ICode No. 6408/N

FACULTY OF INFORMATICS

B.E. 4/4 (LT.) I-Semester (New) (Main) Examination,November/December, 2009

Subject : VLSI DESIGN

Time 3 Hours] [ Max. Marks: 75~;\ lnsth;;;;'-'

. o-X\'O _-_' __ :.. 01 ,.',"'/ ...•.. ,..

Note: Answer all questions from Part - A, Answer any, ~e"'questions from Pafl~C' \Ill. \ 0

.~ { liB R A R Y 1 0-PART - A ~ \ Jro· (25 Marks)

v " /. ~ .·G'- ,/. .• /1. (a) State Moore's law. ~f1dip;-MYd-;~&~~// 2

(b) Draw a CMOS logic circuit of a 2-input XOR gate:~_ :::;;..-•..•

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2. Consider an n-channel MOSFET with the following characteristic tox = 10nm fJ-n= 500 2

Cm2/v-sec (WJfJ =8 VTn= 0.75V. Calculate the device transconductance I3n·

3. Draw the CMOS structure for the following: 3(a) VIA (b) n MOSFET.

Define propagation delay of an inverter. 2

An inverter uses FETswith I3n = 2.1mA/V2 and I3p = 1.8mA/V2. The threshold voltages 3are given as VTn = 0.6V and VTp = - 0.65V and the power supply has a value ofVDD = 5V. The parasitic FET capacitance at the output node is estimated to beCFET = 70fF. Find the mid poi11:tvoltage. . .

Draw the structure of AND-OR Programmable Logic Array (PLA). 2

Write the verilog code for a D flip - flop. 3

An interconnect line is made from a material that has a resistivity of e = 4 fJ-D- em. The 2inter connect is 1200A thick (1A =10-8cm). The line has a width of 0.6fJ-m.Calculatethe sheet resistance Rsof the line, '

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PART - B

Code No. 6408/N1::;0 Marks)

An n-channel ?\IOS~:='-=- h?,."a mobility value of !-Ln=560cm2/\··5-=~o

gate oxide with a thi.::kr.e."."of tox =90 A. The gate voltage is giveL?5 ',' =-= == =-.~', ..and the threshold \'olt3~e~." :'.63V. Calculate the value of Cox/ kn' and 2.. -"~ssumethe FET has a chanr.el ~er.~:l'1of 0.25 !-Lmand a channel width of 2 f.llT,=.<.::·chtethe current ':":'.-==- - - - ..:--{, 'd . . .'-.-onSler :~-.-=.'.

1-:1:•.. ' \,C-i'-' -,,:;J"2,"; ~~-,oo6oor.oo:.:.. 5-::;-·":''::~'':'=OO'::= -" r5OO~:"':: r.:<= S .=;-.= ?r ..C• =·.~'>~r

C:~~::~~erive an expression for the low output voltage VOLpseudo n MOS inverter.(c) Draw a tristate inverter circuit and explain its functioning.

15. (a) Draw a 4: 1 MVR using nFET pass transistors and explain. Give verilog code forit.

(b) With a suitable diagram explain the function of a 4 bit ripple carry adder. 'IVritethe verilog code to construct the same.

16. (a) Considering logic gates as basic cells explain the creation of new cell using basicgates.

(b) Derive the expressions for the rise time and fall time calculation of a CMOSinverter.

(c) Draw the cross section and mask set of n Wells, n+ region and p+ region.

17. Write notes on the following:(a) Dynamic RAMs and SRAM arrays.(b) Inter connect modeling.(c) Testing of VLSI circuits.

9~JCode No. 6409 IN

B.E. 414 (IT) I-Semester (New) (Main) Examination,

November/December, 2009

Subject: WIRELESS AND MOBILE COMMUNICATIONS

5 Note: Ans,uer all questions from Part - A. Answer any five questions from Part - B.5

6. What is Co-channel interference? List Various strategies to reduce Co-channelinterference.

Code No. 6409/N

(50 Marks)

12. Explain with suitable diagrams the differences between ce;:--.:>~ ~.~~-:.:-~ :::-..1 cordless 10systems.

13. L\:;:->:r the operation of QPSK transmitter and receiver with neat diagrams. 10

14. (a) List ::-.e ~:::.ric·us;:,ropagation models.

