Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2018-19 ECS 087 Mobile Computing Question Paper
Printed Paes: 02 Sub CodezNIT-801/ECS-087
Paperwz? RouNo.I | | | I I I I I I I
B TECH
(SEM?VIII) THEORY EXAMINATION 2018-19
MOBILE COMPUTING
T ime: 3 Hours T 0tal Marks: 100
Note: 1. Attempt all Sections. If require any missing data; then choose suitably.
SECTION A
1. Attempt all questions in brief. 2 x 10 = 20
What is Mobile Computing?
What are the basic differences between wirelesses WAN and wireless LAN.
Describe Temporary Ordered Routing Algorithm (TORA).
In context to cellular network, explain near and F ar Problem.
What do you mean by cell in cellular concept?
Explain Data Management issues.
What is Bluetooth?
De?ne F requency Reuse.
What are the different GSM Services?
Explain MANET.
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SECTION B
2. Attempt any three of the following: 10x3=3
a. What are the various characteristics of mobile computing? Discuss challenges being
faced to support mobile computing.
b. ?CSMA/CD is not a suitable protocol for wireless LAN?. Give reasons in favor of
or against the statement.
What is General Packet Radio Service (GPRS)? Describe its architecture in detail.
With neat sketch, explain architecture of 802.11 LAN and explain its MAC Logic.
e. What are the characteristics of MANET? Explain the process of Path Discovery and
Path Maintenance in DSR Routing Protocols.
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SECTION C
3. Attempt any one part of the following: 10x1=10
21. Why does traditional TCP not perform well in wireless network? Discuss different
approaches for TCP improvement.
b. Describe multi-cluster Architecture. Discuss any one algorithm required to partition
the network in to several clusters.
4. Attempt any one part of the following: 10x1=10
21. Discuss the architecture of GSM. Also discuss the security issues to implement
GSM.
b. Describe the Fault Tolerance issues involved in Mobile Computing? What is the
Monitoring Process?
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5. Attempt any one part of the following: 10x1=10
a. List of entities of mobile IP & describe the data transfer from mobile node to a
fixed node and Vice-Versa.
b. What kinds of problem arise, if TCP is implemented over wireless network?
Explain.
6. Attempt any one part of the following: 10x1=10
21. Discuss the schemes of mobile transaction management. List out various issues
concerned to transaction management.
b. What do you mean by CODA ?le system and also explain the clients in CODA?
How Disconnected Operations are performed in CODA?
7. Attempt any one part of the following: 10x1=10
a. Discuss the WAP Architecture in detail? Write down the applications& principles of
WAP.
b. Name the main differences between Ad-hoc network & other network. What
advantages do ad-hoc networks offer? Explain in detail by giving suitable example.
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This post was last modified on 30 January 2020