BSc IT Sem III ATKT COMPUTER NETWORKS Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Attempt of the following: 15 marks
   • a. basic communication system with block diagram
   • b. parallel transmission and serial transmission
   • c. List and explain the function of each layer of ISO’s OSI model with neat diagram
   • d. Explain the process of Amplitude Shift Keying with the data ‘10110’
   • e. Differentiate between asynchronous transmission and asynchronous transmission
   • f. | Show Unipolar NRZ and Polar RZ encoding pattern for bit stream
2. Q2 Attempt of the following: 15 marks
   • a. and explain Model of Spread Spectrum in digital communication system
   • b. What are the problems in connecting multiple devices? How switching techniques overcome these problems?
   • c. What are different duties assigned to data link layer of ISO’s OSI model? Explain in
   • d. Explain basic ARQ system with its type
   • e. Generate the CRC code for message ‘1001101010’. Give generator polynomial
   • f. | Compare twisted pair, co-axial and fiber optic cable
3. Q3 Attempt any three of the following: 15 marks
   • a. Write note on Framing and explain any 2 framing methods with example
   • b. Explain concept. of sliding window with movement of both sender and receiver
   • c. Explain S-frame and U-frame of HDLC with format Draw and explain flow of ALOHA protocol and compare Pure ALOHA with Slotted Explain the architecture of Bluetooth with all its layer
   • f. Write a short note on
   • (b) Geostationary Satellite
4. Q4 Attempt any three of the following: 15 marks
   • a. What do you mean by forwarding? Explain Next hop method and Route method of
   • b. _ Differentiate between Adaptive routing algorithm and Non-adaptive routing algorithm
   • c. structure of IPv4 header and explain various fields
   • d. What are drawbacks of IP and how ICMP overcome it? Explain
   • e. Write a short note on OSPF and write features of OSPF
   • f. | What are advantages of Fragmentation? Explain two strategies of fragmentation
5. Q5 Attempt of the following: 15 marks
   • a. Explain functions given to transport layer of ISO’s OSI
   • b. following concepts with the context of TCP
   • (a) Stream delivery
   • (b) Sending and Receiving buffers
   • c. Write a short note on UDP
   • d. How DNS is beneficial for user? Explain
   • e. | What were the problems with message sending? And how MIME resolve them?
   • f. Explain the following:

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