Jawaharlal Nehru Technological University Hyderabad 2011-3rd Sem M.C.A Code No: S0902 R09 s- MOBILE COMPUTING - Question Paper

1. Write about GSM, a 2G cellular communication protocol, based on the subsequent criteria:
a) Handoff Methods
b) Architectural Diagram
2. discuss and distinguish the terminology with suitable examples: SDMA, TDMA, FDMA, and CDMA.
3. With a neat sketch, discuss the subsequent concepts of Mobile IP:
i. Encapsulation
ii. Tunneling.
iii. COA
4. discuss the reasons for the unsuitability of TCP for mobile environment. List the different concepts to overcome those limitations. discuss any one.
5. State the different mobile transaction models. discuss the Kangaroo Transaction Model giving its merits and demerits.
6. discuss why pull model is inefficient for mobile environment?
Write about new data dissemination algorithms for mobile environment.
7. Write about any 1 hoarding technique and any 1 caching invalidation mechanism for mobile environment.
8. Write short notes on:
a. Bluetooth
b. WAP

Earning:   Approval pending.