SPPU Computer Engineering (Semester 6)
Computer Networks
June 2015
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


Answer any one question from Q1 and Q2
1 (a) Explain FTP in detail.
7 M
1 (b) What is QoS. Explain QoS parameters.
8 M
1 (c) What is significance of priority & flow label fields in IPv6.
5 M

2 (a) Explain functionality of DHCP server, proxy server, file server, Web server.
8 M
2 (b) Draw & explain three way handshake process of TCP.
4 M
2 (c) Describe in short the importance & working of following commands:
i) Ping
ii) Netstat
iii) Traceroute
iv) IP config
8 M

Answer any one question from Q3 and Q4
3 (a) Explain WAP protocol stack.
8 M
3 (b) Write short note on:
i) Wireless LAN
ii) WML script
8 M

4 (a) Explain all versions of 802.11 standard & compare.
8 M
4 (b) Explain WLAN architecture.
8 M

Answer any one question from Q5 and Q6
5 (a) Draw & explain VOIP network architecture.
8 M
5 (b) Explain VANET architecture? What are the challenges in Vehicular Network.
8 M

6 (a) What is DTN? Explain different layers of DTN.
8 M
6 (b) Explain advantages & disadvantages of VOIP over traditional telephone network.
8 M

Answer any one question from Q7 and Q8
7 (a) Explain ATM architecture.
8 M
7 (b) Write short note on: (any two)
i) Components of optical network
ii) GMPLS
10 M

8 (a) What is virtualization? Explain its type.
8 M
8 (b) Explain SONET frame structure.
6 M
8 (c) What are different client layers of optical fiber.
4 M



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