(b) For a T,;\·o-R2~.·:-:-~del deI"ive the expression for the received power at a distance 7'd' from the IT2T.src,it::e::-.

15. What are the major differences ::-e:' ...·ee:--. TIJ:"<.-\. CD\IA and FDMA? Explain in 10detail about each multiple access '.'.-i:::___. i.eat cii2g-r2Ds.

16. Explain hO\\' tunneling 'works in gei.er2: 2nd es?eci::.12~:£~)::- mo":Ji:e IF using IF-in-IF, 10minimal and generic routing encapsulation respecti':el;:; Discuss the ad

1:antages and

disadvantages of these three methods.

17. Explainbife-edge diffraction model in detail with the help of suitable diagrams. . 10

18. Write a short notes on any two of the following:~,(a) Frequency Reuse

(b) Handoff mechanism

(c) MSK

FACULTY OF INFORMATICSR.E. IV/IV (IT) I SEMESTER (New) (Main) Examination, Nov.lDec., 2009

MIDDLEWARE TECHNOLOGIES

Answer all questions from Part - A. Answer any five questions fromPart- B.

PART- A (Marks: 25)3

1. How is SOAP different from traditional RPC ? (2)7

2. What is middleware ? Give examples of middleware services. (3)

.0 3. What are different types of servers? (2)

4. What are the types of protocols supported by httpservlet? (3).0

5. What is ejbPassivation and ejbActivation ?~nTin~~

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'6. What is the purpose of IDL ? &,1J/,. -....J'f)." (2)_,'I "" C'~:: \ -:)lO \;1 LIBRARY )<2..,

7. Compare DCOM and CORBA. t\ I~, (3).' /. T ~()....... ./. .. ./

til'J'd;- __ --tp...·LO 8."""-- What is ActionForm in struts Framework? " 'Pet. Hyde'ia~/ (3)--= .:=-

(2)

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11. Explain the following:(a) SOA(b) SOAP(c) WSDL

(4)(3)(3)

12. (a) Explain the servlet lifecycle in detail with the help of API.(b) What is struts Framework?

13. (a) Explain Entity beans in detail.(b) What are Callback Methods of session beans? Explain.

(a) Explain CORBA architecture and list responsibilities of ORB.(b) What is CORBA Naming Service?

(a) Explain dot NET framework.I:' What is Marshalling and Remoting ?

(5)(3)(2)

FACULTY OF INFORMATICSB.E.JVIIV (IT) I SEMESTER (New) (Main) Examination, Nov.lDec., 2009

DATA WAREHOUSING & DATA MINING (ELECTIVE - II)

Time: 3 Hours] [ Max. Marks: 75Note: Answer all questions from Part - A. Answer any five questions from

Part - B.

PART-ADefine data mining and data warehouse.

(Marks: 25)2M

Define the following OLAP operations:(a) Rollup (b) Drilldown

Define the following types of Data in Cluster Analysis:(a) Categorical variable (b) Ordinal variable

Define the following terms:(a) Binning (b) Histogram Analysis

Ds'.~IS fc:lc:.ing terms:(a) Time Series Data'(b) Web Mining(c) Multimedia Data Mining

Given two objects r:~presented by the tuples(22, 1, 42, 10) & (20, 0, 36, 8)Compute the Euclidean distance between the two objects.

PART- B (Marks: 50)11. (a) Explain data mining as a step in the process of knowledge discovery

with diagram. 5 M(b) Explain major issues in Data Mining. 5 M

12. (a) Write the differences between operational databases andwarehousing.

(b) Explain normalization techniques in Data Transformation.

data5M5M

P.T.O.

Code No. : 6413/N

13. (a) How does the NaIve Bayesian classification work? Explain. 5 M(b) Explain classifier accuracy. 5 M

14. (a) Explain about statistical-based outlier detection and deviation-basedoutlier detection. 6 M

(b) Given two objects representedby the tuples 4 M(23, 4, 56, 6) and (30,0,26, 10)Compute the Minkowski distance between the two objects,using P = 3.

