Osmania University (OU) 2007 M.C.A Computer Aplications Network Programming - Question Paper

NETWORK PROGRAMMING

UNIT -1
1. a) Compare TCP/IP and OSI Model..
b) elaborate choke packets ? How is congestion controlled with them ?
Is it open loop or closed loop solution ?
2. a) By meas of a sample subnet graph, discuss the Reverse Path
Forwarding algorithm used for Broadcasting.
b) explain the general principles of congestion control.
UNIT - II
3. a) What is fragmentation problem? How many kinds of fragmentation
exists ?
8
b) explain the design problems of network layer in ATM networks.
4. a) discuss the objectives and functioning of ARP and RARP.
b) elaborate Gateway Routing Protocols ? discuss.
UNIT-III
5.a) elaborate quality of service primitives ? In, n network thnt'hns n maximum TPDU size of 128 bytes, n maximum. TPDU lifetime of 30 seconds and an 8-bit sequence number, what is the maximum data rate per connection ?
b) Why does the maximum packet lifetime have to large enough to ensure that not only the packet but also its acknowledgements have vanished ?




6. a) Draw and discuss the different fields of TCP segment header.
b) What is upward and downward multiplexing ? Which is applicable
to TCP if any ?
UNIT - IV
7. a) describe : socket, connection, reserved posts, multihomed machine.
b) discuss the different socket related system calls used in
connection-oriented and connectionless client and server processes
implementation.
8. a) discuss the role and importance of out-off-hand data in network
communication.
b) Write a sample program to demonstrate getting and setting the
socket choices via socket related system calls.
UNIT - V
9. a) What is D.N.S ? Why is it needed ? discuss its working in detail.
10. 10 b) Differentiate ranging from public key and private key encryption.
11. a) discuss the need of Network Management. How far SNMP is
justifiable for network management ?
b) elaborate Traps in the content of SNMP ? List out the different
messages used by SNMP.

Earning:   Approval pending.