A developer has created an application managed entity manager. Which statement is correct?

• A. A new persistence context begins when the entity manager is invoked in the context o\ transaction.
• B. A new persistence context begins when the entity manager is invoked in the context of a resource-local transaction.
• C. A new persistence context begins when a new JTA transaction begins.
• D. A new persistence context begins when the entity manager is created.

Consider a persistence application with the following orm.xml:

What will be the effect of the above orm.xml?

• A. The access type for allentities specified in this orm.xmlwill be changed to FIELD.
• B. The access type for only those entities defined in thisorm-xml for which access is notspecified will be defaulted to FIEL
• C. The access type for only those entities that have not explicitly specified @Access will be defaulted to field.
• D. The access type for all entities in the persistence unit will be changed to FIELD.

Given the following stateless session bean implementation classes:

Assuming no other transaction-related metadata, what are the transaction attributes on methodB, and methodC respectively?

• A. MANDATORY, MANDATORY, and MANDATORY
• B. REQUIRED, MANDATORY, andREQUIRES_NEW
• C. REQUIRED, REQUIRES_NEW, and REQUIRES_NEW
• D. MANDATORY, MANDATORY, <and REQUIRES__NEW

The developer wants to define a unidirectional relationship from the customer entity to the order entity and map this relationship using a foreign key mapping strategy.
Which one of the pairs of classes below correctly achieves this task?

• A. @Entity public class Customer {
  @Id int customerId;
  @OneToMany @JoinColumn (name = "CUST_ID") Set <Order> orders;
  . . .
  }
  @Entity public class order {
  @Id int orderId;
  . . .
  }
• B. @Entity public class Customer {
  @Id int customerId;
  @OneToMany Set <Order> orders;
  . . .
  }
  @Entity
  @JoinColumn (names = "CUST-ID", referencedColumnName = "customerId")
  public class order {
  @Id int order Id;
  . . .
  }
• C. @ Entity public class Customer {
  @Id int customerId;
  @OneToMany (JoinColumn = @JoinColumn (name = "CUST_ID"), table = ""ORDER) Set
  <Order> orders;
  . . .
  }
  @Entity public class order {
  @Id int orderId;
  . . .
  }
• D. @Entity public class Customer {
  @Id int customerId;
  @OneToMany (JoinColumn = @joinColumn (name = "CUST_ID") Set <Order> orders;
  . . .
  }
  @Entity public class order {
  @Id int orderId;
  . . .
  }