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1997 Course Object Oriented Components & Systems (Elective II)

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Total No. of Questions : 10] [Total No. of Pages : 2 P1461 [3764]-1097 B.E. (Computer) OBJECT ORIENTED COMPONENTS & SYSTEMS (1997 Course) (Elective - II) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates : 1) 2) Answer any 3 questions from each section. Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. SECTION - I Q1) a) Explain n-tier model in client/server architecture state its advantages and disadvantages. [6] b) What are JAR files? How to create JAR files? How to use them with JAR tools? [6] c) What are Java Beans? How are they useful? [4] Q2) a) What are the choices for data structure in Java? b) Compare runnable thread and extending thread. [4] [6] c) Compare object serialization with RMI in Java. [6] Q3) a) Explain the CORBA architecture with block labelled diagram. [10] b) Explain the role of CORBA in OMA reference model. [6] Q4) a) Explain interface repository & IDL object model. [8] b) Explain the CORBA services for managing resources in distributed object environment. [8] Q5) Write a note on : a) EJB. [18] b) ROC. c) Integration of web & distributed objects. P.T.O. SECTION - II Q6) a) What is a class factory in COM? Explain how the client creates a component using a class factory. [6] b) Explain the difference & similarities of COM library function Co Create Instance and Co Get Class Object. [6] c) What is IDispatch interface in COM? What is its significance. Q7) a) What are major advantages of distributed computing? [4] [8] b) What is Surrogats Process ? What are the benifits of running an Inprocess component in a DLL Surrogats? [8] Q8) a) Explain the Apartments in COM/DCOM. [8] b) Distinguish between Java Beans & EJB. What is session and Entity beans. [8] Q9) a) Explain Interface Repository & IDL object model. b) Define the term with respect to CORBA. i) Naming context. ii) [8] [8] IIOP/GIOP. Q10) Write short notes on any three : [18] a) Active X, OLE & COM. b) IDL tutorial. c) XML. d) Windows Registry. rrrr [3764]-1097 -2-

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