Tiêu đề imp questions ✅

DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING COMPUTER NETWORKS UNIT WISE QUESTION BANK UNIT-I SHORT ANSWER QUESTIONS. 1. What are the functions of Data link layer? 2. Explain the key elements of a protocol. 3. What are the functions of data link layer? 4. Write functionalities of transport layer? 5. What is a computer network? Give an example. 6. Define upward multiplexing and downward multiplexing with examples 7. What is the role of HTTP protocol in www? 8. What is the advantage of layered protocol architecture? 9. Define a)Internetwork b)Protocol c)Port 10. What are the applications of computer networks? 11. Distinguish between connectionless and connection-oriented service? 12. What are the features of OSI model? 13. What are the advantages of TCP/IP over OSI? 14. What are the data link layer design issues? 15. Discuss the design issues for layers. 16. Write the advantages of optical fibre over twisted-pair and coaxial cables. 17. What are the advantages of having layered architecture? 18. Write about communication satellites. 19. Write short notes on Wireless Transmission
DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING LONG ANSWER QUESTIONS 1. Explain in detail about ISO-OSI and TCP/IP reference model in detail. 2. Compare ISO-OSI Reference Model and TCP/IP Reference Model in terms of functions of layers and differences between the two 3. Draw the OSI reference model and briefly explain all the layer function. 4. What are the functions of the network layer? List out the design issues in it. 5. Explain about the key design issues in network layer. 6. Explain similarities and differences between ISO-OSI and TCP/IP architecture. 7. What are the two reasons for using layered protocols? What is one possible advantage of using layered protocols? 8. Elaborate the issues that the designers of the network layer must consider. 9. Describe ISO-OSI model. 10. Explain about various transmission media in physical layer with a neat diagram. 11. Describe in detail about Light wave transmission. 12. Write in detail on Time–Division Multiplexing and Frequency-Division Multiplexing with an example for each. 13. Describe guided transmission media. 14. Write short note on Wireless Transmission.(3M) NOTE: Study multiplexing topics and wireless LANS
DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING UNIT-II Short Answer Questions 1. What is bit stuffing? Give an example. 2. Find CRC code for P=1100011 and M=11100011(P-Divisor and M-Message). 3. Differentiate between pure and slotted ALOHA 4. Explain the importance of framing with reference to data link layer. 5. Compare pure ALOHA and slotted ALOHA with reference to channel utilization. 6. Describe the concept and importance of piggybacking. 7. Briefly describe CSMA/CD and CSMA/CA. 8. What do you mean by framing? 9. . What are the uses of MAC sub layer ? 10. What are the functions of data link layer? 11. What is piggybacking? NOTE: Also practice block coding, hamming code and CRC examples LONG ANSWER QUESTIONS 1. Explain the importance of MAC sub layer. 2. Explain Sliding Window protocol with example. 3. Explain CSMA protocol. 4. What is CSMA protocol? Explain non-persistent CSMA, 1 persistent CSMA persistent protocols and compare their performance 5. Explain about ALOHA multiple access protocol. 6. What is the purpose of CSMA CD? And Explain it. 7. Explain and demonstrate Selective repeat sliding window Protocol with an example.
DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING 8. Explain in brief about the design issues in the data link layer. 9. What are the functions of medium access control layers protocol? Explain. 10. Explain the algorithm for CRC method. 11. What are the different types of error detection methods? Explain the CRC error detection technique using generator polynomial x4+x3+1 and data 11100011. 12. Explain about Go-Back-N Sliding window protocol.