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1. Which is a valid PostConstruct method in a messagedriven bean class?
A. @PostConstruct
public boolean init() { return true }
B. @PostConstruct
private static void init() {}
C. @PostConstruct
private void init() {}
D. @PostConstruct
public static void init() {}
Answer:C

2. Given:
11. @Entity public class X {
12. @Id int id
13. Y y
14. }
A public class Y with NO Java Persistence annotations is defined in the same package.
Which statement is correct about these classes if NO other annotations and mapping descriptors are
provided?
A. Class Y must be serializable.
B. Class Y must be marked as an entity.
C. The entity X is not defined correctly.The field y must be marked as @Lob.
D. Class Y must be accessed by a persistence application through a public interface.
Answer:A