M.C.A.(Science)(Semester (CGPA) Examination, 2017
PATTERN RECOGNITION MOBILE COMPUTING
Day Date: Thursday, 27-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions: Question No.1 and 2 are compulsory.
Attempt any 3 questions from Q.NO. 3 to Q. No. 7
Figures to the right indicate full marks.
Q.1 Choose the most correct alternatives: 10
Real antennas behave like
Isotropic Radiator Non-isotropic Radiator
Monotonic Radiator None of these
In cellular technology the concept used is
Time Reuse Code Reuse
Frequency Reuse None of these
Bluetooth is an example of
Infrastructure network Ad-hoc network
Streamed network None of these
is centralized scheme with one master and several
slaves.
Polling Aloha SDMA All of these
The uplink frequency of P-GSM system is
1850-1910 MHz 1710-1785 MHz
890-915 MHz None of these
is not a part of classical TCP.
Indirect TCP Mobile TCP
Snooping TCP All of these
The type of access used in GSM technology is
FDMA/TDMA CDMA OFDMA None of these
The protocol salves the problem of hidden and exposed
terminal.
PRMA DAMA TDMA MACA
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What is the life cycle of services in android?
onCreate()->onStartCommand()->onDestroy()
onRecieve()
final()
Service life cycle is same as activity life cycle.
10) What is APK in android?
Android packages Android pack
Android packaging kit None of above
State True or False: 04
The subscriber identity module which stores all
user-specific data.
The security services offered by GSM include
non-confidentiality.
Application contexts are independent of the activity life cycle.
There can be only one activity at given time.
Q.2 Write short notes on the following: 08
Hidden and Exposed terminals.
ii) Near and Far terminals.
Answer the following: 06
What are the advantages of using the infra-red technology?
ii) Define the terms mobile node and correspondent node.
Q.3 Answer the following: 14
What is multiplexing? Explain frequency division multiplexing
scheme.
Explain cellular system. Write its advantages and disadvantages.
Q.4 Answer the following: 14
Explain the functional architecture of GSM system.
Explain the data transfer from mobile node to a correspondent
node and vice versa.
Q.5 Answer the following: 14
Describe in brief the congestion control in traditional TCP.
Explain localization and calling in GSM.
Q.6 Answer the following: 14
Explain android system architecture with its components.
Explain the life cycle of an android activity.
Q.7 Answer the following: 14
What is Bluetooth? Explain how to control the Bluetooth hardware
using different methods.
Explain how to manage your Wi-Fi using Wi-Fi Manager android
Wi-Fi connectivity service?