Download JNTUH MCA 4th Sem R19 2021 July-August 864AD Mobile Computing Question Paper

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Code No: 864AD

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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R19

MCA IV Semester Examinations, July/August - 2021

MOBILE COMPUTING

Time: 3 Hours

Max.Marks:75

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Answer any five questions

All questions carry equal marks

1. a) Explain about the system architecture of a GPRS system with a neat sketch. [15]
2. a) Elaborate the Hidden and Exposed station problems in mobile environment. [7+8]
3. a) Explain about the Code Division Multiple Access technique. [8+7]

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4. a) How a packet is delivered in Indirect TCP? Explain in detail. [15]
5. a) Explain about Generic Routing encapsulation. [7+8]
6. a) What is selective tuning and indexing? Explain different mechanisms of it. [7+8]
7. a) What is MANET? What are the characteristics of MANETSs? [15]
8. a) How to pass messages using Dynamic Source Routing algorithm. [15]

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9. a) Explain about the registration request header in mobile IP. [15]
10. a) Discuss in detail about IP tunneling mechanism. [15]
11. a) What is Data Cache Inconsistency? Enumerate various methods used for data cache consistency. [15]
12. a) Explain about one-to-many and many-to-many data synchronization mechanisms in mobile computing systems. [15]

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