Kannur University 2009-2nd Sem B.Tech Vester Engineering (New Scheme) , EC 2K 704 : COMPUTER COMMUNICATION AND NETWORKING - Question Paper

Time: three Hours Max. Marks: 100


ans all questions.



PART- A



1. a) discuss the charecterstics of communication networks. [Marks 5]

b) When are the services given by the transport layer to the network ? [Marks 5]

c) Defferentiate ranging from circuit switching and packet switching. [Marks 5]

d) Briefly discuss static and dynamic alternate routing. [Marks 5]

e) What is the Markov chain ? discuss discrete time markov chain. [Marks 5]

f) define poisson pocess briefly. [Marks 5]

g) discuss the important features of ATM. [Marks 5]

h) With the necessary diagram, discuss ATM headers. [Marks 5]


PART- B


2. a) i) discuss the various methods used for fault detection and fault correction. [Marks 7]


ii) discuss A) CBR B) VBR [Marks 8]



OR

b) i) With neat diagram, explai data link layer of OSI reference model. [Marks 7]


ii) With necessary diagram, discuss MAC layer of IEEE 802.5(Token Ring )standard.[Marks 8]



3. a) i) discuss TCP congestion control with example. [Marks 8]


ii) explain the important points of window adjustment in TCP. [Marks 7]


OR


b) i) discuss various kinds of IP addressing schemes. [Marks 8]


ii) With neat diagram,explain IPV4. [Marks 7]



4. a) i) explain the queuing models for datagram networks. [Marks 7]


ii) State and prove Little's theorem. [Marks 8]


OR


b) discuss M/M/I queuing system. Derive an expression for M/M/I queuing system. [Marks 15]



5. a) i) discuss virtual channel identifier with a diagram. [Marks 8]


ii) discuss briefly a leaky bucket control strategy of ATM. [Marks 7]

OR


b) With neat diagram, discuss ATM adaptation layer. Also discuss its kinds. [Marks 15]

Earning:   Approval pending.