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Sun Certified Business Component Developer for J2EE 1.3 : 310-090 Exam

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Exam Number/Code: 310-090

Exam Name: Sun Certified Business Component Developer for J2EE 1.3

“Sun Certified Business Component Developer for J2EE 1.3″, also known as 310-090 exam, is a SUN certification. With the complete collection of questions and answers, Pass4sure has assembled to take you through 410 questions to your 310-090 Exam preparation. In the 310-090 exam resources, you will cover every field and category in SCBCD helping to ready you for your successful SUN Certification.

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1. Which two must be in an ejb-jar file, either by inclusion or reference? (Choose two.)
A. an enterprise archive (.ear) file
B. a deployment descriptor in the format defined by the EJB 2.0 specification
C. the class files for the classes that implement the home and remote interfaces
D. the class files for the interfaces and superinterfaces used by the bean, except J2SE or J2EE interfaces
E. the class files for the stub classes of the EJBHome andEJBObject interfaces, if remote interfaces are deployed
for the bean
Answer: B D

2. Click the Exhibit button.

All beans involved use container-managed transactions and all methods are marked as Required. At runtime,
methodB is unable to communicate with its resource and calls the setRollbackOnly method. What is the result?
A. JMS message redelivery semantics will apply.
B. The rollback will propagate to the sender of the message.
C. The bean’s onMessage method will reattempt the sequence.
D. Transactions started by the onMessage method will always commit.
Answer: A

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3. Which transaction attribute may cause a javax.transaction.TransactionRequiredException to be thrown?
A. Required
B. Supports
C. Mandatory
D. RequiresNew
Answer: C

4. Which exception can be thrown by the findByPrimaryKey method of a remotely called entity bean using
container-managed persistence?
A. javax.ejb.EJBException
B. javax.ejb.DuplicateKeyException
C. javax.ejb.NoSuchEntityException
D. javax.ejb.ObjectNotFoundException
Answer: D

5. Which method can be found in BOTH the EJBHome and EJBLocalHome interface?
A. getHomeHandle()
B. getEJBMetaData()
C. remove(Handle handle)
D. remove(Object primaryKey)
Answer: D

6. Which is a Bean Provider’s security-related responsibility?
A. assigns principals to roles in the application server
B. declares the role-link element in the deployment descriptor
C. declares the security-role element in the deployment descriptor
D. declares the security-role-ref element in the deployment descriptor
Answer: D

7. Which two statements about a client’s reference to a session bean’s remote home interface are true? (Choose
two.)
A. The reference can be passed as a method argument.
B. The reference provides the client with the IP address of the bean instance.
C. The reference provides the client with access to at least one create method.
D. A new home reference must be obtained for each new reference to a remote component interface.
Answer: A C

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