Friday, July 10, 2015

Mahatma Gandhi University B.Sc Computer Science Computer network 2014 Question paper

University: Mahathma University
Course: B.sc
Subject : Computer network
Year of Question Paper : 2014

C.B.C.S.S B.Sc Degree Examination, April 2014
Fourth Semester
Computer Science
Core Course – Computer Networks
Time : Three Hours Total Weight : 25
Part A
Answer all questions
Each bunch of four questions carries a weight of one
Fill in the Blanks:
I)
1. The data transfer in which the data associated with the application flows in one direction is called ….......... method.
2. PSTN stands for ………………….
3. The application protocol that is used to control the transfer of messages between two MTAs over the Internet is called…………………
4. A collection of interconnected networks is called a ……………
II)
5. ……………… consists of hardware controlled by associated software, that performs the related network interface functions
6. The unit that performs the modulation and demodulation function is called ……..
7. CATV stands for ……………….
8. ………….. are privately owned networks within a single building or campus upto a few kilometers in size.
III) 9. In which transmission type, message is independently for transmission purposes?
(a) synchronous (b) asynchronous (c) symmetric (d) asymmetric
10. Protocols used to transfer files across Internet
a) SNMP b) SMTP c) HTTP d) FTP
11. DHCP stands for ……………….
a) Dynamic host configuration protocol b) Digital host configuration protocol
c) Dynamic hypertext configuration protocol d) Digital hypertext configuration protocol
12. The Bluetooth standard is an open standard published by an industry based association called……………..
a) Bluetooth Special Interest Group b) Bluetooth System Interest Group
c) Bluetooth Special Isolated Group d Bluetooth System Isolated Group

IV
13. Client port numbers are usually called ………………….
(a) ephemeral ports (b) usb ports (c) scsi (d) agp
14. The ………………. Flag in TCP indicates the number of bytes in the data field that follow the current sequence number
(a) SEQ (b) INTR (c)SIGN (d) URG
15. In Bluetooth technology, ………… link is intended for speech/ audio applications.
a) ACL b) SCO c) QBE d) UDP
16. At regular intervals, each router broadcast a ………….. message, containing the router's identity.
a.) physical state b.) session state c.) link state d) application state
Part B
Answer five questions out of eight
Each bunch of four questions carries a weight of one
17. What is ADSL?
18. Define DNS
19. Compare twisted pair and coaxial cable
20. Describe WLANS
21. What is meant by URL?
22. Define computer network
23. What is meant by routing metric?
24. State the difference between circuit switching and packet switching.
Part C
Answer four questions out of six
Each bunch of four questions carries a weight of two
25. Explain OSI reference model
26. Explain ISDN
27. What are the features of IPv6?
28. Describe Flooding.
29. Explain silly window syndrome.
30. Write notes on Fiber optics?

Part D
Answer two questions out of three
Each bunch of four questions carries a weight of four
31. Describe the uses of computer networks.
32. Explain the operations of TCP protocol.
33. Explain WWW. .

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