15. (a) Explain how to construct spatial Data Cube and spatial OLAP. 5 M(b) Explain Spatial Associations and co-location patterns. 5 M

16. Explain how to mine the frequent items using Apriori Algorithm withexample. 10M

17. (a) Write Algorithms for K-means and K-medoids.(b) Discuss about density based methods.

5M5M

FACULTY OF INFORMATICS

B.E. 4/4 (IT) I-Semester (New) ,CII?,a,iE;?amination, November / December, 2009

Subject: Grid Computing (Elective - II)

Time: 3 Hours Max. Marks: 75

Note: Answer all questions of Part-A andanswer any Five questions from Part-B.

1. What are the differences between early grid activities and current gridactivities? 3

11. EX~lain about the grid computing toolkits and the frameworks.

12.a) Give complete description about grid architecture? Explain aI/layers? 8

.'-b) What are the major difference between grid computing and p2pcomputing? lr 2

13.a) Write complete details of the OGSI common management model (CMM)? 7

b) Give the technical details of OGSI specification 3

14.a) Explain client programming model in GT3. 7

b) Explain diagrammatical resource information provider service in GT3?, 3

b) Write the major grid application 6

16.a) Explain the grid XML architecture (GXA) vision? 5

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F)

Part - jl(j. {25 !\/ir:!irk'S)VVhat are the various stages in dhJlta! hnagl'j processing?

9. VVhatare the characteristics generelly used to d[st1ngu~shone colourfrom another? 3

Part - B (50 Marks)11.a) List and discuss the different neighbors of pjxe~ p at (x, y) co-ordinates. 5

b) \'\Ihat is hlstrogram filtering? Discuss how histogram equalization helpsin ima.ge enhancement.

12.a) Explain the process of spatial filtering with a nlElsk. 5\

b) Explain how smoothing (in spatial filtering) eliminates the nouse in theimage. 5

14.a) Describe the method of detecting a line (horizontal, vertical 445 degreesslant) with masks. .

b) Give the steps involved in the generation of a ~.hape.;.number descriptorof a boundary.

b) Give the expressions for the conversion of R & 8 colour model to HIScolour model.

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B. E. 4/4 (I.T.) I - Semester (Old) Examination, November 1 December 2009

Subject: VLSI Design

Note: Answer all questions from Part - A. Answer any five questions from Part-B.

PART - A (25 Marks)

Draw the CMOS logic gate for the function,f = a + b+ c. (3)Mention six different CMOS layers. (3)Find the device transductance I3n if the FET has a channel length of 0.25f.tmand a channel width of 2J"lm.Given the mobility f.tn=560 cm2/v-sec andCox = 6.9 X 10-7 F/cm2.

Consider an nFE~ that ha~ a channel width w ~J:tm, a channel lengthof L = 0.5f.tm and /s made In a process where:K = 180 J.tAN2VTn = 0.7 volt and VDD = 3.3V. Calculate the resisUmce Rn.

Write the verilog code for an AoI gate. Draw the corresponding circuitdiagram. (3)Write the operation of tristate primitives 'bufifo' and 'notifo' . og.(2)Draw the logic diagram of a 2x4 decoder. 'C"9(~~~·!!!""Draw the circuit of a 1T - DRAM cell and its function. , ~'b/,"" •••••.••••••~C'

Define sheet resistance Rs. '1.(!~/ (2)~Define Cross talk. \~: \ liB R A R \1;2»)S-

'\"'. $~':i.' /.PART - 8 (5x10=50 Marks) ',:~.G:~d:" --i.*

-: ,,8 ::x:iair t:-ie differe:l! steps involved in a CMOS fabrication~~()f, Hydera\:>~" I ~~ •.

