OCPJBCD Mock Exam – 2

1 . Can we use the annotation @PrePassivate for more than one method in a bean?

1. Yes
2. No

2 . What should be the return type of the method using @PrePassivate?

1. Object
2. void
3. String
4. boolean

3 . Which of the following are correct statements about @PrePassivate?

1. Method’s return value must not be void
2. Method cannot be private
3. The method must not be final
4. The method must not throw a checked exception
5. All of the above

4 . Which of the following callbacks are called during the passivattion and activation process?

1. @PostConstruct
2. @PostActivation
3. @PrePassive
4. @PostActivate

5 . Which of the following call backs are called for the stateful session bean?

1. Construction
2. Destruction
3. Activation
4. Passivation
5. All the above

6 . Which of the following call backs are supported for the stateless session bean?

1. post construction
2. pre destroy
3. passivation
4. activation
5. All of the above

7 . Which of the following statements are true about interceptors?

1. Interceptor can not invoke JMS
2. Interceptor class must have a public no-arg constructor
3. Interceptor instance can not be created when the Bean instance is created
4. Interceptor can invoke JNDI

8 . Extended persistence context support is only for interceptors associated with stateful session beans?

1. False
2. True

9 . Which of the following annotations are related to configuring the interceptors?

1. @AroundInvoke
2. @ExcludeClassInterceptors
3. @ExcludeDefaultInterceptors
4. @Interceptors
5. All of the above

10 . Which of the following are the valid statements for @AroundInvoke?

1. AroundInvoke method cannot be a business method of the bean
2. AroundInvoke method can invoke any resource tha a business method can access
3. AroundInvoke method can be declared as final
4. AroundInvoke method cannot be static

Answers

1 : 2 is correct.
Explanation: Only one method in the bean class can be annotated with @PrePassivate. If you annotate more than one method with this annotations, the EJB will not deploy.

2 : 2 is correct.
Explanation: The return type of the method must be void.

3 : 3 & 4 is correct.
Explanation:
The following are the restrictions for the @PrePassivate method:
– The return type of the method must be void.
– The method must not throw a checked exception.
– The method may be public, protected, package private or private.
– The method must not be static.
– The method must not be final.
– This annotation does not have any attributes.

4 : 3 & 4 is correct.

5 : 5 is correct.

6 : 1 & 2 is correct.

7 : 2 & 4 is correct.

8 : 2 is correct.

9 : 5 is correct.

10 : 1,2 & 4 is correct.