M.C.A. DEGREE EXAMINATION - COMPUTER APP.
FIFTH SEMESTER – APRIL 2012
CA 5803 - MOBILE COMPUTING
Date : 16-04-2012 Dept. No.
Time : 9:00 - 12:00
Max. : 100 Marks
PART – A
10 x 2 = 20 Answer all questions:
1.
List the algorithms for Time Division Multiple Access.
2.
What are the services offered by GSM?
3.
What are the advantages of wireless LAN?
4.
List the WATM services.
5.
Define encapsulation.
6.
Define routing.
7.
What is slow start in TCP?
8.
List the classical enhancements to improve TCP performance.
9.
List the features of wireless session protocol.
10.
List the parameters needed to establish secured session.
Answer ALL questions:
11. a. Describe the GPRS architecture.
(OR) b. Explain the different channels of GSM.
PART – B
5 x 8 = 40
12. a. Write short notes on the system architecture of IEEE 802.11.
(OR)
b. Give a detailed explanation on the different phases of Hyperlan-1.
13. a. Explain the packet delivery to and from the mobile node with a neat diagram.
(OR)
b. With necessary diagram explain DHCP.
14. a. Describe Indirect TCP.
(OR)
b. Discuss Traditional TCP.

15. a. Explain the different components in WAP architecture.
(OR)
b. Explain the Wireless Telephony application logical architecture.
Answer any two questions:
PART – C
(Q. No 16 is compulsory)
16. Explain in detail about the GSM with necessary diagram.
17. a. Explain in detail about Bluetooth Scatternet formation.
b. Explain the following approaches of micro mobility support. a. Cellular IP
2 X 20 = 40 b. HAWAII
18. a. Explain in detail about snooping TCP.
b. Explain the interaction between Wireless Telephony Application components
with a diagram.
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