Cochin University of Science and Techology (CUST) 2007 B.Tech Electronics and Communications Engineering computer networks (e ) - Question Paper

computer networks (June 2007)

1a. write short note on wireless network
b. what is a datagram? discuss
c. provide the features of ARPANET network
2a. what is TCP/IP reference model? explai about functions of every layer
b. provide the frame relay user network interface protocol architecture and explain briefly
3a. how the framing function is performed in data link layer? briefly explain about any 2 kinds of framing protocols
b. discuss the functions of ARP and RARP protocols
4a. what is random access protocols? briefly explain about any 2 kinds of random access protocol
b. how the switches and bridges are differentiated?
5a. briefly define about any 2 kinds of routing algorithms
b. provide short note on:
i) mobile IP ii) border gateway protocol
6a. how the IP addresses has been classified? discuss
b. how the fragmentation can be achieved in IP packets? discuss
c. define the features of IPV6
7a. provide ATM AAL protocol stack and define the functions of every layer
b. compare and contrast connection less and connection oriented data transport
8a. what is a TCP connection? briefly explain the TCP connection management
b. how the TCP is controlling the congestion? discuss
9a. differentiate persistent and non persistent connection for HTTP protocol
b. write short notes on firewalls
10a.how does a simple mail transfer protocol (SMTP) functions? discuss with 1 example
b. what is digital signature? how it has been implemented?

Earning:   Approval pending.