It6601 mobile computing unit 2 questions
2 likes890 views
This document contains exam questions for the mobile computing course IT6601 covering topics related to mobile internet protocol and the transport layer. It includes short answer questions worth 2 marks, short note questions worth 8 marks, and longer explanation questions worth 16 marks on topics such as mobile IP, TCP, congestion control, and adapting TCP for mobile wireless networks. Sample questions address agent discovery, mobile IP tunneling and encapsulation, care-of address discovery, TCP slow start, problems using TCP in mobile networks, and approaches like indirect TCP, snooping TCP, and freeze TCP.
It6601 mobile computing unit 2 questions
- 1. Dr Gnanasekaran Thangavel, Professor and Head, RMK College of Engineering and Technology, Chennai Page1 IT6601 MOBILE COMPUTING UNIT II MOBILE INTERNET PROTOCOL AND TRANSPORT LAYER 2 MARKS 1. What do you mean by agent solicitation? 2. What are the disadvantages of mobile IP? 3. Draw the structure of a TCP segment. 4. What is encapsulation? 5. What is tunneling? 6. Define the following Home Network. Home Address Mobile Node Foreign Agent Foreign Network Correspondent Node Care-of-Address Agent Discovery Agent registration Tunneling Binding 8 MARKS 1. Explain why the traditional IP cannot be used in a mobile network. What are the main differences between the traditional IP and the mobile IP? How does mobile IP support mobile hubs? 2. Explain the following terms associated with mobile IP: (a) Home Address, (b) Mobile Node, (c) Foreign Agent, (d) Foreign Network (e) Home Network. 3. Write short notes on the following: (a) Correspondent Node, (b) Care-of-Address, (c) Agent Discovery. (d) Tunneling and Encapsulation. 4. Explain the discovery of care-of-address in the context of movement of a mobile to a foreign network. 5. Explain the agent advertisement procedure of mobile IP. 6. What do you mean by agent solicitation? Why are agent advertisement messages needed? 7. What do you mean by encapsulation in the context of mobile IP? Explain why these are needed. 8. Give a brief account of route optimization in mobile IP 9. What is slow-start in TCP operation? Explain its working. How does slow-start help improve the performance of TCP? 10. What problems would occur if the traditional TCP is used in mobile wireless environments? Discuss how TCP can be adapted to work efficiently in a mobile network environment. 11. Explain Indirect-TCP (I-TCP) with the help of a suitable schematic diagram. 12. Why are the I-TCP acknowledgements and semantics not end-to-end? What are the implications of this? 13. What is the snooping TCP approach in mobile wireless networks? Discuss its advantages.
- 2. Dr Gnanasekaran Thangavel, Professor and Head, RMK College of Engineering and Technology, Chennai Page2 14. Briefly discuss the M-TCP approach of extending TCP to work efficiently in mobile wireless networks. How does M-TCP maintain end-to-end semantics? 15. Explain the working of Freeze-TCP. What are the shortcomings of this protocol? 16. Why do congestions occur in a network? Explain how does TCP detect and handle congestions. 16 MARKS 1. Explain the layered architecture of the TCP/IP protocol suite and compare it with the ISO/OSI architecture. For slideshare presentations visit http://www.slideshare.net/drgst/presentations