Download JNTUH MCA 3rd Sem R09 2017 August F3302 Computer Networks Question Paper

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Code No: F3302 R09

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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MCA III Semester Examinations, August - 2017

COMPUTER NETWORKS

Time: 3hrs Max.Marks:60

Answer any five questions

All questions carry equal marks

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1. What is Analog and Digital Signal? Explain each with suitable example.
2. What are the responsibilities of ISO/OSI reference model layers? Explain in details. [6+6]
3. Write briefly about digital transmission, multiplexing and Transmission media (Guided and Un Guided)
4. List the differences among circuit switched networks, Datagram networks, and virtual circuit networks. [6+6]
5. What are design issues of Data Link layer? Explain with suitable example

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6. Discuss the HDLC and Point to Point Protocol (PPP). [6+6]
7. Write Short notes
   1. Fast Ethernet.
   2. Giga-Bit Ethernet
   3. Wireless LANSs. [12]

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8. Write briefly about the backbone networks-; Virtual Networks and wireless WANS. Discuss the advantages of SONET and its frame format. [6+6]
9. Write briefly about the multicast routing protocols. Discuss the internetworking and tunneling used in network layer- [12]
10. Discuss the TCP and UDP header format with neat diagram. How congestion control and QoS will be achieved in transport layer? Explain. [6+6]
11. What are FQDN and PQDN? Explain DNS in Internet. [12]

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