Pune University BE IT Adavnced Computer Networks Question Papers

B.E. (Information Technology) ADVANCED COMPUTER NETWORKS

(2008 Pattern) (Elective – III) (Sem. – II)

Time :3 Hours]                                                                                              [Max. Marks :100

Instructions to the candidates:-

1)          Answers to the two sections should be written in separate books.

2)          Neat diagrams must be drawn wherever necessary.

3)          Pigures to the right indicate full marks.

4)          Your answers will be valued as a whole.

5)          Use of logarithmic tables slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed.

6)          Assume suitable data, if necessary.

SECTION – I

QIA a) Explain in detail how today’s network evolved from telephone network. [8]

b)        What are the network elements?                                                                      [4]

c)        Draw a neat diagram of network architecture.                                               [4]

OR

Q2) a) Explain four principles of communication network.                                           [8]

b) How packets are transported in datagram and virtual circuit network. [8]

Q3) a) Describe different types of delays in ATM networks.                                      [10]

b)        Explain addressing scheme in ATM networks.                                             [4]

c)        Explain wave-division multiplexers system in brief.                                   [4]

OR

Q4) a) Explain in short basic architecture of wireless networks.                                  [4]

b)        Draw a neat diagram of ATM header. Explain the structure of header. [6]

c)        Explain in detail ATM Adaptation layer.                                                        [8]

 

Q5)

a)

How control decisions are taken in circuit switched, datagram, and virtual

   

circuit network.

[8]

 

b)

Explain Markov chain model for circuit-switched network.

[8]

   

OR

 

Q6)

a)

What are the parameters specified in the Quality of Service? Explain in

   

detail.

[8]

 

b)

How dynamic routing optimization is carried out with different

   

algorithms?

[8]

   

SECTION – II

 

Q7)

a)

Explain the importance of KEEPALIVE message in BGP.

[6]

 

b)

Describe two-crossing problem in mobile IP routing.

[6]

 

c)

Explain the label switching router.

[4]

   

OR

 

Q8)

a)

Explain the label swapping in2IP switching.

[6]

 

b)

Describe in detail concept of NAT and its variants.

[6]

 

c)

State the BGP notification messages.

[4]

Q9)

a)

Explain in detail mobile IP addressing along with their formats.

[8]

 

b)

Explain various features of IPv6.

[8]

   

OR

 

QIO) a)

What is autoconfiguration and renumbering in IPv6.

[8]

 

b)

Explain in brief a protocol suit, H.323 for IP telephony.

[8]

a)

1

Q

Explain various phases of Destination-Sequenced Distance-Vector

   

protocol used in MANET.

[W]

 

b)

Describe DSR protocol for ad hoc networks.

[W]

   

OR

 

 

Q12) Write short notes on :                                                                                                [18]

a)        Link-clustered architecture for a network.

b)        Applications of Ad hoc networking.

c)        Comparison of various Routing Methods.

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