Master of Computer Application III (Science)
Examination: Oct Nov 2016 Semester V (Old CGPA)
SLR No. Day
Date Time Subject Name Paper No. Seat No.
SLR U
45
Friday
25/11/2016
10.30 AM
to
01.00 PM
Mobile Computing
C

Instructions: Question no. 1 2 are compulsory
Attempt any three questions from Q. No. 3 to Q. No. 7
Figures to the right indicate full marks.
Total Marks: 70
Q.1 Choose the most correct alternatives 10
Find odd man out from group AMPS, UMTS, CDMA, BPRN
AMPS UMTS
CDMA BPRN
A GSM super frame consists of multiframes.
51 26 0
1236 2,715,648
Which of below is a standard for WPNs
IEEE 802.11 IEEE 802.3
IEEE 802.15 All of above
A DHCP protocol is based on model
Agent discovery Agent solicitation O
Client server All of above
In a typical MAC if a station sense the carrier and start sending immediately
if the medium is idle, it follows
A persistent CSMA 1 persistent CSMA
Non persistent CSMA CSMA/CA
Full rate channels of GSM carry data at
114.4 kbps 2.4 kbps
200 kbps None of above
Which of the below is low power mode of Bluetooth device?
Park Hold
Sniff All of above
In a mobile IP, a tunnel usually ends at
HA FA
CN Router
HLR VLR data bases are maintained by
NSS RSS
AUC All of above
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10)RFCOMM in a Bluetooth protocol stack is a interface
Host controller Link control
Serial Line Radio Frequency
State True or False 04
In a GSM system, mobile stations base station subsystems forms RSS
Universal Frequency Reuse is a property of CDMA
In ARFCN, letter means adaptive
Maximum paging channels on a forward CDMA link are eight
Q.2 Write a short notes on the following 08
PRMA
IP in IP encapsulation
Answer the following 06
With suitable example explain transmission, detection and interference
range
Explain FHSS transmitter receiver.
Q.3 Answer the following 14
Explain wireless MAC slotted ALOHA. What are its advantages?
Explain CSMA/CD MA in wired network. With suitable example explain
why it fails in wireless network
Q.4 Answer the followings 14
With suitable diagram explain different radio interfaces in different
subsystems of a GSM architecture.
Explain authentication and Encryption in GSM signal processing
Q.5 Answer the followings 14
Explain the terms BSS and ESS in respect of IEEE 802.11.
Draw explain how Bluetooth Piconet Scatternet are formed
Q.6 Answer the following 14
What is agent discovery? Why it is required? Explain agent discovery
packet.
What is DHCP? With suitable diagram explain basic DHCP configuration
Q.7 Answer the following 14
Explain indirect TCP
Explain congestion control and slow start concept related to traditional TCP.
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