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Enterprise JavaBeans Technology Fundamentals Quiz

Technology Fundamentals Quiz

By
June 2000

What do you know about the Enterprise JavaBeans (EJB) API? Try this quiz and see what you learned from the EJB Technology Fundamentals Short Course.

Choose one answer for each question, then click Submit to see how you scored.

1. What does the EJB specification architecture define?

A.	Transactional components
B.	Distributed object components
C.	Server-side components
D.	All of the above

2. What executes EJB components?

3. What do enterprise beans use to communicate with the EJB container to get runtime context information?

A.	The `javax.ejb.EJBContext` provided by the container
B.	A JNDI ENC context
C.	A `javax.ejb.EJBHome` object provided by the container
D.	A `javax.ejb.EJBMetaData` object provided by the container

4. Through what interface does an application create, find, and remove enterprise beans?

5. What type of enterprise bean is used to embody business objects?

6. What type of enterprise bean is used to embody application processing state information?

7. What interface must the enterprise bean implement so that an application can invoke its operations?

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

A.	Immediately prior to the execution of its `ejbCreate()` method
B.	Immediately after the execution of its `ejbCreate()` method
C.	After the CMP bean's data has been committed to the underlying persistent datastore
D.	During the execution of its `ejbPostCreate()` method

9. What distinguishes a bean-managed persistent (BMP) enterprise bean from a container-managed persistent (CMP) enterprise bean?

A.	A BMP bean must implement the `ejbLoad()` and `ejbStore()` methods
B.	A BMP bean can implement persistence to custom datastores such as legacy systems
C.	A BMP bean is responsible for managing its own persistence to a persistent datastore
D.	All of the above

10. What is a deployment descriptor?

A.	An XML file format used by the container to learn about the attributes of a bean, such as transactional characteristics and access control
B.	A method for transporting enterprise beans back and forth between systems
C.	An XML file used by enterprise bean clients to learn about the attributes of a bean, such as access control and transactional characteristics.
D.	A format for bundling enterprise beans for delivery to customers


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