SPPU Computer Engineering (Semester 6)
Computer Networks
May 2017
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


Solve any one question from Q.1(a,b,c) &Q.2(a,b,c)
1(a) Explain DHCP in detail.
8 M
1(b) What is the difference between persistent and non persistent HTTP? Explain HTTP message format.
8 M
1(c) Differentiate between TCP and UDP protocol.
4 M

2(a) Explain Link State Routing with example.
8 M
2(b) Why TCP need four different timers? Explain function of each.
8 M
2(c) Differentiate between IPv4 and IP v6.
4 M

Solve any one question from Q.3(a,b) &Q.4(a,b)
3(a) Explain MAC Sublayer: Distributed Coordination Function (DCF) & Point Coordination Function( PCF) of 802.11 standard.
8 M
Write short note any two question from Q.3(b) (i, ii, iii)
3(b) Write short note on following
i) WML Script
ii) WAP 2.0
iii) SONET Frame Format.
8 M

4(a) Explain WLAN Architecture.
8 M
4(b) Draw and explain diagram of Frequency Hopping Spread Spectrum (FHSS) and Direct Sequence Spread Spectrum (DSSS)
8 M

Solve any one question from Q.5(a,b) &Q.6(a,b)
5(a) Explain DTN architecture in wired network.
8 M
5(b) What are the components of VANET? What do you mean by dedicated short range communication in VANET?
8 M

6(a) Draw and explain VOIP network architecture .
8 M
6(b) Explain an application of VOIP in real environment.
8 M

Solve any one question from Q.7(a,b) &Q.8(a,b)
7(a) What is the role of client layers in optical fiber?
8 M
Write short note any two question from Q.7(b) (i, ii, iii)
7(b) Write short note on
i) Role of Ethernet in Optical Network
ii) GMPLS
iii) Virtualization and its types
10 M

8(a) Explain ATM architecture with diagram.
8 M
8(b) Explain working of SDN in detail with diagram.
10 M



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