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Which of the following statements is not correct for an Enterprise Java Bean?

1. Entity beans model business data
2. Session beans model business processes
3. Message beans send synchronous messages
4. None of the above <br>

✅ Correct Answer: 3

Where are the EJB classes utilized by applications retained?

1. Within the javax.ejb package.
2. Within the javax.ejb package.
3. Within the Javascript package.
4. Within the rava.xml package.

✅ Correct Answer: 1

The _______ is the most common exception class.

1. EJBException
2. BeanException
3. NullPointerException
4. RuntimeException

✅ Correct Answer: 1

The _______ is the most common exception class.

1. EJBException
2. BeanException
3. NullPointerException
4. RuntimeException

✅ Correct Answer: 1

The _______ file is an XML file used to describe the properties of a bean.

1. Application archive
2. Bean JAR✖
3. Deployment Descriptor
4. XML Property

✅ Correct Answer: 3

______ is not a tag used in an XML bean archive to define a primitive type.

1. <byte>
2. <int>
3. <double>
4. <object>

✅ Correct Answer: 4

How many types of enterprise bean in java?

1. 2
2. 3
3. 4
4. None of the above

✅ Correct Answer: 2

________ encapsulates business logic.

1. Message Driven Bean
2. Entity Bean
3. Object Bean
4. Session Bean

✅ Correct Answer: 4

How many types of session bean?

1. 1
2. 2
3. 3
4. 4

✅ Correct Answer: 3

A Stateless session bean is a business object that doesn't maintain the conversational state with the client.

1. TRUE
2. FALSE
3. Can be true or false
4. Can not say

✅ Correct Answer: 1

______ is a messaging service to create, send and receive messages asynchronously.

1. RMS
2. JMS
3. GDS
4. KAD

✅ Correct Answer: 2

What are the advantages of JMS?

1. Asynchronous
2. Reliable
3. Both A and B
4. None of the above

✅ Correct Answer: 3

In ___________, one message is delivered to one receiver only.

1. CTP Model
2. ATP Model
3. ZTP Model
4. PTP Model

✅ Correct Answer: 4

In which model, one message is delivered to all subscribers?

1. Publisher model
2. Subscriber model
3. Both A and B
4. None of the above

✅ Correct Answer: 3

Message Driven Bean (MDB) encapsulates business logic. It is invoked by passing the message. It is like JMS receiver.

1. RUE
2. FALSE
3. Can be true or false
4. Can not say

✅ Correct Answer: 1

Which of the following annotation is used to specify or inject a dependency as ejb instance into another ejb?

1. javax.ejb.Stateless
2. javax.ejb.Stateful
3. javax.ejb.MessageDrivenBean
4. javax.ejb.EJB

✅ Correct Answer: 4

The EJB specification architecture does NOT define

1. transactional components
2. client side security and encryption
3. distributed object components
4. server-side components

✅ Correct Answer: 2

Which of the following is true?

1. Preserving of any state across method calls does not performed by Stateless session beans
2. Multiple users can access Stateful session beans at the same time
3. Both are correct
4. None

✅ Correct Answer: 1

. Which EJB container must provide an implementation of Java Naming and Directory Interface (JNDI) API to provide naming services for EJB clients and components?

1. Transaction support
2. Persistence support
3. Naming support
4. All mentioned above

✅ Correct Answer: 3

Which statement about session beans is true?

1. In both stateless and statefull session classes, the bean provider must write the method public void remove()
2. The method << remove >> in the component interface can be accessed only by the remote clients
3. The bean's handle must be provided by the client, in order to ask the EJBHome for removing a session bean
4. None of the above

✅ Correct Answer: 3

Which case of a session bean obtains the UserTransaction object via the EJBContext using the getUserTransaction() method in EJB transaction management?

1. Bean-managed transactions
2. Container-managed transactions
3. Both A & B
4. None of the above

✅ Correct Answer: 1

The Spring support classes facilitate building session beans

1. stateful session beans (SFSBs)
2. stateless session beans (SLSBs)
3. message-driven beans (MDBs)
4. All of the mentioned

✅ Correct Answer: 4

. What happens when you pass a serialized object as an argument or return value that doesn't exist either in the Client or the Server?

1. Nothing will happpen
2. An error will occur
3. A run time exception is produced
4. None of these

✅ Correct Answer: 3

An different programming language like C ,C++ etc.

1. 1,2
2. 1
3. 2
4. None of the above

✅ Correct Answer: 2

Abbreviate the term JMS?

1. Java Message Service
2. Java Monitor Service
3. Java Message Session
4. Java Monitor Session

✅ Correct Answer: 1

Session beans don't have

1. ejbCreate() method
2. ejbStore() method
3. ejbRemove() method
4. None

✅ Correct Answer: 1

An entity bean's local interface MUST extend the ________ interface.

1. javax.ejb.EJBLocalObject
2. javax.ejb.EJBObject
3. javax.ejb.RemoteObject
4. None of the above

✅ Correct Answer: 1

Which component does the Entity bean represent the persistent data stored in the database?

1. Server-side component
2. Client-side component
3. Server and client side component
4. None of the above

✅ Correct Answer: 1

Which server-side component is required to be deployed on the server?

1. EJB
2. RMI
3. Both A & B
4. None of the above

✅ Correct Answer: 1

To expose a service through RMI, you have to create the service interface that extends

1. java.rmi.Remote
2. . java.rmi.RemoteException
3. All of the mentioned
4. None of the above

✅ Correct Answer: 1

OpenEJB 3.1.1 supports

1. EJB 2.x components
2. EJB 3.0 and EJB 3.1 components
3. All of the mentioned
4. None of the mentioned

✅ Correct Answer: 3

From the following APIs, which API does NOT guarantees to be supported by EJB 2.0 containers?

