M.C.A. DEGREE EXAMINATION
– COMPUTER APPLICATIONS
FOURTH SEMESTER
– April 2009
RI 34 CA 5803 - MOBILE COMPUTING
Date & Time: 29/04/2009 / 9:00 - 12:00 Dept. No. Max. : 100 Marks
PART – A
Answer all Questions:
1.
List the algorithms for Time Division Multiple Access.
2.
List the logical channels of GSM .
3.
What are the phases of medium access hyper lan?
4.
List the scenarios supported by Wireless ATM.
5.
Define tunneling.
6.
Define routing. Name the different routing mechanisms.
7.
List the traditional TCP mechanisms that influences its efficiency.
8.
Define fast retransmit.
10 x 2 = 20
9.
List the parameters needed in establishing a secure session.
10.
What are the three classes of libraries of wireless telephony network?
PART – B
Answer all Questions: 5 x 8 = 40
11.a. Explain the hidden and exposed terminals, fast and near terminals .
(OR)
b. Explain the different orbits of the satellite system. Give their advantages and
disadvantages.
12.a. Explain the architecture of infrastructure based IEEE 802.11.
(OR) b Explain the generic WATM reference model..
13.a. Explain the packet delivery of mobile node with an example.
(OR)
b. Explain the initialization procedure of Dynamic Host Configuration protocol at
client node.
14.a. Explain snooping TCP.
(OR)
b. Explain mobile TCP.
15.a. Explain the architecture of WAP with a diagram.
(OR) b. Explain the logical model of Wireless application environment.
PART – C
Answer any TWO Questions:
(Q. No 16 is compulsory)
2 x 20 = 40
16. Explain in detail the different subsystems of GSM with a neat diagram.
17.a. Explain in detail the bluetooth piconet and how it can be formed.
b. Explain any two approaches of micromobility support.
18.a. Explain in detail about indirect TCP.
b. Explain the interaction between Wireless Telephony Application components
with a diagram.
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