M.Sc. (Semester III) (CBCS) Examination Nov/Dec-2018
Computer Science
MOBILE COMPUTING
iI
Time 2½ Hours Max. Marks: 70
Instructions: All questions are compulsory.
Figures to the right indicate full marks.
Q.1 Multiple choice questions 14
The use of content provider in android is
To share the data between applications
To store the data in a database
To receive broadcast messages from the system
To make interactions with the system (device) and the apps
Which of the following is not the basis for SDMA algorithm?
Space Division multiplexing Cells
Sectorized antennas Space Division Duplex
FA can provide several services to the MN during its visit to the
Foreign network Home network
Mobile network Care-of-address
Forming groups of piconets called
Wi-Fi Scatternet
Radio waves Hopping
Antenna is the radiator
Symmetric Scattering
Isotropic Reflection
JVM stands for
Java viral machine Java virtual machine
Java viral model Java virtual model
The main purpose of is to inform the home agent of the current
location for correct forwarding of packets
Agent Discovery Registration
TDA Service
CDMA is used in technology
Microwave GASM
Infrared GSM
The behaviour TCP shows after the detection of congestion is called
Fast retransmit Fast recovery
TCP Slow start
None of the above
10) Changing VLRs with uninterrupted availability of all services is also called

Roaming Bluetooth
Wi-Fi UDP
Page 2 of 2
SLR-VG-219
11) Which is not an Android layout?
Activity Relative
Frame Table
12) The two directions, mobile station to base station and vice versa are
separated using different frequencies are known as
Uplink Downlink
Frequency division duplex Collision
13) In IEEE 802.11 wireless LAN, sub layer handles modulation and
encoding/decoding of signal.
COA PMD
MAC AMD
14) is an example of ad-hoc network
Radio MSS
Bluetooth Antennas
Q.2 Answer the following (any four) 08
What is spread spectrum?
What do you mean by ad-hoc network?
What is TDD?
Define correspondent node
Define the term TDMA
White notes on (any two) 06
UDP
Multiplexing
Infrastructure-based wireless networks
Q.3 Answer the following (any two) 08
Differentiate infra-red and radio transmission
Discuss GUI architecture of an Android.
How packet delivery to the mobile node occurs?
Answer the following (Any one) 06
Explain functional architecture of a GSM system in detail.
Describe the types of handover and handover decision?
Q.4 Answer the following (any two) 10
Describe frequency and code division multiplexing scheme.
Discuss FHSS with suitable example.
Explain basic DHCP configuration.
Answer the following (Any one) 04
Why to use ad-hoc networks?
How GSM authentication algorithm works? Discuss with diagram
d
Q.5 Answer the following (any two) 14
Discuss mobile originated call scheme in GSM.
Describe android system architecture in detail.
What is android? Explain an activity lifecycle of android with diagram.