JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV WIRELESS NETWORKS AND MOBILE COMPUTING Previous Question Paper (December - 2019 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
Part A
List the specific features of GSM.
Answer
The specific features of GSM include support for international roaming, high-quality voice services, secure communication through authentication and encryption, and the use of the Subscriber Identity Module (SIM) for user mobility.
Differentiate Infrared transmission and radio transmission.
Answer
Infrared transmission uses high-frequency light waves, is limited to line-of-sight communication, and cannot penetrate walls, whereas radio transmission uses electromagnetic waves, supports non-line-of-sight communication, and can penetrate obstacles.
What are the motivational factors for a specialized MAC?
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What is MACAW protocol?
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Define reverse tunneling.
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What is query processing?
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What is hybrid broadcast model?
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List out the softwares used in Data synchronization.
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What are the memory manager features of Windows CE?
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What are the advantages of DSR?
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Part B
Explain about the radio interference of GSM.
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Give a brief note on 2G and 3G.
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Explain about the Link Management in Bluetooth.
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Explain about the architecture of Mobile Computing.
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Explain about Demand Assigned Multiple Access Scheme.
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What are the countermeasures in SDMA, TDMA, FDMA and CDMA?
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Explain the term inference in the space time, frequency time and code domain.
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Is it possible to use a composite TDMA/ CDMA scheme? Justify your answer.
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Explain various requirements of Mobile IP.
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Discuss Generic Routing Encapsulation.
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How does mobile IP works. Explain its architecture?
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What are the advantages and disadvantages of snooping TCP?
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List what are the hoarding techniques and discuss in detail.
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Explain context aware computing.
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Explain classification of data delivery mechanism.
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Explain distributed indexed based method.
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Explain security threats in MANETS? Why a MANET faces greater security threats than fixed infrastructure network.
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Describe the architecture of palm OS.
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Discuss about mobile agents.
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Distinguish between reactive and proactive protocols.
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