standards for network protocols. 10,5,5
•
568-400 I
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