pass4side 1D0-442 DEMO
pass4side 1D0-442 DEMO
CIW ENTERPRISE SPECIALIST
Q&A DEMO
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1. An entity beans class contains the following method signature:
public Integer ejbCreate (int partNum, String partDescription,
float partCost, String partSupplier) throws CreateException
Which statement is true of the beans ejbCreate() method?
A. An ejbPostCreate() method with the same number and types of parameters must be present in the beans remote
interface.
B. An ejbPostCreate() method with the same method signature must be present in the beans home interface.
C. An ejbPostCreate() method with the same number and types of parameters must be present in the beans class.
D. An ejbPostCreate() method with the same method signature must be present in the beans class.
Answer: C
2. Which choice defines the term isolation when used to describe the properties of a transaction?
A. Isolation guarantees that a transaction will either result in a new valid system, or the system will be restored to its
original state.
B. Isolation guarantees that a committed transaction will persist despite any type of system failure.
C. Isolation guarantees that logically related operations are dealt with as a single unit.
D. Isolation guarantees that transactions running at the same time will not have access to each others partial results.
Answer: D
3. An EJB client invokes a create() method. An EJB container instantiates an enterprise bean as the result of this method
call. The bean is then held in a pool awaiting a method invocation. To which type of enterprise bean does this process
refer?
A. BMP entity bean
B. CMP entity bean
C. Stateless session bean
D. Stateful session bean
Answer: C
4. A finder method in an entity bean is written to find more than one primary key. Which statement correctly describes
the invocation of this type of ejbFind…() method?
A. When a client calls a multiple row finder method, the home object allocates a bean instance and invokes the
corresponding ejbFind…() method. The home object instantiates a remote object for each primary key, with a collection
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of remote references returned to the client.
B. When a client calls a multiple row finder method, the home object allocates a bean instance and invokes the
corresponding ejbFind…() method. The home object instantiates a collection of remote objects for each primary key, with
individual remote references returned to the client.
C. When a client calls a multiple row finder method, the remote object invokes the corresponding ejbFind…() method.
The remote object then returns a collection of remote references to the client.
D. When a client calls a multiple row finder method, the home object allocates a bean instance and invokes the
corresponding ejbFind…() method. The home object instantiates a collection of primary key references and returns them
to the client.
Answer:A
5. The ejbRemove() method for an enterprise bean contains the following line of code:
prepStmt = dbConn.prepareStatement (”DELETE
FROM MyTable
WHERE MyKey = ?”);
What type of enterprise bean might this be?
A. Stateful session bean
B. BMP entity bean
C. CMP entity bean
D. Stateless session bean
Answer: ABD
6. Which statement correctly describes CMP entity beans and finder methods?
A. The beans class should contain empty ejbFind() methods with corresponding find() methods defined in the remote
interface.
B. The beans class should not contain ejbFind() methods; empty find() methods are defined in the home interface.
C. The beans class should not contain ejbFind() methods; empty find() methods are defined in the remote interface.
D. The beans class should contain empty ejbFind() methods with corresponding find() methods defined in the home
interface.
Answer: B
7. Which client application could benefit from the use of a callback object?
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A. A Java Micro Edition application that notifies the user of a hand-held computer when traffic conditions have
improved along a given freeway
B. A Java applet that allows users to send an e-mail message to the quality control department
C. A Java application used by police officers in the field to retrieve vehicle registration information from a remote
database by supplying a complete or partial license plate number
D. A Java applet that retrieves a map image when given a street address
Answer:A
8. Which statement correctly describes the EJBContext interface?
A. The EJBContext interface defines methods that allow clients to find, create and remove enterprise beans.
B. The EJBContext interface defines methods that allow clients to ascertain information about run-time status for
enterprise beans.
C. The EJBContext interface defines methods that allow clients to obtain metadata for enterprise beans.
D. The EJBContext interface defines methods that allow clients to obtain network references to enterprise beans.
Answer: B
9. Which type of factory object returns references to objects that reside within the same process as the factory object?
A. Out-process
B. Generic
C. Specific
D. In-process
Answer: D
10. Which statement correctly describes the EJBHome interface?
A. The EJBHome interface is extended by all home interfaces, which provide methods to create, find and remove
enterprise beans.
B. The EJBHome interface is extended by all home interfaces, which provide a clients view of an enterprise bean.
C. The EJBHome interface is extended by all home interfaces and is the common superinterface for the SessionBean and
EntityBean interfaces.
D. The EJBHome interface is extended by all home interfaces, which the container uses to inform enterprise beans about
life cycle events.
Answer:A
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