1. JAXP
2. JNDI
3. JXTA
4. JDBC

✅ Correct Answer: 3

What is returned by the method ejbCreate() CMP bean?

1. Null
2. Primary Key class
3. Home Object
4. Remote Object

✅ Correct Answer: 1

What executes EJB components?

1. A web server
2. An application server
3. An EJB container
4. A database server

✅ Correct Answer: 3

How can a EJB pass it's reference to another EJB ? Which of the following is correct syntax for an Abstract class?

1. abstract double area() { }
2. abstract double area()
3. abstract double area();
4. abstract double area(); { }

✅ Correct Answer: 3

Choose different kinds of enterprise beans in EJB from following

1. Session beans
2. Entity beans
3. Message-driven beans
4. All of the above

✅ Correct Answer: 4

At what point, precisely, in the life-cycle is a container-managed entity bean considered created?

1. Immediately prior to the execution of its ejbCreate() method
2. Immediately after the execution of its ejbCreate() method
3. After the CMP bean's data has been committed to the underlying persistent datastore
4. During the execution of its ejbPostCreate() method

✅ Correct Answer: 2

Which middleware services are provided by EJB?

1. Security
2. Transaction Management
3. Both A & B
4. None of the above

✅ Correct Answer: 3

For remote objects Java passes objects:

1. By reference
2. By object copy
3. By producing a serialized copy
4. B and C are correct

✅ Correct Answer: 4

remove() method of the Entity bean?

1. Remove the row of table from the database
2. Remove the instance from pool
3. Delete the TABLE from the database
4. None of the above

✅ Correct Answer: 2

The _______ file is an XML file used to describe the properties of a bean.

1. Application archive
2. Bean JAR
3. Deployment Descriptor
4. XML Property

✅ Correct Answer: 3

EJB applications are deployed on a ____ compliant Application Server.

1. IEEE
2. J2EE
3. OSHA
4. SERI

✅ Correct Answer: 2

What is RMI-IIOP?

1. The Java Remote Operation Schedule.
2. Java Remote Method Invocation interface.
3. The Java Open Access Module.
4. The Java Express Services Daemon.

✅ Correct Answer: 2

What format is the deployment descriptor document in?

1. XML
2. doc
3. html
4. PDF

✅ Correct Answer: 1

What file format are all of the descriptor files in?

1. txt
2. HTML
3. PDF
4. XML

✅ Correct Answer: 4

EJB is a framework for _____

1. Java
2. C++
3. sap
4. windows

✅ Correct Answer: 1

If you wanted to control the WebLogic Server EJB’s configuration, what is one of the files you would use?

1. ejk.xml
2. erb-jub.xml
3. erp.txt
4. ejb-jar.xml

✅ Correct Answer: 4

What is another name for a deployment descriptor?

1. Caching between transactions.
2. Processing dual beans.
3. Processing dual-state beans.
4. Caching entire programs.

✅ Correct Answer: 1

What is concurrency control?

1. The control of a single operation in two different ways.
2. The control of single operations in different ways.
3. The control of a single operation in many different ways.
4. The ensuring that two operations within EJB are generated correctly.

✅ Correct Answer: 1

What is concurrency control?

1. The control of a single operation in two different ways.
2. The control of single operations in different ways.
3. The control of a single operation in many different ways.
4. The ensuring that two operations within EJB are generated correctly.

✅ Correct Answer: 1

What is CMC?

1. Container-managed concurrency.
2. Currently Managed Content
3. Counter-managed contingency.
4. Concurrent-managed content.

✅ Correct Answer: 1

In passivation, the opposite method from ejbPassivate() is _______.

1. ejbLoad()
2. ejbNew()
3. ejbActivate()
4. ejbCreate()

✅ Correct Answer: 3

In passivation, the opposite method from ejbPassivate() is _______.

1. ejbLoad()
2. ejbNew()
3. ejbActivate()
4. ejbCreate()

✅ Correct Answer: 3

Which of the following contains the EJB container that provides the services for the EJB component?

1. Component client.
2. EJB client.
3. EJB Server
4. Java client.

✅ Correct Answer: 3

What are ACID transactions responsible for?

1. Reliable database transactions.
2. Mobile-to-website interfacing.
3. Customer relations.
4. Data to processor interfacing.

✅ Correct Answer: 1

When injection is not available, what is the alternative?

1. Nothing is available
2. Bean interface.
3. Java interface.
4. Java Naming and Directory Interface

✅ Correct Answer: 4

What does it mean when business objects have a state?

1. They have many clients.
2. They have no clients.
3. They have only two clients.
4. They are limited to a single client at a time

✅ Correct Answer: 4

What bean represents real-world objects?

1. Entity bean.
2. Sessionless Bean.
3. Stateful Bean.
4. Singleton Session Bean.

✅ Correct Answer: 1

A class is serializable if a class's inheritance hierarchy implements _________.

1. Serializable and Externalizable
2. Serializable or Externalizable
3. Event and Listener
4. Persistence

✅ Correct Answer: 2

Do clients of EJB instantiate beans directly?

1. Yes.
2. No. They need a reference from the EJB container.
3. No. They need a reference from the Java container.
4. Yes, and they act immediately.

✅ Correct Answer: 2

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