(b) Clearly explain the terms "via" and 'action contact'. Draw the diagnnn. (5)

12.(a) Draw the volta~e transfer characteristics of a invertor circuit. Define noisemargins for high and low voltages, (5)

(b) Derive an expression for the midpoint voltage of an inverter circuit. Whatis a symmetrical inverter? (5)

13.(a) Explain the difficulty of driving a large capacitance load. (5)(b) How the delay can be minimized in an inverter cascade and derive an

expression for the number of stages for the design? (5)

14.(a) Draw the circuit of a 6T-SRAM cell and explain its function. I (5)(b) Draw the general structure of a SRAM array. Explain the different blocks

and circuits used to achieve the, functionality. . (5)

15.(a) Derive the RC model of an interconnect. (3)(b) Explain the principle of operation of a power supply distribution grid. (2)(c) Vvhat is dynamic switching power? (5)

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B.E. 4/4 (I.T.) I - Semester (Old) Examination, November / December 2009 J30-"" 20 \0

PART - A (25 Marks)1. S~S:C-I 2:; 32"am illustrating a cellular system. (2)2. V'Jrits ':Yic:cns of:

(a) r.b::: e statJ- (b) Base station (c) Mobile Switching center (3)3. What is Srial! S:a:e Fading? (2):4. Write a:l e:.'-..atC'" hr path loss forfree space model and explain briefly.(3)i5. Define:

(a) Power spsc:."ai :sr-sity of a random signal and(b) Half PO\'/s: banj"vidth

6. Give Nyquist cri:er:a i:- terns of impulse response for Inter symbolinterference and sketch t1e transfer function of a Nyquist pulse-shapingfilter at base band, (3)

7. Write salient features of Frequency Division iv1ultiple Access (FDMA) system.(2)8. Sketch a Time Division Multiple Access (TDMA) frame structure. (3)9. What are the requirements of mobile IP ? (3)10. Write two drawbacks of Indirect rcp. (2)

PART - B (5x1 0=50 Mark~i11.(a) Sketch a figure to illustrate the evolution of IEEE 802.11 wireless LANI standards, and_explain briefly. .! (b) Illustrate FreqrJency Reuse Concept in terms of Footprint, number ofr Duplex channels, cluster si~, and frequency Reuse Factor.

! 12.(a) draw a two-ray ground reflection model for radio wave propagation.

I, Write the equation for received power at a distance, d from the transmitter

for the two-ray ground reflection model and explain. (5),• (b) Define Fresnel-Kirchoof diffraction parameter, y. Describe Knife-edge

diffraction model for radio wave propagation with receiver located in

,• the shadowed region in terms of diffraction gain and y. (5)

13.(a) What is Linear Modulation? Explain Binary phase shift keying (BPSK) 0'

f receiver with carrier recovery circuits using a bock diagram. (5)i (b) Describe frequency hopped spread spectrum modulation technique indetail.(5)

i 14.(a) Explain forward COMA channel modulation process in detail. (5)(b) Sketch GSM System Architecture and explain briefly. (5)

15.(a) Describe actions required to be taken by Indirect TCP as soon as ahandover takes place.

(b) Vvrite a detailed note on Mobile Transport Layer.

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(5)

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t:Ji.leIIOHlf::jthe h.ltl1,;tlOiiti a FVleigli Agt:lil.

(b) List advantages and disadvantages of mobile TCP.,'-'j

(5)

t !Code No. 6272 I 0

Note: Answer all questions of Part-A andanswer any Five questions from Part-B.

PART·A (25 Marks)What is the difference between an interfac€,!and 2nabstract class?

What is CORBA implementation base? 3

What are the functions of client stub in RMI Architectu~ . \:)~~i~?ro'to- .- ••••••••. ".'

Compare CGI and Servlet. 6~~~/' 'i:'ii;\. LIBRARY ,./.

How RMI is differentfrom servlet? ' ,;:.\ r.:~\0 ",,'- /. %;/':\;, Q~-_ _ ..••~·i>".it.:

Compare stateful and stateless session beans."~Pet,-Hvdel~/Z"'-~.~~~,#.

10. With an example, explain about an exception and an error.

PART -8 (50 Marks) to{,./ 11.a) Explain with an example code creation of a thread in java.

b) Expla(n how java applets and applications can be debugged.

12.a) Explain 'different types of I/O streams with an example.

b) Write the required steps in JDBC to connect to a database from asimple java class. 5

13.a) Write a note on ORB lets. 5

b) Write a note on CORBA activation services. 5

14.a) Explain the life cycle of aservlet. 5

b) Differentiate between Generic and Http ServleL. 5

15.a) Explain the life cycle of states session bean. 4

b) Explain about the EJB frameworks. 6

16.a) What is CORBA initialization protocol. 3

b) What isORB? 2

c) Discuss in detail about bean cbmponent model. 5

17. Write short notes on :a) RMI 4b) HTTP 3c) Making applets live on the web ~

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FACULTY OF INFORMATICS

B.E.IV!IV Year (IT) I Semester (Main) Examination, November(Dece:mber 2008

VLSIDESIGN

Answerall questions of Part A.Answer any five questions from Part B.

