Anna University Chennai 2007-2nd Year M.C.A Computer Aplications Middle Ware Technologies[ , Anna University] - Question Paper

MiddleWare Technologies
November/December 2007 ques. Paper
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PART-A (10X2=20 marks)
1. Enumerate the difference ranging from a Thin Client and a Fat Client? List its advantages.
2. What is Middleware? List its major classifications.
3. provide the software architecture of EJB.
4. elaborate the different transaction attributes available in EJB?
5. When should you adopt BMP and when you should use CMP?
6. What is the need of Remote and Home interface? What can’t it be in one?
7. What is the role of an interface in CORBA?
8. elaborate the similarities and differences ranging from RMI and CORBA?
9. What is marshaling by value?
10. What is assembly in .NET framework?

PART-B (5X16=80 marks)
11. (a) (i) discuss the architecture of MOM. How is it various from other kinds of middleware? (10)
(ii) Develop a simple e-commerce web database model which uses a middleware. (6)
(OR)
(b) (i) provide the syntax and semantics of RPC mechanism in detail. State the producer consumer issue. Write the procedure for producer consumer issue and discuss how it is supported by RPC in distributed environment. (16).
12. (a) Write the benefits given by EJB for application developers. With a neat sketch explains the EJB architecture in details including all its modules. (16)
(OR)
(b) (i) discuss the basic roles in an EJB environment in detail. (10)
(ii) Write the steps to deploy a new EJB module. (6)
.
13.(a) (i) discuss the concept of session bean and its kinds in detail. (8)
(ii) define the components of entity bean. What makes Entity Beans various from Session Beans? discuss (8)
(OR)
(b) Consider the Inventory application which supports 3 basic use cases:
(i) Add Items to the Stock
(ii) Receive Items
(iii) problem Items
The application workflow begins with adding item info to the stock. Then it allows enter goods receiving and issuing info. All those updated info are stored in the inbuilt database. Implement the above application using EJB by considering the necessary problems invoked. (16).
14. (a) (i) discuss the architecture of CORBA in detail. (8)
(ii) Write the IDL program for the “hello world” program (8)
(OR)
(b) (i) define the components involved in CORBA object model in detail. (8)
(ii) Write a CORBA IDL specification, Stack class, Server main program and Client main program for the provided description.
“The client sends the server an integer value to be stored in a stack”..
15. (a) discuss the interfaces in COM. Write the steps to create a COM object. (16)
(OR)
(b) (i) Compare the features of DCOM and CORBA. (8)
(ii) discuss .NET framework Remoting Architecture. (8)

Earning:   Approval pending.