R05410506 Mobile Computing B.E Question Paper : djriet.edu.in

Name of the College : Dasari Jhansi Rani Institute Of Engineering And Technology
University : JNTUK
Department : Computer Science And Engineering
Subject Code/Name : R05410506 – Mobile Computing
Year : 2008
Degree : B.E
Year/Sem : IV/I
Website : djriet.edu.in
Document Type : Model Question Paper

Mobile Computing : https://www.pdfquestion.in/uploads/djriet.edu.in/2930-R05410506-MOBILE-COMPUTING.pdf

DJRIET Mobile Computing Model Question Paper

IV B.Tech. I Semester Regular Examinations, November -2008
( Common to Computer Science & Engineering,Information Technology and Electronics & Computer Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions :

Related : Dasari Jhansi Rani Institute Of Engineering & Technology Environmental Studies B.E Model Question Paper : www.pdfquestion.in/2925.html

Set – I

All Questions carry equal marks :
1. With the help of a neat diagram, explain the reference model of wireless and mobile networks. [16]
2. Assume that there are N stations. Stations transmit without sensing the channel. Under what conditions the performance f this scheme is good. When the performance is poor. How carrier sensing helps to improve the situation. When carried sensing helps little. What is the suggested solution then? [16]
3. The goal of mobile IP is supporting end system mobility while maintaining scalability, efficiency, and compatibility in all respects with existing applications and internet protocols. Explain. [16]
4. Explain in detail classical enhancements to TCP for mobility. [16]
5. Explain in detail the transactional model of database. [16]
6. (a) The push based broad cast are not suitable for large data size, justify.
(b) Explain about on demand data scheduling. [8+8]
7. (a) What is MANET? How is it different from cellular system?
(b) What are the essential features of MANET?

(c) What are the applications of MANET? [6+5+5]
8. Write a notes on the following:
(a) WDP
(b) WTLS. [8+8]

Set – II

1. What is electromagnetic spectrum? Which part of the spectrum is used for wireless and mobile communications? Consider all possibilities like building a network, cellular communications, and satellite networks etc. [16]
2. Suggest a multiple access scheme which give good performance in all situations. [16]
3. (a) What are the entities that are part of mobile IP? Explain them with an example network.
(b) What is tunneling in mobile IP? [8+8]
4. Compare the classical approaches to make the TCP suitable for mobile environment. Give their relative advantages and disadvantages. [16]
5. (a) Discuss the necessity of cache and briefly discuss about caching invalidation mechanism.
(b) Explain the Query processing of database. [8+8]
6. (a) What are the steps involved in retrieving the indexed data frames.
(b) Explain on-demand data scheduling scheme for variable size of items. [8+8]
7. What is mobile ad-hoc network? Explain in detail about MANETS. [16]
8. What is WAE? Discuss about its logical model. [16]

Set – III

IV B.Tech. I Semester Regular Examinations, November -2008
Mobile Computing
Common to Computer Science & Engineering,Information Technology and Electronics & Computer Engineering
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks

1. Explain the different mobile phone technologies. [16]
2. How starvation can be avoided in all multiple access schemes which you have stud- ied. Explain in detail. [16]
3. (a) What is the role of Home agent and Foreign agent in mobile IP?
(b) What are the two possibilities for location of COA? [8+8]
4. Explain in detail Indirect TCP. [16]
5. Explain the issues ensuring of QOS in mobile environment. [16]
6. What is indexing? Discuss the various types of indexing techniques in detail. [16]
7. What are the advantages of MANETS and explain in detail? [16]
8. Explain in detail about wireless marked language and its features. [16]

Set – IV

IV B.Tech. I Semester Regular Examinations, November -2008
Mobile Computing
Common to Computer Science & Engineering,Information Technology and Electronics & Computer Engineering
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. Explain in detail about GSM. [16]
2. Explain how priority based multiple access schemes can be implemented. [16]
3. With the help of an example diagram, explain how IP packets are transferred from fixed node to mobile node. [16]
4. Explain in detail Snooping TCP. [16]
5. Explain the issues in ensuring QOS in mobile environment. [16]
6. What is balanced push-pull mechanism? In detail explain about IPP. [16]
7. What are the disadvantages of MANETS and explain in detail? [16]
8. (a) With a neat diagram explain the WAP architecture.
(b) Discuss briefly the user scenarios of Bluetooth. [8+8]