2. What are the advantages and disadvantages of'a transmission gate. tn\ \nstit.ute ~\:\"3t8 _-- _ Of 1:<0:,...- - (90

. . . ----- 1)/ ,~3. DesIgn a CMOS lOgICgate for the functIOn f=a.b+a.b. 0 . . \?cz.. t

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f<f, .~_ oJ./ "30''- \,'Qn '-:---- '0'0.. d,pet, Hydet

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6, Differentiate between ripple-carry adder and carry look-ahead adder?

7. Define cross talk?'-

8. Discuss IDDQ Testing. /'/:"

9. Distinguish between carry-skip, carry-select and carry-save adders?

Part B - (Marks : 5ofl~El~'i'11. (a) Discuss general overview of logic design hierarchy with a necessary flow

graph.

(b) Draw the stick diagram and layout of (layer) NAND2gate.

12. (a) Define latch up. Why latch up occurs in CMOS circuits and explain theremedies of this latch up problem?

(b) Derive the expression for nFET current-voltage equation.

, :l B::-ief1yexplain how to determine FET capacitances. How is this going to affect-::-_=' sTT.-i-::::hingspeed in CMOS circuit? 5 B.

~ ==-=--;:.::~-:, .::~=- CC::"J:lst Veeilog HDL and VHDL. What is the difference between,=-.-..: ==-..::-.::_: =-=--=:::.-:': :=_:::d behavioral model? 5

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FACULTY OF INFORMATICS

J H.E. IV/N Year (IT) I Semester (Main) Examination, November/December 2008WIRELESS& MOBILECOMMUNICATIONS

Answer aU questions of Part A.Answer any five questions froni Part B.

Part A - (Marks: 25 )

1. Briefly explain about the concept of frequency reuse.

2. Explain about frequency division duplexing.

3. Calculate the Brewster angle for a wave impinging on ground having apermitting of Er == 4.

4. List any 3 outdoor propagation models.5. Find the maximum theoretical data rate that can be supported in a 30 kHz

channel for SNR = 20dB.

6. What are the advantages of constant envelope modulation?7. \Vhat are the lirnitations of wireless networking?8. What is common channel signalling? .

9. What are the problems with traditional TCP?--10. \Vhat is the need of agent advertisement?

IPart B - (Marks : 50),.-

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11. Explajn about various Handoff strategies and how priorities can be given toHandoffs. 10

12 (a) Explain about the ground reflection model. 5

(b) Explain about the radar cross section model. 5

13. Explain about direct - sequence and frequency hopping spread spectrumtechniques. 10

14. Describe the architecture of GSM. 10

IS. Explain in detail the different approaches of mobile TCP. 10

16. Discuss about the evolution of wireless networks 1017. Write short notes on:

(a) CDMA 6(b) BPSK 4 .

FACULTY OF INFORMATICS:::;:. r~,- I',· -;r;:;ar lIT! IS';:L:i.ester (l'\'Iain) Examination, November/December 2008

= ::..~:::=;-=- SER\'ER PROGRAMMING

Lectii:e-II)

6.

J 7.~ ;;.

-

What are the two ways of creating a thread and which one is preferable? 3

Vlhat is the difference between equals ( ) method in object class and string class? 2

-,~,-:.-:::.-= :~ ::-.::- ::::-:-::-:-e:'-.:e'ce:-xee:: s:2.:e~ess sess:o:: bean and stateful session bean?2

12. (a) Explain about exception hierarchy.

(b) Explain about the following exceptions.F) Arithmetic exceptiontii) NUllpointer Exception(iii) IOException(iv) Interrupted Exception.

13, (a) Explain life cycle of a Servlet.

(b) Explain life cycle of an Applet.

14, (a) Explain RMI API.

(b) Write an AWT application that interacts with JDBC.

