JNTU BTech II Semester Examinations, MIDDLEWARE TECHNOLOGIES, Apr/May 2008


Apr/May 2008

(Information Technology)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks


1. What exactly is the meaning of Centralized computing and Distributed computing.

Explain the advantages and disadvantages of both the environments. [16]


2. (a) RMI directly integrates a distributed object model into the JAVA language.


(b) What is the relation between Class and Interface? Do the RMI Clients interact with interfaces or with Classes? Why. [10+6]


3. What is Event. How events are generated and received. [16]


4. (a) How do you define attributes. How do you read and store attributes. What

is the significance of attributes.

(b) What are the predefined attributes of C#. How do you develop custom attributes. [8+8]


5. (a) Define

i. Module

ii. Operation.

(b) How transparency is provided when CORBA program is run locally/remotely

(c) Explain Applet with its life cycle. [5+5+6]


6. (a) Discuss in brief about core CORBA interfaces.

(b) Write in detail about Trader Service. [8+8]


7. Give a brief notes on the interfaces and classes provided by java.beans package.



8. Discuss and explain different EJB deployment classes with their methods. [16]

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