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1997 Course Communication Networks

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Total No. of Questions : 8] P1332 [Total No. of Pages : 2 [3664]-34 B.E. (E & TC) COMMUNICATION NETWORKS (404188) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any three questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. SECTION - I Q1) a) Explain FECN & BECN process in Frame Relay. [8] b) Explain ATM header in detail. What is B-ISDN? [8] Q2) a) What is 802.x bridge? What is encapsulation in layered communication? [8] b) What is difference between layer 2 and layer 3 switch? Also compare Hub Vs switch. [8] Q3) a) Explain character stuffing and bit stuffing in detail. [8] b) Explain ARQ techniques in detail? Explain the concept of window size . [8] Q4) a) Explain CSMA/CD technique in detail? Draw and explain the frame [9] format of IEEE 802.3. b) Draw and explain IEEE 802.5 frame format in detail. What is FDDI system? [9] SECTION - II Q5) a) Define Unicast, Broadcast and Multicast Network. Explain use of ARP & RARP in LAN communication. [8] b) What is MTU? Compare IPV4 Vs IPV6. [8] P.T.O.

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