15. (a) Explain about message Driven Beans.

(b) Differenciate between eMP and BMP.

16 (a) Explain about transaction .support in EJB Container.

(b) Explain the use a Java bean with example.

17, Write short notes on:

(a) CORBA - Style(b) Java 2D(c) Panel

FACULTY OF INFORMATICSRE. 4/4 (IT) - I Semester (Suppl.) Examination

May-2008VL S I DESIGN

Part - A (25 Marks)

1. Briefly explain about 'Karnaugh Map'. 2

2. What is meant by 'Bubble Pushing'. 3

3. Define 'Unit Transistor'. 2

4. Explain about 'Body-Bias Effects', 3

5. What is the purpose of 'Mirror Circuit'. 2

6. Dravv and explain 'VLSI design flow'. :3

7. Explain the concept of 'Multiplexor'. 2

8. Write and explain the function table for 'Full-adder'. 3

9. Briefly explain about 'Line Inductance'. 2

10. Differentiate betwJen 'Stuck-at-O' and 'Stuck-at-1' problems. 3

11. (a)

(b)

Part - B (50 marks)

What are the 'nFET pass characteristics', Explain.

Describe about 'Lithography' in detail.

12. Explain about the following:

(a) Layout Editors

, ~ Inverter Switching Characteristics

13. (a)

(b)

Draw and explain 'CMOS inverter circuit'.

Describe about 'Pseudo-nMOS'.

14. (a) Explain about the following.

(i) Binary Decoder

(ii) Priority Encoder

(b) Describe about various tyP6S of MUltipliers.

FACULTY OF INFORMATICSRE. 4/4 (I T) 1- Semester (Supplementary) Examination

May-2008WIRELESS AND MOBILE COMMUNICATIONS

3. Considering duplex channels, what are the alternatives forimplementation in wireless networks? 2

10. What are the mechanisms of time-out freezing, and its advantagesand disadvantages? 3

11. (a) What are the different motivations for a specialized MACfail'Jres ? 5

Code No. : 4271

12. Name the main elements of the GSM system architecture anddescribe their functions. 10

13. (a) Explain IEEE 802.11 system architecture, and protocolarchitecture. 6

14. (a) Explain dynamic host configuration protocol(DHCP) in mobileNetwork layer. 5

(b) Explain mobile IP network goals, entities and IP packetdelivery. 5

16. Explain Traditional TCP, Indirect TCP, and S,'iCoqr~2 TCP in mobiletransport layer, with a neat diagram for each. 10

17. (a)

(b)

Explain different mobile radio propagation mechanisms.

What are the modulation techniques for mobile radio?

Subject : Client Server Programming(Elective - II)

Note: Answer all questions of Part-A and answer any five questions from Part-B.

1.2.3.4.5.6.7.8.9.10.

What is the difference between an interface and an abstract class.What is importance of synchronization with respect to Multithreading.What are checked and unchecked exceptions? Give examples.What is Servlet ?What is purpose of making HTTP Servlet?What is !lOP?What is purpose of IDL ?What is event deligation model?What are life cycle methods of an Applet ?Distinguish between String and String Buffer Classes.

(2)(3)(3)(2)(2) 0

(2)(2)(3)(3)(3)

11. (a) Explain Servlet API. in d~tail.(b) Explain life cycle of a Servlet.

12. (a) Explain RMI flow. of execution in detail.(b) Explain how location transparency can be achieved.

(5)(5)

(6)(4)

14. (a) What are the types of JOSC drivers and explain each.(b) How do you save a Java Object in database?

(6)(4)

15. (a) Explain the importance of "Static" Keyword. (4)(b) What is the difference between abstract class and final class. (3)(c) What is the purpose of using interfaces? Where and how we use it? (3)

16. (a) What is CORBA ?(b) What is ORB?

. (c)·What is a heterogeneous distributed system?

(3)(3)(4)

17. (8) is(b) Explain MVC architecture.

1. What is Moore's Law.2. Draw the XNOR Gate.3. Give the structure ofMOS system.4. What is meant by Propagation Del(lY~5. What is the functionality of CMOS inverter.6. Describe about 'Tri-state inverter'.7. What is 'TG circuit'.8. Explain about 'Ripple-Carry Adders'.9. What is 'Crosstalk'.10. Briefly explain about' Clock Stabilization' .

