MOBILE COMPUTING-OCTOBER-2011

SIXTH SEMESTER DIPLOMA EXAMINATION IN ENGINEERING/TECHNOLOGY-OCTOBER,2011

PART-A

(Maximum marks:15)

v  Answer the following questions in one or two sentences:

1.What is intranet?

2.What is UDP?

3.Describe about MACA

4.what do you meant by GPRS?

5.Write about MOT

6.List the advantages of MEO

7.List the core protocols in bluetooth

8.Which are the three low power states that a Bluetooth can go to save battery power?

9.What is DHCP?

10.What do you meant by encapsulation of packets

PART-B

(Maximum marks:60)

(Answer one full question from each unit)

Unit-1

v  (a)Describe the applications of mobile computing.(6)

          (b)Explain the advantages and disadvantages of cellular systems.(6)

OR

v  (a)Explain different layers in TCP/IP.(12)

Unit-2

v  Discuss about GSM and its services(12)

         

OR

v  (a)Write down different handover scenarios.(8)

          (b)List the applications of satellite.(6)

UNIT-3

v  (a)Explain the cyclical repetition of data.(6)

          (b)Write short note digital audio broadcasting.(6)

OR

v  (a)Describe about DVB for high speed internet access.(6)

          (b)Discuss about geo satellite and its advantages.(6)

UNIT-4

v  (a)Explain the IEEE 802.11 system architecture.(12)

OR

v  (a)Describe frequency hopping in bluetooth.(6)

          (b)Explain about L2CAP channels.(6)

UNIT-5

v  (a)Explain the advantages and disadvanges of snooping TCP.(6)

          (b)Discuss about registration for correct forwarding of packets.(6)

OR

v  Explain in detail about IP-in-IP encapsulation and minimal encapsulation(12)

        

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