Anna University Chennai 2008-7th Sem B.Tech Information Technology IT1402 – MOBILE COMPUTING Anna University - Question Paper

B.E. / B.Tech DEGREE EXAMINATION, NOVEMBER/DECEMBER 2008

Seventh Semester

info Technology

IT1402 – MOBILE COMPUTING

(Regulation 2004)

Time: 3 hours Maximum: 100 marks

ans ALL ques..

PART A – (10 x 2=20 marks)

1. Differentiate analog modulation and digital modulation.
2. How are guard spaces realized ranging from users in CDMA?
3. elaborate the general issues of satellite signals travelling from a satellite to
receiver?
4. Differentiate symmetrical and asymmetrical communication system.
5. What is HIPERLAN?
6. How is mobility restricted using WLANS?
7. What could be quick ‘solutions’ and why don’t they work?
8. What advantages does the use of IPV six offer for mobility?
9. Write the advantages and disadvantages of mobile TCP.
10. describe fast retransmit.

PART B – (5 x 16 = 80 marks)

11. (a) discuss in detail about multiplexing.

Or
(b) discuss the subsequent :
(i) MAC
(ii) SDMA.

12. (a) discuss the functional architecture of a GSM system.

Or
(b) explain about digital video broadcasting.

13. (a) discuss the concept of blue tooth architecture.

Or
(b) discuss the concept of IEEE 802.11 medium access control layer.
14. (a) discuss the subsequent :
(i) DSDV [Marks 8]
(ii) Ad-hoc DSR. [Marks 8]

Or
(b) explain about tunneling and encapsulation mechanism and reverse tunneling.

15. (a) discuss and detail about traditional TCP.

Or
(b) (i) Briefly discuss about indirect and snooping TCP. [Marks 8]
(ii) Briefly explain about WAP.[Marks 8]

Earning:   Approval pending.