SRM University 2011-7th Sem B.Tech Electronics and Communications Engineering (P.T)/ECE/ester/Mobile Computing - Question Paper

B.Tech(PT) DEGREE EXAMINATION, DECEMBER 2011

Seventh Semester

PEC055-MOBILE COMPUTING

PART A (10 * two = 20 Marks) (Answer all the Questions)

1. What are the advantages and disadvantages of Mobile TCP?
2. What are the differences ranging from AODV and Standard Distance Vector Algorithm. Why are extensions needed?
3. Define Fast Retransmit?
4. How can DHCP be used for Mobility and Support of Mobile IP?
5. Write the features of IEEE 802.16?
6. Write the classification of Satellite Systems?
7. What is L2Cap? Write the packet format of L2CAP?
8. Write the differences ranging from Classical Aloha and Slotted Aloha?
9. How are the guard spaces realized ranging from users in CDMA?
10. How mobility restricted using Wireless LANs?

PART B (5 * 16 = 80 Marks)

11. a) explain in detail about DSSS and FHSS with neat diagrams?
Or b) define in detail about different Multiplexing Techniques?

12. a) explain in detail the PHY layer of WLAN?
Or b) discuss the concept of bluetooth architecture?

13. a) explain about the Cellular networks and Cordless Systems?
Or b) discuss the architecture of Wireless Local Loop in detail?

14. a) explain in detail about different encapsulation mechanisms?
Or b) discuss the operation of Indirect TCP and Snooping TCP?

15. a) explain about DSDV and AODV in adhoc Networks?
or b) define in detail the WAP protocol, architecture with neat diagrams?

Earning:   Approval pending.