STUPIDSID
Answer any four of the following:
1 (a)
Compare the performance characteristics of co-axial, twisted pair and fiber optic transmission media.
5 M
1 (b)
Exlain various LAN topologies.
5 M
1 (c)
What is meant by 'blocking' in switched networks? Bring out merits and demerits of a single stage space division switch.
5 M
1 (d)
Explain general principles of congestion control in Packet switching networks.
5 M
1 (e)
Explain Berkley API.
5 M
2 (a)
Compare circuit switching, packet switching and message switching.
10 M
2 (b)
What is Flow Control? Explain Sliding window flow control with neat diagrams. How is the window size Determined?
10 M
3 (a)
Explain in detail OSI model.
10 M
3 (b)
What is DSL technology? Explain various DSL technologies and compare them.
10 M
4 (a)
Draw the block diagrams of SONET and explain its operation. Also explain SONET frames. Explain the functional layers of SONET.
10 M
4 (b)
With reference to HDLC, Explain the following -
i) various frames of HDLC.
ii) Data transfer modes.
iii) Data trasparency.
iv) Unbalanced and balanced configuration
v) Piggy backing and Pipelining.
i) various frames of HDLC.
ii) Data transfer modes.
iii) Data trasparency.
iv) Unbalanced and balanced configuration
v) Piggy backing and Pipelining.
10 M
5 (a)
Explain different ARQ techniques in detail and state which ARQ technique is preferred for noisy links? And why?
8 M
5 (b)
Design a three stage space division switch with N=15, n=5, K=3 and show how Blocking occurs in this. Derive the condition required to make this switch non-Blocking.
6 M
5 (c)
Discuss various Routing strategies for packet switching networks.
6 M
6 (a)
Explain the following network connecting devices:-
i) switches
ii) routers
iii) gateway
iv) hub
v) bridge
i) switches
ii) routers
iii) gateway
iv) hub
v) bridge
10 M
6 (b)
Explain the MAC sublayer Frame format for IEEE802 Reference? Explain Fast Ethernet specifications. Also explain CSMA-CD in detail.
10 M
Write short notes on:
7 (a)
ISDN.
5 M
7 (b)
Sub-netting and Super-netting with an example.
5 M
7 (c)
IP utilities.
5 M
7 (d)
Token Re-insertion Strategies.
5 M
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