Jawaharlal Nehru Technological University Anantapur 2010-1st Sem B.Tech Code :R7410506 4 IV ester(R07)Regular s, ember/ember MOBILE COMPUTING - Question Paper
Thursday, 30 May 2013 01:10Web
Code :R7410506 4
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 localization and calling in GSM.
(b) provide reasons for a handover in GSM and the issues associated with it.
(c) Write short notes on HSCSD.
2. (a) List the basic features of CDMA systems. discuss soft handover.
(b) discuss how MACA can avoid hidden terminals and exposed terminals issues.
3. (a) What is the basic purpose of DHCP? Name the entities of DHCP.
(b) discuss about agent advertisement and delivery.
4. (a) define indirect TCP. discuss the modi¯cations of indirect TCP as the selective repeat protocol
and mobile - end transport protocol. elaborate the advantages and disadvantages of indirect TCP?
(b) Write short notes on congestion control in traditional TCP.
5. (a) elaborate the advantages of hoarding data at the mobile device?
(b) define data caching architecture. discuss data cache maintenance in a mobile environment .
6. (a) discuss interleaved push - pull based data delivery mechanisms.
(b) discuss the distributed index based and °exible indexing selective tuning techniques in detail.
7. (a) elaborate the security threats to a MANET? Why a MANET faces grater security threats than a
¯xed infrastructure networks?
(b) discuss Dynamic source routing in MANETs.
8. (a) discuss the physical layer of Bluetooth.
(b) Name mechanisms to improve web access for handheld devices. What is their common issue and
what led ¯nally to the development of WAP?
Earning: Approval pending. |