JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B. Tech IV Year WIRELESS NETWORKS AND MOBILE COMPUTING Previous Question Paper (November /December- 2018 - R15)
Note: This question paper contains two parts A and B. 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 and may have a, b, c as sub questions.
Part A
List two limitations of mobile computing.
Answer
Two limitations of mobile computing are limited battery life of mobile devices and restricted bandwidth availability in wireless networks.
What is mobile station roaming number (MSRN)?
Answer
The Mobile Station Roaming Number (MSRN) is a temporary, location-dependent directory number assigned to a mobile station when it enters a foreign network. It is used by the Gateway Mobile Switching Center (GMSC) to route incoming calls to the specific visitor location register (VLR) area where the mobile station is currently roaming.
What are hidden and exposed terminals?
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What is slotted aloha?
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List any 4 requirements of mobile IP.
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Define Generic routing encapsulation (GRE).
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List two advantages of pull based delivery mechanism.
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What are the fundamental information delivery methods to wireless data applications?
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What is the need for Adhoc networks?
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Define Wireless Markup Language (WML).
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Part B
Explain four possible handover scenarios of GSM with a neat diagram.
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Explain various applications of mobile computing.
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Explain 802.11 with PHY and MAC layer.
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Explain functional architecture of GSM.
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Is it possible to jam CDMA. Justify your answer.
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Explain FDMA in detail.
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Discuss SDMA.
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Explain how to reduce the collisions in wireless networks.
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Explain in brief DHCP.
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Discuss indirect TCP in detail.
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What is snooping TCP? List out advantages of snooping TCP.
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Explain the generic routing encapsulation header with neat sketch.
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Discuss data synchronization protocols in wireless networks.
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Explain push based data delivery mechanism.
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Explain distributed and flexible indexing methods.
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Discuss communication asymmetry with a neat sketch.
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Explain MANET. How does a MANET differ from fixed infrastructure network?
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What are the requirements for Java card VM?
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Explain Security Problems in MANET.
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Discuss AODV routing algorithms in MANETS.
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