8/2/2019 Bt0074 Unit 11 Faqs

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Frequently Asked Questions

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Subject Name: OOPS with Java Subject Code: BT0074

Unit 11: RMI, CORBA and Java BeansBalasubramani R

Assistant ProfessorDept. of IT

Q1: What is RMI?

A1: The Remote Method Invocation (RMI) allows objects in different hosts to send and receive

messages. The method calls approach used by RMI is much easier to use. RMI allows

objects in different JVMs belonging to different hosts to send and receive messages.

Q2: What is a Remote Registry Server?

A2: A Remote Registry Server is a service that runs on a server and helps the objects on other

hosts to remotely access its registered objects. The registry service maintains a database

of all the named remote objects.

Q3: What is CORBA?

A3: CORBA stands for Common Object Request Broker Architecture. CORBA is a distributed

computing technology where the participating objects need not only be written in Java.

Q4: What is Java IDL?

A4: Java IDL (Interface Definition Language) enables objects to interact regardless of whether

theyre written in the Java programming language or other languages such as C, C++,

COBOL or others. Java IDL is based on CORBA, an industry-standard distributed object

model.

Q5: What are Java Beans?

A5: Java Beans is the software component architecture for Java. It allows constructing

applications efficiently by configuring and connecting components called Beans. The

Beans need to be written and tested with a rich set of mechanisms for interaction between

objects, along with common actions that most objects will need to support such as

persistence and event handling.