Jawaharlal Nehru Technological University Anantapur 2010-1st Sem B.Tech Code :R7410506 1 IV ester(R07)Regular s, ember/ember MOBILE COMPUTING - Question Paper

Code :R7410506 1
IV B.Tech I Semester(R07)Regular Examinations, November/December 2010
MOBILE COMPUTING
(Computer Science & Engineering, info Technology and Electronic & Computer Engineering )
Time: three hours Max Marks: 80
ans any 5 ques.
All ques. carry equal marks
1. (a) discuss the applications of mobile computing.
(b) Name the main elements of the GSM system architecture and define their functions. elaborate
the advantages of specifying not only the radio interface but also all internal interfaces of the GSM
system.
2. (a) elaborate the bene¯ts of reservation schemas? How are collisions avoided during data transmission?
Why is the probability of collisions lower compared to classical Aloha?
(b) What is CDMA? discuss in detail.
3. (a) elaborate general issues of mobile IP regarding security and support of volume of service?
(b) What is meant by Encapsulation? discuss different kinds of Encapsulation.
4. (a) Write brief notes on congestion control in traditional TCP.
(b) Compare several enhancements to TCP for mobility.
5. (a) discuss about power aware computing.
(b) discuss the data recovery processing in detail.
6. (a) discuss push based data delivery mechanisms in detail.
(b) discuss the subsequent selective tuning and indexing techniques.
i. Directory method
ii. Flexible indexing method
7. (a) Compare the reactive and proactive routing protocols.
(b) discuss the properties of MANETs.
8. (a) discuss the functions of radio, baseband and link manager in Bluetooth.
(b) discuss about the wireless transaction protocol of the transaction layer.

Earning:   Approval pending.