University of Rajasthan 2011 B.C.A Computer Application Bechelor of s part-ii of - Question Paper

22. The loopback address is used to send a packet from the ----- to---------.
(a) Host; all other host
(b) Router; all other host
(c) Host; a specific host
(d) Host;itself

23. FTP is a protocol of---------layer of TCP/IP protocol suit.
(a) Application layer
(b) Transport layer
(c) Network layer
(d) Physical and data link layer

24. The------ layer modifications bits into electromagnet signals.
(a) Physical
(b) Data link
(c) Network
(d) Transport

25. Switches work at --------layer.
(a) Application
(b) Data link
(c) Physical
(d) Network

26. Frame relay operates in the :
(a) Physical layer
(b) data link
(c) Physical and data link layer
(d) None of the above

27. PPP is a---------- layer protocol.
(a) Physical
(b) data link
(c) Physical and data link
(d) 7

28. The -------is an IGMP message.
(a) Query message
(b) membership report
(c) Leave report
(d) All of the above

29. ---------- is the most widely used local area network protocol :
(a) Token ring
(b) Token bus
(c) Ethernet
(d) None of the above

30. 10 base two is notation of -------- network
(a) Star topology
(b) Token ring
(c) Bus using thick cable
(d) bus using thin coxial cable

31. In cyclic redudancy checking,what is CRC ?
(a) Dividend
(b) Divisor
(c) Quotient
(d) Remainder

32. The OSi model sonsists of ----layers.
(a) 3
(b) 7
(c) 5
(d) eight

33. Bandwidth is measured in-----------.
(a) Kilobytes per second
(b) Megabytes per second
(c) Hertz
(d) Bytes per 2nd

34. TCP uses----flow control mechanism
(a) Stop and go
(b) Sliding window
(c) Wait for ack
(d) Dynamic

35. Which of the subsequent is an alication layer service ?
(a) Mail services
(b) Remote log-in
(c) FTAM
(d) All of the above

36. The data unit in the transport layer of TCP/IP suit is called :
(a) Datagram
(b) Segment
(c) Message
(d) frame

37. FDDI is an acronym of :
(a) Fast data delivery interface
(b) Fiber distributed data interface
(c) Fiber distributed digital interface
(d) Fast distributed data interface

38. ------------ does support fragmentation at routers:
(a) IPOv4
(b) IPv6
(c) Both (a) and (b)
(d) IPng

39. ARQ stands for :
(a) Automatic repeat request
(b) Automatic retransmission request
(c) Automatic repeat quantization
(d) Acknowledge repeat request

40. Satellite to ground communication takes place through :
(a) Medium wave
(b) Short wave
(c) Microwave
(d) Optical signals
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PART-II DESCRIPTIVE
Maximum marks :30
Attempt any 4 descriptive kind of ques. out of six. All ques. carry 7.5 marks every


1. What do you mean by network architecture ? discuss varoys Topologies.

2. What do you mean by OSI model ? define its different layers in details.

3.
(a) Differentiate ranging from Physical and Internet address.
(b) discuss TCP and UDP.

4. What is an inter-network ? Name various internet-
working devices.How do routers choose the pathway for any transmission ?


5. Differentiate ranging from Token Ring and FDDI protocol. Which is better for
LAN needing data transmission at high speed ? Why ?

6. Write notes on the subsequent :
(i) TCP and UDp
(ii) ALOHA and CSMA/CD
(iii) LLC and MAC
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BY:
Rakesh kumar saini

Earning:   Approval pending.