JNTUA MCA 4th Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)
Code: 06MC405B
MCA IV Semester Supplementary Examinations September/October 2014
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MOBILE COMPUTING
(For students admitted in 2008 only)
Time: 3 hours Max Marks: 60
Answer any FIVE questions
All questions carry equal marks
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- Discuss in brief about IEEE 802.11 standard.
- What is the need for a specialized MAC layer protocols for wireless networks? Explain in detail about SDMA and CDMA.
- Write about the process of packet delivery in mobile network layer.
- Discuss about the tunneling, reverse tunneling and encapsulation in detail.
- Write short note on the following:
- Indirect TCP.
- Mobile TCP.
- Selective retransmission.
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- Write about the various cache invalidation mechanisms.
- Discuss in brief about various transactional models in mobile computing environment.
- What do you mean by pull based, push based and hybrid data dissemination mechanisms? Explain one technique in each category.
- Explain why the conventional routing algorithms are not sufficient for routing in MANETs. Write in detail about DSDV and AODV in detail.
- Discuss in brief about the facilities provided in J2ME for implementing WAP and Bluetooth.
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