Computer Networks - Jun 2015

Computer Engg (Semester 6)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks.

Answer any one question from Q1 and Q2

1 (a) Explain FTP in detail.(7 marks) 1 (b) What is QoS. Explain QoS parameters.(8 marks) 1 (c) What is significance of priority & flow label fields in IPv6.(5 marks) 2 (a) Explain functionality of DHCP server, proxy server, file server, Web server.(8 marks) 2 (b) Draw & explain three way handshake process of TCP.(4 marks) 2 (c) Describe in short the importance & working of following commands:
i) Ping
ii) Netstat
iii) Traceroute
iv) IP config(8 marks)

Answer any one question from Q3 and Q4

3 (a) Explain WAP protocol stack.(8 marks) 3 (b) Write short note on:
i) Wireless LAN
ii) WML script(8 marks) 4 (a) Explain all versions of 802.11 standard & compare.(8 marks) 4 (b) Explain WLAN architecture.(8 marks)

Answer any one question from Q5 and Q6

5 (a) Draw & explain VOIP network architecture.(8 marks) 5 (b) Explain VANET architecture? What are the challenges in Vehicular Network.(8 marks) 6 (a) What is DTN? Explain different layers of DTN.(8 marks) 6 (b) Explain advantages & disadvantages of VOIP over traditional telephone network.(8 marks)

Answer any one question from Q7 and Q8

7 (a) Explain ATM architecture.(8 marks) 7 (b) Write short note on: (any two)
i) Components of optical network
ii) GMPLS(10 marks) 8 (a) What is virtualization? Explain its type.(8 marks) 8 (b) Explain SONET frame structure.(6 marks) 8 (c) What are different client layers of optical fiber.(4 marks)