NIELIT Question Paper : C Level Course Mobile Computing
Institute : National Institute of Electronics and Information Technology (nielit.gov.in)
Course : C Level Course
Subject Code/Name : CE1.5-R4/ Mobile Computing
Document Type : Old Question Paper
Location : India
Website : nielit.gov.in
Download Model/Sample Question Paper :
January 2012 : https://www.pdfquestion.in/uploads/nielit.in/7100-jan12CE15-R4.pdf
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JULY 2013 : https://www.pdfquestion.in/uploads/nielit.in/7100-jul13CE15-R4.pdf
January 2014 : https://www.pdfquestion.in/uploads/nielit.in/7100-jan14CE15-R4.pdf
July 2014 : https://www.pdfquestion.in/uploads/nielit.in/7100-jul14newCE15-R4.pdf
Mobile Computing Sample Paper :
CE1.5-R4:
NOTE:
Time: 3 Hours
Total Marks: 100
1. a) Explain Direct Sequence and Spread Spectrum technology.
b) Briefly explain the operation of mobile IP.
Related : NIELIT Question Paper B Level Course Information Storage & Management : www.pdfquestion.in/7099.html
c) Explain Ultra Wide Band (UWB) with bandwidth specifications. How is it an enhancement on GSM?
d) Discuss the limitations of GPRS.
e) What is WAP push? How is push different from pull?
f) In a Ethernet LAN CDMA-CD is used, where as in wireless LAN CDMA-CA is used. Why is CDMA-CA used in wireless LAN instead of CDMA-CD?
g) What is MANET? How is it different from cellular systems? (7×4)
2. a) What is IEEE 802-11 standards for WLAN? Explain different types of WLAN.
b) How does the mobile phone support Internet? How one application can used by mobile as well as computer using internet?
c) What is universal mobile telecommunication system? Explain the significance of SIM in mobile services. (6+6+6)
3. a) Explain data cache maintenance in mobile environment.
b) List and explain context types in context aware computing.
c) How is Wireless-ATM suitable for multimedia applications? (6+6+6)
4. a) Is routing significant for wireless network? Explain.
b) How is QOS provided in Bluetooth?
c) How do IEEE 802.11 solve the hidden terminal problem? (6+6+6)
5. a) What are the differences between AODV and standard distance vector algorithm? Why are extension needed?
b) Consider an adhoc network with fast moving nodes e. g, cars in a city. What problem arises even for the routing algorithms adopted to adhoc networks? What is the situation on highways? (10+8)
6. a) Why do we have the concept of mobile IP? In the context of mobile IP discuss the agent discovery, registry and tunneling?
b) Why does Traditional TCP not perform well in wireless network? Discuss different approaches which have been suggested for increasing TCP performance in wireless and mobile environment. (9+9)
7. a) What are the different components of information security?
b) Explain the concept of cell splitting and cell sectoring.
c) Why is CSMA/CD not suitable in WLAN’s? Explain with examples. (6+6+6)
July, 2012 :
1. a) “CSMA/CD protocol is not appropriate for mobile networking.” Comment.
b) Draw and Explain state transition diagram of Protocol mechanism for multiple access with collision avoidance.
c) What are the qualities of service issues when a mobile computing system uses combination of a fiber-optic channel and a satellite communication channel?
d) Why is DSDV not used in mobile adhoc network routing?
e) Explain SNOOP protocol in mobile networking.
f) Ad-hoc wireless networks do not need any infrastructure to work. What are the limitations of Ad-hoc wireless network?
g) How can energy be saved in mobile computing. (7×4)
2. a) By drawing suitable diagram, explain working of Dynamic Source Routing.
b) TCP performs poorly together with wireless links. Indirect TCP segments a TCP connection into a fixed part and a wireless part. What are the advantages and disadvantages of it? (10+8)
3. a) How is indexing on air useful in accessing mobile databases?
b) A mobile database is a database that can be connected by a mobile computing device over a mobile network. What are the requirements to have a mobile database? Name the tools supporting mobile database. (9+9)
4. a) Develop a scenario where mobile computing can be useful in tele-education.
b) Write down the Comparisons of Infrared and Radio wave communication.
c) What is Security Mobile Architecture and components of it? (6+4+8)
5. a) Compare MACAW and IEEE 802.11 protocols.
b) Symbian OS is used in Mobile phones as Operating System. What are the characteristics of Symbian OS?
c) What is the need for location privacy in mobile computing and how it is implemented? (6+6+6)