Exam Details

Subject mobile computing
Paper
Exam / Course m.c.a.science
Department
Organization solapur university
Position
Exam Date November, 2017
City, State maharashtra, solapur


Question Paper

M.C.A. (Semester (CGPA) Examination Oct/Nov-2017
Science
MOBILE COMPUTING
Day Date: Saturday, 25-11-2017 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
In Frequency Spectrum is divided into smaller spectra and
is allocated to each user.
TDMA CDMA
FDMA FGMA
The advantage of using frequency reuse is
Increased capacity
Limited spectrum is required
Same spectrum may be allocated to other network
All of the above
The IEEE 802.11 uses
FHSS DSSS
OFDM Either or
Bluetooth is a technology that connects devices in a small
area.
Wired LAN Wireless LAN
VLAN None of the above
is used for cellular phone, satellite, and wireless LAN
communications.
Radio Waves Microwaves
Infrared waves None of these
In each station transmits its data in its assigned time slot.
FDMA TDMA
CDMA None of the above
MAC stands for
Medium Access Control Multipath Access Control
Medium Access Connection Mobile Access Connection
The board spectrum of the transmitted signal gives rise of
Fading Noise
Spread Spectrum All of the above
contained in the manifest xml file.
The permission the app requires
The list of strings used in the app
The source code
None of these
Page 2 of 2
SLR-SM-42
10) To create an emulator you need an AVD which stands for
Android Virtual Display Android Virtual Device
Active Virtual Device Application Virtual Display
State True or False: 04
The R. java file is where you edit the resources of android project.
There can be only one running activity at a given time.
The maximum throughput for slotted ALOHA is 18.4 per cent.
A mobile node is an end-system or router that can change its point of
attachment to the internet using mobile IP.
Q.2 Write short notes on the following: 08
Signals
FDMA
Answer the following: 06
What is roaming? Give its example.
Explain the terms Bluetooth and Piconet.
Q.3 Answer the following: 14
What is signal propagation? Explain the different ranges of signal
propagation.
What is Modulation? Explain Amplitude shift keying and Frequency shift
keying.
Q.4 Answer the following: 14
Explain how the demand assigned multiple access scheme can be
implemented for explicit reservation?
Explain how the multiple access with collision avoidance scheme can be
used to avoid hidden and exposed terminals?
Q.5 Answer the following: 14
Explain the protocol architecture of GSM system.
Discuss the authentication and encryption scheme used in GSM security,
Q.6 Answer the following: 14
Write brief notes on congestion control in traditional TCP.
Describe data transfer from a mobile node to a correspondent node and
vice versa.
Q.7 Answer the following: 14
Explain android application priority and process states.
Explain the Bluetooth discovering and bonding with remote device using
android.


Subjects

  • .net
  • artificial intelligence
  • computer communication network
  • computer graphics
  • computer oriented statistics
  • data mining and warehouse
  • data structures
  • database management system
  • digital circuits and microprocessors
  • digital image processing
  • discrete mathematical structures
  • distributed operating system
  • finite automata
  • introduction to computers
  • java programming
  • management
  • mobile computing
  • network security
  • numerical analysis
  • object oriented programming using c++
  • opeartions research
  • operating system
  • pattern recognition mobile computing
  • programming using - c
  • programming with php
  • software engineering
  • system software
  • uml
  • web design techniques
  • web technology