Computer Networks : Question Paper Dec 2016 - Computer Engineering (Semester 6) | Pune University (PU)

Computer Networks - Dec 2016

Computer Engg (Semester 6)

(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.

Solve any one question fromQ.1(a,b,c) and Q.2(a,b,c)

1(a) Explain transition from IPv4 to IPv6 using tunneling.(8 marks) 1(b) Why we need DHCP and Explain DHCP client transition diagram in detail.(8 marks) 1(c) Explain BGP routing protocol.(4 marks) 2(a) An organization is granted a block of addresses The organization needs to have 3 subblocks of addresses to use in its three subnets as shown below:
One subblock of 120 addresses.
One subblock of 60 addresses.
One subblock of 10 addresses. Find out th first Address, last address of each subblock and their respective subnet masks. Also draw diagram showing all the subblocks. Mention how many address are still unused.
(10 marks)
2(b) Explain Mobile IP protocol and describe triangular routing problem in Mobile IP.(6 marks) 2(c) Draw and explain UDP header in brief.(4 marks)

Solve any one question fromQ.3(a,b) and Q.4(a,b,c)

3(a) Explain Hidden station problem and expose station problem in detail.(8 marks) 3(b) Explain WAP layered architecture with suitable diagram.(8 marks) 4(a) What is Distributed and point coordination function of IEEE 802.11.(8 marks) 4(b) Compare and explain 802.11 ad, 802.11ac and 802.11n.(4 marks) 4(c) Draw the flowchart for CSMA/CA.(4 marks)

Solve any one question fromQ.5(a,b) and Q.6(a,b)

5(a) Describe VOIP using H.323 protocol.(8 marks) 5(b) Explain VANET architecture? List out the challenges in VANET.(8 marks) 6(a) Explain Video conferencing with Session Initiation Protocol.(8 marks) 6(b) Explain DTN layered architecture.(8 marks)

Solve any one question from Q.7 (a,b,c) &Q.8

7(a) What is virtualization? Explain different types of network virtualization.(6 marks) 7(b) Explain the components of optical network.(6 marks) 7(c) Draw the neat diagram to explain ATM layered architecture.(6 marks)

Write a short note any three Q.8(a,b,c,d)

8(a) Propagation of signals in optical fibers.(6 marks) 8(b) GMPLS.(6 marks) 8(c) Software Defined Network.(6 marks) 8(d) Piconets.(6 marks)


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