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MS – 553

*MS553*

VI Sem. B.C.A. Degree Examination, May/June 2013 (Old Scheme) 6BCA-1 : COMPUTER NETWORK – II Time : 3 Hours

Max. Marks : 80

SECTION – A I. Answer any 8 questions.

(8×3=24)

1) Why bridges are required in LAN ? 2) State the difference b/w OSI and TCP/IP model. 3) Differentiate b/w Virtual Circuit and Datagram. 4) Explain port numbers. 5) Explain Icmp packet format. 6) What is post office protocol ? 7) What are remote procedure calls ? 8) Explain subnetting. 9) When is BOOTP used ? 10) Why should ARP Cache be maintained ?

P.T.O.

*MS553*

MS – 553 SECTION – B II. Answer any 4 full questions.

(4×14=56)

11) a) With a neat diagram explain TCP/TP model.

10

b) Explain : i) ping

ii) IP Config.

12) a) Discuss about IGMP in detail. b) What is DNS ? Explain its message format.

4 8 6

13) a) Explain SMTP in detail.

8

b) Explain IP Routing.

6

14) a) What is RARP ? Explain in detail its functioning and its header format. b) Explain Telnet.

8 6

15) a) Explain TCP timeout and retransmission process. b) Explain MTU.

7 7

16) Write a short notes on : a) FTP.

5

b) TRACE ROUTE.

5

c) Dynamic Routing.

4 ______________