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2003 Course Mobile Computing (Elective I)

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Total No. of Questions :12] [Total No. of Pages : 2 P1124 [3864] - 420 B.E. - (IT) MOBILE COMPUTING (414445) (Elective - I) (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Assume suitable data, if necessary. SECTION - I Q1) a) Explain various standards used in mobile computing environment. [8] b) Explain various steps used during the design of voice application development. [8] OR Q2) a) Explain the significance of Core, Edge and Access Network. What are their functions? [8] b) Explain various types of mobilities used in mobile computing environment. [8] Q3) a) Describe the Bluetooth protocol stack in detail. [6] b) Explain how mobile IP works with appropriate diagram. [6] c) Explain the value added services of SMS. [6] OR Q4) a) Draw an architectural diagram of GSM and explain various elements used in it. [6] b) Explain the security mechanism used in GSM. [6] c) Explain Java Card in detail with appropriate diagram. [6] P.T.O. Q5) a) b) Q6) a) b) Explain the WAP protocol stack in detail. [8] What is the difference between GSM and GPRS? What are the network elements in GPRS that are different from GSM. [8] OR Explain the transmission plane and GPRS protocol stack. [8] Explain how Direct Sequence Spread Spectrum technology used in [8] CDMA. SECTION - II Q7) a) What are the advantages and disadvantages of WLAN? Under what situation is WLAN desirable over LAN? [8] b) What are the design constraints for the application of hand held devices? [8] OR Q8) a) b) Q9) a) b) What is number portability? Explain the three phases used in number portability. [8] Explain SS#7 protocol stack in detail. [8] Describe the Palm OS architecture. [8] Explain the functions of different layers in Symbian OS architecture. [8] OR Q10)a) What is CDC and CDLC in J2ME? [8] Explain the three prong approach used in Java. [8] Explain the different flavors of Windows CE. [6] b) Compare SIP an H.323. [6] c) Explain various attacks on static assets. [6] b) Q11)a) OR Q12)a) What are the different components of Information Security. [6] b) Explain any two real time protocols. [6] c) Explain various attacks on dynamic assets. [6] [3864]-420 jjj 2

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