Part - B (50 marks)

11. a) Explain the operation of a CMOS logic gate. 5b) Describe about layers used to create a MOSFET. 5

12. a) Describe about the FET RC Model. 5. b) Dl~c1.issabout 'Power Dissipation' . 5

13. a) Describe about 'Non-in,¥crtinI:rDomino Logic Gates'. 5b) Explain the functionality of 'Verilog cmos transmission gate'. 5

14. a) Differentiate between Static Latch and Dynamic Latch. 4,b) Describe about 'Carry Look-Ahead Adder'. 6

15. a) Differentiate between Moore and Mealy State Machines.b) Describe about CMOS testing.

16. a) What 'are the characteristi~s ofD Flip-Flop.b) Explain how to transform annFET to a pFET.

17. Explain about any two of the following.

a) BiCMOS Driversb) Priority Encoderc) SRAM i\rrays

H.E. IV/IV (IT) I Semester (Main) Examination, November 2007,

WIRELESS AND MOBILE COMMUNICATIONS

Answer all questions of Part A.Answer five questions from Part B.

2. Define modulation? What are the methods of analog and digital Data schemes? 3

3. Define cellular system? What are the advantages of cellular System? 2

4. How can MACA still fail in case of hidden/ exposed Terminals? 3.

5. What are the basic reasons for a hand over? 2

6. Define broadcasting? What are the basic transport mechanisms in DAB? 2

7. What are the fundamental differences between wired-networks and Ad-hocwireless networks related to routing? 3

8. Define HIPERLAN and what are its different phases? 3

9. Give two advantages and two disadvantages of WLAN's? 2

10. Give neat sketch on UMTS system architecture? 2

11. Define multiplexing and describe different types of Multiplexing techniques? 10

12. (a) Explain CSMA/CD specializat\on of IEEE 802.3 networks? 5

(b) Describe different schemes of TDMA? 5

13. (a) Describe system architecture of DECT? 5

(b) Explain tunneling and Encapsulation of mobile network layer? 5

14. (a) Explain GSM architecture with neat sketches? 5

(b) Explain traditional and classical TCP in mobile transport layer? 5

2 4271

15. Describe basics and different classes of satellite systems and applications? 10

16. (a) Explain IEEE 802.11 system architecture and protocol architecture? 7

(b) What are the three basic propagation mechanisms?

17. Write short notes on:

(a) Infrared vs. radio transmission.(b) Bluetooth WLAN technologies.

(c) Snooping TCP(d) Transmission/timed-out freezing.

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FACUL TV OF INFORMATICSB. E. 4/4 (IT) I Semester (Main) Examination, November, 2007

Subject: Client Server Programming(Elective - II)

".1.2.3.4.5.6.7.8.9,10.

What is inheritance /tj"" . """""':~Describe inter process communication ~ ~"a.~~~~~ut9 ()I'~

Distinguish between LPC and RPC J ~;.,,... "''.,,,~ '

What is RMI I :~(, ,~What is a semaphore "'§\ L,BRARY) 2.. \" ~ 'What are try I catch statements '" 6:," J~ •What is DDE_ q-1~''-'' -~ •What is a DEe thread '/let, Hyderabao .•1List any four server operating systemsWhat are ORBs

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/10

55

PART B - (Marks: 5 X 10 = 50)

11 Illustrate the folloWing concepts of java with an example(i) Exception handling (ii) Dynamic polymorphism

12(a) Write a Java program to explain the mUltithreading concept(b) Explain in detail the event class,es used in Java Applets

13(a) Explain CORBA initialization protocol(b) Distinguish between CORBA and RMI

14(a) Write the advantages of serve lets over(b) Explain sockets and socket interface

15(a) Explain the life~cycle methods of servelet(b) Explain different types of 1/0 streams,

16(a) Explain Java Beans and the architecture of EJB(b) Write a note on Active~X components

17 Write short notes on' " "(i) 3-Tier CGI(ii) CORBAIDL(Hi) HTTP

laEl:·~CECode No. 11405

FACULTY OF INFORMATICSB.E. 4/4 (IT) I Semester (Supplementary) Examination May / June 2007

1. Draw the circuit of inverter using CMOS Gates.2. / Discuss the overview of VLSI.

,~ What is the significance of Transmission Gate? Explain it with example.4. What are the merits of SICMOS circuits?5. What is Pseudo nMOS ?6. What are the overall dimensions of a 4-bit CMOS adder?7. What is Floor Planning and Routing?8. Discuss the roJe of synthesis in VLSI System.9. What do you understand by submicron technology?10. Construct a verilos module for Full Adder Circuit.

