JNTU
JNTU B.Tech III MOBILE COMPUTING Previous Question Paper (May - 2019 - R16)
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 out the different types of logical channels that are used in GSM.
Answer
Logical channels in GSM are broadly categorized into two types: Traffic Channels (TCH), which carry encoded speech or user data, and Control Channels (CCH), which carry signaling and synchronization data required for network operation.
What are the characteristics of communication devices?
Answer
Communication devices are characterized by limited power supply (battery constraints), restricted computational and storage capabilities, portability, and the ability to operate over wireless links which are prone to interference and varying signal quality.
What are the drawbacks of FDMA?
Answer
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What is tunneling?
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What is meant by timeout freezing in mobile transport layer?
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What are the advantages of hoarding data at the mobile device?
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What is data synchronization?
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Explain the functions of Pull based mechanisms in data delivery mechanisms.
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What are the features of WAP?
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What are the properties of MANET?
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Part B
Explain the system architecture of GSM with neat sketch.
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Explain the protocol architecture of DECT.
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Describe about the MAC layer of IEEE 802.11.
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Explain about the CDMA and about its versions.
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What is the reason for the failure of MAC schemes in wireless networks. What is done in wired networks to avoid this effect?
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Explain about the Dynamic Host Configuration Protocol.
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What are the implications of traditional TCP on mobility? Discuss any one strategy that attempts to increase TCP performance in wireless and mobile environment.
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Explain about the data recovery process.
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Explain the issues related to quality of service.
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Explain the header format of Mobile TCP.
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Explain about the broadcast models.
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Explain about the Directory method in selective tuning technique.
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Explain about the data synchronization protocol.
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Explain about the classification of data delivery mechanisms.
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Explain about the Wireless Session protocol of the session layer.
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Explain about the MAC layer of Bluetooth.
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Describe the architecture of Windows CE.
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Explain the classification of routing algorithms.
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