Question 1

Which statement characterizes stateless session beans?

Accepted Answer

A)  They allow the PostConstruct, PreDestroy, and PrePassivate life-cycle callbacks. 
B)  They require home interfaces. 
C)  When a client looks up a stateful session bean in the JNDI, the same bean is returned every time. 
D)  They are asynchronous message consumers. 
A)  They allow the PostConstruct, PreDestroy, and PrePassivate life-cycle callbacks. 
B)  They require home interfaces. 
C)  When a client looks up a stateful session bean in the JNDI, the same bean is returned every time. 
D)  They are asynchronous message consumers. A

Question 2

Which two of the following is responsible to creates ejb-jar files?
1) The bean provider.
2) The application assembler.
3) The deployer.
4) The system administrator.

Accepted Answer

A)  1 and 2 
B)  2 and 3 
C)  3 and 4 
D)  4 and 1 
A)  1 and 2 
B)  2 and 3 
C)  3 and 4 
D)  4 and 1 A

Question 3

Which statement about entities is correct?

Accepted Answer

A)  Entities must be annotated with the @Entity annotation. 
B)  Entities can be final classes. 
C)  Entities can have a single no-arg constructor with protected visibility. 
D)  Instance variables of an entity can have private, protected, public, or package visibility. 
A)  Entities must be annotated with the @Entity annotation. 
B)  Entities can be final classes. 
C)  Entities can have a single no-arg constructor with protected visibility. 
D)  Instance variables of an entity can have private, protected, public, or package visibility. C

Question 4

Which statement about session beans is true?

Accepted Answer

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

Question 5

Which services are provided to EJB components by the EJB container?

Accepted Answer

A)  Transaction support 
B)  Persistence support 
C)  Naming support 
D)  All mentioned above 
A)  Transaction support 
B)  Persistence support 
C)  Naming support 
D)  All mentioned above

Question 6

Which of the following is not an implicit object in JSP?
I. Request.
II. Session.
III. Vector.
IV. In.

Accepted Answer

A)  Both (I) and (II) above 
B)  Both (II) and (III) above 
C)  Both (I) and (III) above 
D)  Both (III) and (IV) above. 
A)  Both (I) and (II) above 
B)  Both (II) and (III) above 
C)  Both (I) and (III) above 
D)  Both (III) and (IV) above.

Question 7

EJB QL is a Query Language provided for navigation across a network of enterprise beans and dependent objects defined by means of container managed persistence.

Accepted Answer

A)  True 
B)  False 
C)  none 
D)  all 
A)  True 
B)  False 
C)  none 
D)  all

Question 8

A message driven bean is like statefull session bean that encapsulates the business logic and doesn't maintain state.

Accepted Answer

A)  True 
B)  False 
C)  none 
D)  all 
A)  True 
B)  False 
C)  none 
D)  all

Question 9

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

Accepted Answer

A)  Transaction support 
B)  Persistence support 
C)  Naming support 
D)  All mentioned above 
A)  Transaction support 
B)  Persistence support 
C)  Naming support 
D)  All mentioned above

Question 10

Which two of the following must be included in every ejb-jar file?
1) Stubs for the EJBHome and EJBObject interface.
2) The JAR Manifest file.
3) A deployment descriptor.
4) The JNDI context.
5) The EJB's home interface.

Accepted Answer

A)  1 and 3 
B)  2 and 5 
C)  3 and 5 
D)  4 and 2 
A)  1 and 3 
B)  2 and 5 
C)  3 and 5 
D)  4 and 2

Question 11

A session bean represents a multiple clients inside the Application Server.

Accepted Answer

A)  True 
B)  False 
C)  none 
D)  all 
A)  True 
B)  False 
C)  none 
D)  all

Question 12

Upon invoking getRollbackOnly() method by a business method in an entity bean, which transaction attribute settings will lead the ejb container to throw an exception?

Accepted Answer

A)  Required 
B)  RequiresNew 
C)  Never 
D)  Mandatory 
A)  Required 
B)  RequiresNew 
C)  Never 
D)  Mandatory

Question 13

JMS is mainly used to send and receive message from one application to another.

Accepted Answer

A)  True 
B)  False 
C)  none 
D)  all 
A)  True 
B)  False 
C)  none 
D)  all

Question 14

The EJB Transaction Attribute that ensures the method call that always takes place in a transaction, either client started or container started' are

Accepted Answer

A)  TX_SUPPORTS 
B)  TX_MANDATORY 
C)  TX_REQUIRED and TX_REQUIRES_NEW 
D)  Either A or B 
A)  TX_SUPPORTS 
B)  TX_MANDATORY 
C)  TX_REQUIRED and TX_REQUIRES_NEW 
D)  Either A or B

Question 15

EJB is a specification for J2EE server, not a product; Java beans may be a graphical component in IDE.

Accepted Answer

A)  True 
B)  False 
C)  none 
D)  all 
A)  True 
B)  False 
C)  none 
D)  all

Question 16

Which statements about a session bean class are true?

