Pondicherry University 2009 M.C.A Middleware Technology, - Question Paper

Or

2.    'Ta) Write notes on peer to peer communication.

MCA 752

M C A. DEGREE EXAMINATION, NOVEMBER 2009.

(10)

(b) Develop a simple -commerce web database model which uses a middleware.    (5)

3.    Draw the EJB architecture and explain the functions of various entities involved.    (15)

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4.    (a) How does an EJB container provide support for transactions and persistence?    (10)

(b) Write the stepe to deploy a new EJB module.

MCA 752

M C A. DEGREE EXAMINATION, NOVEMBER 2009.

(5)

UNIT III

5.    (a) Explain the concept of BesBion bean and its types in detail.    (8)

(b) Describe the components of entity bean. What makes entity beans different from session beans? Explain.    (7)

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6.    Consider and E-Commerce applications of Shooping cart for purchasing things over the web. Implement the above applications using EJB by considering the necessary issues involved.    (15)

UNIT IV

7.    (a) Explain the architecture of CORBA in detail.

MCA 752

M C A. DEGREE EXAMINATION, NOVEMBER 2009.

(8)

(b) Write a CORBA IDL specification, stack cia&s, server main program and client main program for the given description. Hie dientsend the server an integer value to be stored in a stack'.    (7)

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8.    (a) Enlist the services offered by CORBA and explain its usage.    (8)

(b) How does CORBA provide support for network heterogeneity?    (7)

UNIT V

9.    . (a) Describe the object lifecycle in COM. (8)

Cb) Highlight the differences in COM and CORBA.    (7)

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10.^A    (a) How does Proxy and Stub are generated in remote aianHttiHtieB? Describe in detail how

-----Mtinn takes place with diagram.    (8)

(b) Draw the architecture of .NET and how does CLR execute the .NET source code? Explain the steps involved in it.    (7)

3    MCA.2S2