SPPU Foundation of Computer Network - May 2015 Exam Question Paper

SPPU Information Technology (Semester 4)
Foundation of Computer Network
May 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) Distinguish between baseband transmission and broadband transmission.

4 M

1 (b) Explain pulse code modulation.

4 M

1 (c) List the line coding schemes in digital transmission. Explain Polar NRZ scheme.

4 M

2 (a) Explain various transmission impairments in detail.

6 M

2 (b) Draw and explain FDM and TDM.

6 M

Answer any one question from Q3 and Q4

3 (a) Explain ISO-OSI model in detail.

8 M

3 (b) Write a short note on Virtual circuit networks.

5 M

4 (a) Explain with suitable example guided transmission media and unguided transmission media.

8 M

4 (b) Write a short note on TCP/IP protocol stack.

5 M

Answer any one question from Q5 and Q6

5 (a) Discuss the concept of redundancy in error detection and correction.

8 M

5 (b) Explain linear code block.

5 M

6 (a) Explain Go-back-N automatic repeat request protocol.

5 M

6 (b) What is Checksum ? Describe in detail internet checksum method with suitable example.

8 M

Answer any one question from Q7 and Q8

7 (a) Discuss CSMA/CD random access technique. How is collision avoidance achieved in the same?

7 M

7 (b) Explain TDMA and FDMA.

5 M

8 (a) Compare and contrast FDMA and CDMA in detail.

8 M

8 (b) Explain PPP in detail.

4 M

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