JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III DATA COMMUNICATION AND COMPUTER NETWORKS Previous Question Paper (August/September - 2024 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
PART - A
List out the topologies used in networks.
Answer
The common network topologies are: Mesh, Star, Tree, Bus, Ring, and Hybrid topology.
Define Multiplexing. Write about FDMA.
Answer
Multiplexing is a technique that allows multiple analog or digital signals to be combined into one signal over a shared medium. Frequency Division Multiplexing (FDMA) divides the available bandwidth of a communication channel into distinct frequency bands, each assigned to a specific user or signal, allowing multiple transmissions to occur simultaneously without interference.
Explain flow control.
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List various ALOHA protocols.
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Describe why the class C is most commonly used Network class.
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What is fragmentation? Write its significance.
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What is a socket in transport layer?
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Why three way handshake is used in TCP.
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What is the header format of HTTP reply message?
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What are the key components in SMTP protocol?
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PART - B
List and explain about various layers in TCP/IP model.
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What are the steps involved in virtual circuit setup?
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Briefly explain about frame relay networks.
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Explain in detail about various types of multiplexing.
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What is the role of CSMA in multiple access? Explain.
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What is hamming code? Explain its purpose with an example.
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Compare and contrast the Go-Back-N ARQ Protocol with Selective-Repeat ARQ.
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Explain about various framing methods.
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Explain the shortest path routing with an example.
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List and explain in detail about the applications of tunneling.
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Explain the significance of options field of IP packet.
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Differentiate between ARP and RARP with an examples.
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Discuss about the TCP sliding window protocol for error control.
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Briefly explain about TCP deals with congestion control.
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Explain the role of quality of service in Internet.
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With a neat diagram, explain the TCP header fields in detail.
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Illustrate the role of POP3 in electronic mail applications.
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Explain the role of domain name service in Internet.
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Explain how a file transfer is done using FTP?
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Describe in detail about the concept of Telnet.
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