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Posted By: Ramya Member Level: Silver Posted Date: 04 Nov 2007
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2007 Anna University M.C.A Middleware Technologies Question paper
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M.C.A DEGREE EXAMINATION,MAY/JUNE 2007
Fourth Semester
MC 1754-MIDDLEWARE TECNOLOGIES
(Regulation 2005)
Time:Three hours Maximum: 100 marks
Answer ALL questions.
PART A-(10 x 2 = 20 marks)
1. Enumerate the difference between general and service specific middleware.
2. Draw the diagram that depicts the building block of client server.
3. State the roles of EJB in eco system.
4. When do you Use EJB?
5. Enumerate the difference between CMP and BMP.
6. List any four exceptions raised in EJB.
7. What is the role of IDL and IDL complir in distributed system?
8. CORBA ORB is a self describing system-Justify.
9. Compare the functionalities of CORBA and DCOM.
10. List the roles of .NET base class libraries.
PART B-(5 x 16 = 80 marks)
11. (a) (i) Explain the working mechanism of MOM.Stste the difference
between RPC and MOM. (10)
(ii) Illustrate the three tier web server model and explain the sequence
of operations performed in the server side of the model. (6)
Or
(b) How is RPC implemented in client server environment?Explain in
detail the various issues involved while implementing with diagram. (16)
12. (a) (i) With a neat sketch explain the EJB architecture specifying both
client side and server side environment. (8)
(ii) Decsribe the sequence of steps for deploying J2EE based EJB
applications. (8)
Or
(b) (i) Describe the functions of different types of client views available in
EJB. (6)
(ii) Explain the main steps employed for server-side and client side
EJB development in detail. (10)
13. (a) (i) Compare and contrast stateful session beans with stateless session
beans. (6)
(ii) Explain the life cycle of entity bean in detail. (10)
Or
(b) Consider an E-commerec applications of “shopping cart”for purchasing
Things over the web.Implement the above application using EJB by
Considering the necessary issues involved. (16)
14. (a) (i) Explain the need and technologies used to implement an
distributed system in detail. (8)
(ii) Difference between dynamic invocation interface and static
invocation interface. (3)
(iii) How programmers access ORB functionality from their
programming languages?How to map the following OMG IDL into
C,C++ languages?
//OMG IDL
Module first
{ Interface foo
{
Void operation(inout long param)
raises(USER_EXCEPTION)
};
};
Or
(b) (i) Discuss the issues involved in CORBA object model in detail. (8)
(ii) Write a CORBA client application to say “hello” and explain how
an ORB object is created and accessed to invoke the specified
operation in your coding. (8)
15. (a) How do you implement interfaces in COM?Explain the concept involved
in it with diagram and example. (16)
Or
(b) (i) How does proxy and stub are generated in remote communication?
Describe in detail how communication takes place with diagrm. (8)
(ii) Draw the architecture of .NET and how does CLR execute the .NET
source code?Explain the steps involved in it. (8)
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