Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B. Tech IV AD-HOC AND SENSOR NETWORKS Previous Question Paper (January/February - 2023 - R18)
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
State two design challenges of a Manet.
Answer
Two primary design challenges of a MANET are dynamic topology, which causes frequent link failures, and limited bandwidth, which constrains data transmission capacity.
List the important characteristics of a Manet.
Answer
Key characteristics include: 1) Autonomous behavior where each node acts as both a host and a router; 2) Dynamic network topology due to node mobility; and 3) Multi-hop wireless connectivity where data packets are forwarded through intermediate nodes.
State the role of jitter in any broadcast protocol for Manet.
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Define and illustrate flooding mechanism.
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State the applications of geo-cast routing.
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State the reasons for poor performance of TCP over ad hoc links.
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Write the formula in LEACH protocol for CH selection.
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Define-Sensor, Sensor Node and Sensor Network.
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What is meant by data aggregation in sensor applications?
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Write about COUGAR, sensor database system.
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Part B
Write about any one location service algorithm for position-based routing in Manets.
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Illustrate any one forwarding strategy for position-based routing in Manets.
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State the merits and demerits of proactive and reactive routing protocols for Manets.
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Illustrate the working of ZRP, Zone-based Routing Protocol.
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What is meant by Broadcast Storm Problem in Manet routing? Illustrate with an example.
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Differentiate the tree-based and mesh-based multicast schemes for Manets.
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Explain the tree-based multicast scheme for Manets, AMRIS.
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Write the algorithmic steps for MPR (Multi-Point Relaying) protocol for Manet broadcasting.
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Giving a neat sketch, write about Mesh-based Geocast Routing (MGR) protocol.
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Explain the ELFN protocol for TCP over ad hoc links.
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What is meant by anycast? Explain the GeoTORA protocol making use of anycast.
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Explain how COPAS addresses the unfairness issue of TCP in ad hoc environment.
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Giving a architectural diagram, write about Great Duck Island application of wireless sensor networks.
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Explain how data dissemination in sensor networks is achieved using Directed Diffusion algorithm.
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Explain the differences between TEEN and APTEEN protocols in WSNs.
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Explain the distinction of PEGASIS protocol over LEACH.
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Explain how dynamic nature of WSN is addressed with adaptation concept?
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Write about query processing in wireless sensor networks.
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With the help of an architectural diagram, write about any one sensor database system.
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Write about in-network processing in sensor applications emphasizing its merits.
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