JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III COMPUTER NETWORKS Previous Question Paper (July/August - 2023 - R13)
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 the layers in TCP/IP network model.
Answer
The TCP/IP model consists of the following four layers: Application Layer, Transport Layer, Internet Layer, and Network Access (or Link) Layer.
Explain guided transmission media.
Answer
Guided transmission media provide a physical path along which signals are directed. These include twisted-pair cable, coaxial cable, and fiber-optic cable. In these media, electromagnetic waves are guided through a solid medium, which confines the signal and protects it from external interference.
What is a router?
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What are collision free protocols?
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What is static routing?
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Explain the reasons for occurrence of congestion in networks.
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What is Address Resolution Protocol (ARP)?
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What is CIDR?
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Explain DNS.
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What are services provided by application layer?
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Part B
What are the reasons for using layered protocols?
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What is OSI model? Explain in detail the functions of different layers in OSI model.
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Explain the operation of sliding window protocol.
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Explain the design issues in data link layer.
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Explain CSMA with collision detection.
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Briefly explain the operation of ALOHA system.
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Describe the Ethernet standards.
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Explain the purpose of spanning tree bridges in mac sub layer.
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Using an example network, explain distance vector routing.
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Explain congestion control mechanisms at network layer.
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Enumerate the difference between virtual circuit and data gram subnets.
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Explain hierarchical routing.
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In detail, explain the different addressing schemes in computer networks.
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Explain features and purpose of ICMP protocol.
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Explain crash recovery in transport layer.
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Briefly explain the operation of DHCP.
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Explain the TCP connection establishment, TCP connection release, and TCP connection management.
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With respect to application layer, write short notes on:
Client server model
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SSH
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