Code No: 55209/MT
M.Tech. II-Semester Examinations, July/August -2006.
(Computer Science and Engineering)
Time: 3 hours Max.Marks:60
Answer any FIVE questions
All questions carry equal marks
– – –
1.a) What is handover? Why it is required? What are the problems
b) Explain different mobile applications.
c) With the help of diagram, explain GSM system architecture.
2.a) What re hidden and exposed terminal problems? Suggest solution
for both the problems.
b) Does cellular Networks use SDMA? Justify your answer.
c) What are the disadvantages of TDMA and FDMA?
3.a) Why DHCP is required? Explain its working.
b) Explain Tunneling and encapsulation in mobile IP.
4.a) What is the major problem for TCP in wireless Networks?
b) Suggest some solutions for the above problem which are valid
in single hap Networks?
5.a) What is cauching invalidation? Give some approaches for the
b) Define quality of service. As an end user how do you measure
quality of service. Assume yourself as Technical manager and
suggest some quality of service matrics.
6.a) Give classification of data delivery mechanism.
b) Explain how indexing is useful in Data dissemination.
7.a) What is MANET. Give salient features of MANET.
b) What are the applications of MANET. Give both commercials
and non-commercial applications.
8.a) Explain J2ME.
b) How Blue Tooth in different from wireless LAN.
c) Explain security problems in Blue Tooth.