BCA 404 :DATA COMMUNICATION AND NETWORKS MAY/JUNE 2010 QUESTION PAPER

                                 IV SEMESTER B.C.A. EXAMINATION MAY/JUNE  2010
                                                               Y2K7  SCHEME
                                                       COMPUTER SCIENCE
                          BCA 404  : DATA COMMUNICATION AND NETWORKS


Time : 3Hours                                                                            Max.Marsk: 80

Instruction : Answer all sections

SECTION-A

Answer any eight questions :   8 X 3 =24

1.List the advantages of tree topology.

2.Differentiate between circuit switching and Message switching.

3.List any 3ip address with an example.



4.Define the term.

a)Bandwidth.

b) Amplitude.

c)Bit rate.

5.compare Analog and  Digital transmission.

6.Name different framing methods.

7.What is open loop and closed loop control ?

8.What is piggy backing ?

9. LIst the features of CDMA .

10.Write a note on Bit stuffing.

SECTION - B

Answer any four questions       4 X 14 = 56

11.a)  What is Network topology ?

      b)Explain ring ,star and  mesh topologies ,Bring out their merits and demerits.       2 + 12

12.a)Explain the architecture of TELNET.
 
    b)With block diagram explain FTP model.     7+ 7

13.With neat diagram  explain the working of  OSI ISO model.

14.Explain

    a) Parity check method

     b) Hamming code method.     7 + 7

15.a) With a neat diagram explain token bucket algorithm

     b) Explain the structure of a packet switch.      7  + 7

16.a) With neat Diagram explain shortest path routing algorithm.

     b) State  the difference between diagram and virtual circuits.  7 + 7