Accepted Answer

A)  It is a final class 
B)  Overloaded constructors are supported 
C)  Their business methods can be 'private' 
D)  The ejbCreate() method must not be a final method 
A)  It is a final class 
B)  Overloaded constructors are supported 
C)  Their business methods can be 'private' 
D)  The ejbCreate() method must not be a final method

Question 17

Abbreviate the term JMS?

Accepted Answer

A)  Java Message Service 
B)  Java Monitor Service 
C)  Java Message Session 
D)  Java Monitor Session 
A)  Java Message Service 
B)  Java Monitor Service 
C)  Java Message Session 
D)  Java Monitor Session

Question 18

Which session bean maintain their state between client invocations but are not required to maintain their state across server crashes or shutdowns?

Accepted Answer

A)  Stateful Session Bean 
B)  Stateless Session Bean 
C)  Singleton Session Bean 
D)  None of the above 
A)  Stateful Session Bean 
B)  Stateless Session Bean 
C)  Singleton Session Bean 
D)  None of the above

Question 19

A message-driven bean can have an instance of a MessageDrivenContext injected. Which method can be successfully invoked on this interface from a message-driven bean?

Accepted Answer

A)  getEJBHome 
B)  getCallerPrincipal () 
C)  isCallerInRole 
D)  getEJBLocalHome 
A)  getEJBHome 
B)  getCallerPrincipal () 
C)  isCallerInRole 
D)  getEJBLocalHome

Question 20

EJB system's performance tuning is the responsibility of

Accepted Answer

A)  Bean Provider 
B)  EJB Deployer 
C)  Application Assembler 
D)  Tool Vendor 
A)  Bean Provider 
B)  EJB Deployer 
C)  Application Assembler 
D)  Tool Vendor

Which statement characterizes stateless session beans?

Which two of the following is responsible to creates ejb-jar files? 1) The bean provider. 2) The application assembler. 3) The deployer. 4) The system administrator.

Which statement about entities is correct?

Which statement about session beans is true?

Which services are provided to EJB components by the EJB container?

Which of the following is not an implicit object in JSP? I. Request. II. Session. III. Vector. IV. In.

EJB QL is a Query Language provided for navigation across a network of enterprise beans and dependent objects defined by means of container managed persistence.

A message driven bean is like statefull session bean that encapsulates the business logic and doesn't maintain state.

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

Which two of the following must be included in every ejb-jar file? 1) Stubs for the EJBHome and EJBObject interface. 2) The JAR Manifest file. 3) A deployment descriptor. 4) The JNDI context. 5) The EJB's home interface.

A session bean represents a multiple clients inside the Application Server.

Upon invoking getRollbackOnly() method by a business method in an entity bean, which transaction attribute settings will lead the ejb container to throw an exception?

JMS is mainly used to send and receive message from one application to another.

The EJB Transaction Attribute that ensures the method call that always takes place in a transaction, either client started or container started' are

EJB is a specification for J2EE server, not a product; Java beans may be a graphical component in IDE.

Which statements about a session bean class are true?

Abbreviate the term JMS?

Which session bean maintain their state between client invocations but are not required to maintain their state across server crashes or shutdowns?

A message-driven bean can have an instance of a MessageDrivenContext injected. Which method can be successfully invoked on this interface from a message-driven bean?

EJB system's performance tuning is the responsibility of

Java Programming: HTTP Protocol, Scripting Tasks, and Data Access

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Java, Servlets, JSP and EJB

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Exam 6: JSP, EJB, and JMS

Which statement characterizes stateless session beans?

Which two of the following is responsible to creates ejb-jar files? 1) The bean provider. 2) The application assembler. 3) The deployer. 4) The system administrator.

Which statement about entities is correct?

Which statement about session beans is true?

Which services are provided to EJB components by the EJB container?

Which of the following is not an implicit object in JSP? I. Request. II. Session. III. Vector. IV. In.

EJB QL is a Query Language provided for navigation across a network of enterprise beans and dependent objects defined by means of container managed persistence.

A message driven bean is like statefull session bean that encapsulates the business logic and doesn't maintain state.

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

Which two of the following must be included in every ejb-jar file? 1) Stubs for the EJBHome and EJBObject interface. 2) The JAR Manifest file. 3) A deployment descriptor. 4) The JNDI context. 5) The EJB's home interface.

A session bean represents a multiple clients inside the Application Server.

Upon invoking getRollbackOnly() method by a business method in an entity bean, which transaction attribute settings will lead the ejb container to throw an exception?

JMS is mainly used to send and receive message from one application to another.

The EJB Transaction Attribute that ensures the method call that always takes place in a transaction, either client started or container started' are

EJB is a specification for J2EE server, not a product; Java beans may be a graphical component in IDE.

Which statements about a session bean class are true?

Abbreviate the term JMS?

Which session bean maintain their state between client invocations but are not required to maintain their state across server crashes or shutdowns?

A message-driven bean can have an instance of a MessageDrivenContext injected. Which method can be successfully invoked on this interface from a message-driven bean?

EJB system's performance tuning is the responsibility of

Java Programming: HTTP Protocol, Scripting Tasks, and Data Access

Servlets and Web Applications

Java Server Pages JSP and Java Script

Java, Servlets, JSP and EJB

EJB, JSP, and Corba

Java Web Development

EJB and Server-Side Components

Filters