12. (a) Discuss S~jtching characteristics of CMOS Inverter.(b) Design the 'circuit and layout for CMOS Gate that implements

p =a (b.""c + c.d)

13. (a) Design a high speed CMOS logic Network.jPf Derive different J\FET Current Voltage Equations.

14. (a) Construct verilos module for 5-bit Shift Resister.(b) Explain Write~nd hold operations in SRAM.

15. (a) Design a 4-bit Multiplier. Realize the same with CMOS Gates.(b) Design 16-bit ROM Array.

16. (a) Design a tristate circuit that is in a high impedance state when the controlsignal T = 1 and acts as a non-inverting buffer when T = O.

(b) What are different design considerations.8t system level physical designstage.

17. (a) Explain different test Generation Methods.(b) What do you mean by pipelined system? Discuss its advantages.

FACULTY OF INFORMATICSBE 4/4 (IT) I-Semester (Suppl.) Examination

May / June - 2007

Subject : Wireless and Mobile Communications

Answer all questions of Part-A andany Five questions from Part-B

PART-A (25 marks)

Explain the concept of, frequency reuse in cellular systems.

4. Mention the names of some indoor propagation models. 2/'

5. Calculate the channel capacity if bandwidth = 4 KHz,

SIN = 30db. 2

. /l~gical expression.a) Eliminate useless svmhols r; - nrn+wtinnc Hn~'mit nroonctions from tbe f(\!Jowing CFGnnd r~nt""1>-~]f"rt ~'-, r"';-~Tr} "-"

14(a) Expl.

15(a) Expl:

16(a) Expl;

(b) Writ~

Il(a) Pn1wthe block diagram of basic cellular system and explain howcalls are made.

(b) \Vrite a brief note on reflection, diffraction and scatteringpropagation mechanisms.

~ (b) Draw the block diagram of DS-SS system and explain.

bile3

Code No. 11406

-- ::. '::xplain the features of TDMA technique.

(b) Discuss the features of CDMA digital 'cellular standard.

l5(a) Explain IP packet delivery mechanism in Mobile IP networks.

(b) Discuss the working DHCP.

l6(a) Explain co channel interference and its effect on system capacity.

(b) Write the features of Snooping TCP.

/

l7(a) Discuss the features ofCDMA.

(b) Discuss the architecture of GSM.

-/1~gica1 expression.ay useless E - jlTOduetlOns and unit

S -> ASB I€; B -> SbS IA I bb,o A -> aAS Ia

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S -> AB 13,_

FACULTY OF \NFORMAT\CS

subject Client Server programmingMax. Marks: 75

Note: Answer a\\ questions of .part- A and . Banswer any FIVE questions from Part - .

Write the difference between an applet and a serve let

What is OLEDistinguish between LPC and RPCWhat is RMI API.What is a semaphore'What are try Icatch statementsWhat is DCOM'Nhat is blob

11(a)(b)

PART B - (Marks: 5 X 10 = 50)

Write the steps in debugging java applets and applicationsDiscuss the advantages of -clientlserv.er.icomputing. What are the various

types of servers.

12(a) Discuss the architecture of RMI(b) Explain different types of I/O streams with examples

:":13(a) Explain hi detail the features of CORBA . Compare with Java RMI

(b) Discuss different methods for string classes with examples

14(a) Compare servelets and CGI(b) What is a socket? Explain client and server socket classes

- -15(a) Explain session and entity beans.

(b) Explain the functions of a 3-Tier CGI

16(a) Explain various methods of HTTP(b) Explain the features of Active-x' ,;

Write short notes on'- (i) Web Object (ii) CORBA-style (iii) JDSC