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1997 Course Communication Networks

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Total No. of Questions : 8] P1573 [Total No. of Pages : 2 [3764]-1033 B.E. (E & TC) COMMUNICATION NETWORKS (404188) (1997 Course) Time : 3 Hours] [Max. Marks :100 Instructions to the candidates : 1) Answer any 3 questions from Section I and 3 questions from Section II. 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) Compare SMDS and X.25 technology. [8] Explain ATM header in detail. What is B-ISDN? [8] Draw & explain HDLC & PPP frame format in detail. [8] b) What is 802.x Vs 802.y Bridge? [4] c) Compare repeater Vs layer-2 Switch. [4] b) Q2) a) Q3) a) Draw & explain IEEE-802.3 frame format. Also explain significance of PAD field. [8] b) Explain any one framing technique used at LLC layer. [4] c) Explain IEEE-802.6-DQDB technique in brief. [4] Q4) Write a short note on any three: a) 802.3 Vs. 802.5 technique. b) LEO Vs MEO Vs GEO. c) Ad-Hoc Wireless networks. d) [18] FDDI backbone. P.T.O.

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