1. Describe three types of errors. (05 Marks) (Dec.2019/Jan.2020 | 17 Scheme)

2. Explain the encoder and decoder logic of Cyclic Redundancy Check (CRC) coding with neat diagram. (10 Marks) (Dec.2019/Jan.2020 | 17 Scheme)

3. Given message = 1011011, k = 7 and generator polynomial P(X) = X ³ + X² + X⁰, n=3. Find the code word and design the checker in the receiver using Cyclic Redundancy Codes (CRC). (05 Marks) (Dec.2019/Jan.2020 | 17 Scheme)

4. Explain the working of stop-and-wait protocol for Noiseless channels. (05 Marks) (Dec.2019/Jan.2020 | 17 Scheme)

5. Explain selective repeat ARQ protocol for noisy channels. (05 Marks) (Dec.2019/Jan.2020 | 17 Scheme)

6. Explain the frame format of HDLC protocol. (05 Marks) (Dec.2019/Jan.2020 | 17 Scheme)

7. Describe the transition phases of PPP protocol with Finite State Machines. (05 Marks) (Dec.2019/Jan.2020 | 17 Scheme)

8. Find the code word for the following using CRC. Given information polynomial i(x) = x⁶ + x³ and generator polynomial g(x) = x³ + x + 1. (06 Marks) (Dec.2019/Jan.2020 | 15 Scheme)

9. Explain the working of any two protocols of noisy channels. (10 Marks) (Dec.2019/Jan.2020 | 15 Scheme)

10. Explain frame types of HDLC. (05 Marks) (Dec.2019/Jan.2020 | 15 Scheme)

11. Explain PPP protocol frame format, with the diagram. Also mention the different transition phases of PPP. (08 Marks) (Dec.2019/Jan.2020 | 15 Scheme)

12. What is framing data lank layer, explain different techniques to identify frame boundaries. (03 Marks) (Dec.2019/Jan.2020 | 15 Scheme)

13. How does single bit error differ from burst error? (04 Marks) (June/July 2019 | 15 Scheme)

14. Describe channelizing protocol. (07 Marks) (June/July 2019 | 15 Scheme)

15. Explain why collision is an issue in Random Access Protocol but not in Controlled Access Protocol? (09 Marks) (June/July 2019 | 15 Scheme)

16. Explain 10 Gigabit Ethernet implementation. (08 Marks) (June/July 2019 | 15 Scheme)

17. What are the advantages of dividing Ethernet LAN with bridge? (06 Marks) (June/July 2019 | 15 Scheme)

18. Define spread spectrum technique used by Bluetooth. (06 Marks) (June/July 2019 | 15 Scheme)

19. Explain Error detection using block coding. (06 Marks) (Dec.2018/Jan.2019 | 15 Scheme)

20. Identify the code word using CRC given data word 1001 and generator is 1011. (04 Marks) (Dec.2018/Jan.2019 | 15 Scheme)

21. Explain different frame types in HDLC. (06 Marks) (Dec.2018/Jan.2019 | 15 Scheme)

22. What is Internet checksum? If 'a sender needs to send four data items 7, 11, 12, 0. 6 answer the following: (06 Marks) (Dec.2018/Jan.2019 | 15 Scheme)

i) Find the checksum at the sender site.

ii) Find the check sum at the receiver site if there is no error.

23. Explain stop and wait protocol with appropriate diagram. (04 Marks) (Dec.2018/Jan.2019 | 15 Scheme)

24. Explain the frame format and transition phase of point to point protocol. (06 Marks) (Dec.2018/Jan.2019 | 15 Scheme)

25. Define Cyclic code. Find the code word using CRC for given data word 1001 and divisor 1011. (08 Marks) (June/July 2018 | 15 Scheme)

26. Define Frames. Explain the steps of flow control at data link layer with diagram. (08 Marks) (June/July 2018 | 15 Scheme)

27. Explain Stop - and - Wait protocol with neat diagram. (08 Marks) (June/July 2018 | 15 Scheme)

28. Explain the frame structure of PPP protocol, with neat diagram. (08 Marks) (June/July 2018 | 15 Scheme)

29. Find the code word at sender site using CRC given data word 101001111 and generate 10111. (05 Marks) (Dec.2017/Jan.2018 | 15 Scheme)

30. Explain different frame types in HDLC. (06 Marks) (Dec.2017/Jan.2018 | 15 Scheme)

31. Explain transition phases of PPP protocol. (05 Marks) (Dec.2017/Jan.2018 | 15 Scheme)

32. Explain with neat diagram, simple parity check code. (06 Marks) (Dec.2017/Jan.2018 | 15 Scheme)

33. Explain with examples, computation of internet checksum. List the steps undertaken by sender and receiver for error detection. (05 Marks) (Dec.2017/Jan.2018 | 15 Scheme)

34. Explain stop-and-wait protocol with appropriate diagrams. (05 Marks) (Dec.2017/Jan.2018 | 15 Scheme)

35. How does data words and code words is represented in block coding and also explain how can errors be selected and corrected by using block coding? (10 Marks) (June/July 2017 | 15 Scheme)

36. Find the code word using CRC given data is 1101 and generator is 1100. (06 Marks) (June/July 2017 | 15 Scheme)

37. With a neat diagram, explain any two protocols of noisy channel. (12 Marks) (June/July 2017 | 15 Scheme)

38. Explain the frame format of HDLC protocol. (04 Marks) (June/July 2017 | 15 Scheme)