Download PTU B.Tech 2020 March ECE 7th and 8th Sem BTEC 919 Mobile Computing Question Paper

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Roll No. ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ Total No. of Pages : 02

Total No. of Questions : 09

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B.Tech.(ECE) (2012 to 2017 E-lll) (Sem.-7,8)

MOBILE COMPUTING

Subject Code : BTEC-919

M.Code : 71924

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students has to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students has to attempt any TWO questions.

SECTION-A

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1) Answer briefly :

1. Differentiate mobile computing and wireless Networking.
2. Name the teleservices provided by GSM.
3. Differentiate the functionalities of a foreign agent and home agent.
4. Define Handoff. What are its types?

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5. What is time-out freezing?
6. Define snooping TCP.
7. What is tunneling?
8. What happens to the standard TCP in case of disconnection?
9. State the functionality of WAP.

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10. List the applications of MANETS.

SECTION-B

2) Describe the architecture of mobile computing.

3) Illustrate packet delivery mechanism in Mobile IP network with a neat diagram.

4) What is encapsulation? Explain in detail the various encapsulation techniques in mobile IP.

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5) Discuss in detail Bluetooth technology.

6) Explain 802.11b standard.

SECTION-C

7) Discuss and compare the various mechanism used to improve the TCP performance in mobile networks.

8) With a neat diagram explain how packet delivery to and from a mobile node is transferred in mobile IP.

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9) Discuss in detail the components and interfaces of WAP architecture.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.