Download JNTUH MCA 5th Sem R15 2019 April-May 824AZ Mobile Computing Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 5th Sem (Fifth Semester) Regulation-R15 2019 April-May 824AZ Mobile Computing Previous Question Paper

R15

Code No: 824AZ















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA V Semester Examinations, April/May - 2019

MOBILE COMPUTING

Time: 3hrs













Max.Marks:75


Note: This question paper contains two parts A and B.

Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question carries
10 marks and may have a, b, c as sub questions.



PART - A



















5 ? 5 Marks = 25

1.a) Explain the 3-tier architecture for Mobile Computing.







[5]

b) Brief about NSS component of GSM protocol.









[5]

c) Distinguish the adhoc wireless network from the one with infrastructure.

[5]

d) Write about CLDC configuration of J2ME.









[5]

e) Differentiate Lossy and lossless compressions of Multimedia.





[5]



PART - B

















5 ? 10 Marks = 50



2.a)

Explain how Mobile IP solves the IP addressing issues of Mobile environment?

b)

Write about applications of Mobile Computing.









[5+5]

OR

3.a)

Based on the environment mobility characteristics, mention the different Mobile



Computing functions.

b)

Mention the salient features of IPv6 protocol.









[5+5]


4.

With a neat sketch write about the GSM system architecture.





[10]

OR

5.

Write about SMS value-added Services Architecture with the help of a diagram. [10]


6.a)

Write about IEEE 802.11 WLAN architecture.



b)

Write about any one IEEE 802.11 Physical layer protocol.





[5+5]

OR

7.a)

Explain how mobility is dealt with in Wireless LAN?

b)

Write about WLAN Security.













[5+5]


8.a)

Giving the hierarchy, write about UI elements in MIDP of J2ME.

b)

Brief about the H.323 framework for Voice Over IP (VOIP).





[5+5]

OR

9.

With a neat sketch, write about the Windows CE architecture.





[10]


10.a) Write about Audio and Video Coder and Decoders (CODECs).



b) Write about 3GPP security architecture.











[5+5]

OR

11.

Through the architectural diagram, elaborate about IP Multimedia Subsystems (IMS).






















[10]



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