GTU Computer Engineering (Semester 7)
Mobile Computing
June 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Explain architecture of Mobile Computing and also discuss security issues in Mobile Computing.
7 M
1 (b) Explain Wireless LAN standards and Wireless LAN architecture.
7 M

2 (a) Explain GSM architecture and role of its components.
7 M
2 (b) Compare : IP and Mobile IP.
7 M
2 (c) Explain : Blue tooth and RFID.
7 M

3 (a) What is Cellular network? Explain frequency allocation in GSM Network.
7 M
3 (b) Explain Mobile Computing over SMS. Also explain pull and push SMS.
7 M
3 (c) Explain Call routing in GSM.
7 M
3 (d) Explain : Handover , Authentication and Security in GSM
7 M

4 (a) Explain Routing in Mobile Adhoc Network in detail.
7 M
4 (b) Explain : Indirect TCP and Mobile TCP
7 M
4 (c) Explain GPRS operations with its architecture.
7 M
4 (d) Compare : CDMA and GSM
7 M

5 (a) Discuss Billing and Charging in GPRS network.
7 M
5 (b) Explain : IPv6 and 3G Wireless
7 M
5 (c) Compare : H.232 and SIP
7 M
5 (d) Explain : Spread Spectrum and WAP
7 M



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