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Free 1z0-895: Java EE 6 Enterprise JavaBeans Developer Certified Expert Exam Questions and Answers
Last updated: March 29, 2025
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348-1z0-895: Java EE 6 Enterprise JavaBeans Developer Certified Expert
#Question
How does the use of EJB Timer Service benefit application scheduling?
A.
Increases complexity
B.
Reduces workload
C.
Provides robust scheduling capabilities
D.
Requires minimal configuration
Correct Answer:
C
The EJB Timer Service offers built-in capabilities for defining and managing scheduled events, simplifying the process of scheduling periodic tasks efficiently within an application.
#Question
Which method in EJB is responsible for returning the current user transaction?
A.
currentTransaction()
B.
getUserTransaction()
C.
beginTransaction()
D.
getTransactionContext()
Correct Answer:
B
The getUserTransaction() method is used in EJB applications to access the current user transaction, enabling manual transaction management when needed.
#Question
What principal role does the transaction management play in EJB?
A.
To ensure performance
B.
To maintain data integrity
C.
To manage resource allocation
D.
To optimize memory usage
Correct Answer:
B
Transaction management in EJB plays a critical role in ensuring data integrity, allowing multiple operations to be treated as a single logical unit of work, supporting rollback mechanisms for failures.
#Question
How can you enhance the security of an EJB application?
A.
By avoiding session beans
B.
By restricting bean pooling
C.
By using URL filtering
D.
By controlling method visibility
Correct Answer:
D
Controlling method visibility through secured interfaces and role-based access can greatly enhance the security posture of an EJB application, ensuring only authorized clients can access sensitive functionality.
#Question
Which design pattern is commonly used in EJB to manage asynchronous processes?
A.
Factory Pattern
B.
Observer Pattern
C.
Command Pattern
D.
Singleton Pattern
Correct Answer:
B
The Observer Pattern is useful in EJB applications for managing asynchronous notification and event handling, allowing decoupled event management systems.
#Question
In a JMS context, which annotation is used to define resource injection for queue connection factories?
A.
@JmsConnectionFactory
B.
@Queue
C.
@Inject
D.
@Resource
Correct Answer:
D
The @Resource annotation is commonly used to inject JMS connection factories for handling messaging in EJB applications efficiently.
#Question
How can you control visibility of EJB methods from other components?
A.
Use local interfaces
B.
Use annotations
C.
Use method overloading
D.
Use private access modifiers
Correct Answer:
A
Visibility of EJB methods can be controlled using local interfaces, allowing method definitions to restrict access to the current application context.
348-1z0-895: Java EE 6 Enterprise JavaBeans Developer Certified Expert
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