Study tips 1z0-861

Which statement that describes the functionality of optimistic locking is correct?

Which two can the developer select?

Which two statements are true?

Which query can be used to return the user that holds the book titled "Java"?

Which example of Java Persistence identity definitions is portable and correct assuming NO mapping descriptor is present?

Which represents the solution to this problem?

Which two are programming restrictions in the EJB 3.0 specification?

What is the name of the database table for Order objects?

Which expression in the query’s WHERE clause is correct?

Which statement about the @MappedSuperclass annotation is correct?