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Computer Communication And Telecom Networks Question Paper - Dec 18 - Electronics And Telecomm (Semester 6) - Mumbai University (MU)
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Computer Communication And Telecom Networks - Dec 18
Electronics And Telecomm (Semester 6)
Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.
Q1 Attempt any four out of five:
a)
What is framming? How frames can be classified?
(5 marks)
00
b)
A pure ALOHA network transmits 200 bits frames on a shared channel of 200 kbps. What is the throughout if the system(All stations together) produces:
(5 marks)
00
i) 1000 frames per second
ii) 500 frames per second
iii) 250 frames per second
c)
Explain Three-Way Handshaking for connection establishment in TCP
(5 marks)
00
d)
What is the subnetwork address if the destination address is 200.45.34.56 and the subnet mask is 255.255.240.0?
(5 marks)
00
e)
Differentiate between Bus Topolohy and Ring Topology.
(5 marks)
00
Q2
a)
Explain OSI model. Consider a source, destination machine and some intermediate nodes for the discussion.
(10 marks)
00
b)
i) Differentiate between TDM and FDM.
(10 marks)
00
ii) Explain various addresses used in TCP/IP Layered Architecture.
Q3
a)
What is DSL Technology? List different DSLs available. Discuss salient featres of ADSL.
(10 marks)
00
b)
Explain CSMA/CD in detail and also mention in use.
(10 marks)
00
Q4
a)
Draw and explain TCP Header format.
(10 marks)
00
b)
What is sliding window protocol? Explain Stop and wait ARQ in detail.
(10 marks)
00
Q5
a)
Using the below figure, apply the Bellman-Ford algorithm to find both the minimum cost from each mode to the destination node (assume node F) and the next node along the shortest path. Also draw the tree diagram.
(10 marks)
00
b)
Define Clasful adderessing scheme used in IPv. What is a mask and range of addresses used for 10 each class?
(10 marks)
00
Q6 Write a short notes on (any two):
a)
HFC
(10 marks)
00
b)
ATM
(10 marks)
00
c)
DNS
(10 marks)
00
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