Which of the following is an advantage of using multi-tiered, distributed architectures?

In the context of threE. tiered (or n-tiered) distributed architectures, scalability refers to which of
the following?

Which statement correctly describes the functionality of an enterprise bean’s home object?

Which statement correctly describes the functionality of an EJB (or remote) object?

Which statement correctly describes the EJBObject interface?

Consider the following steps involved in the creation of an entity bean:
1 .An entity bean returns the primary key of the record to the home object.
2.Any parameters defined in the create() method are passed from the home object to the beans
ejbCreate() method.
3.The client invokes business methods against the entity bean instance.
4.The home object allocates an entity bean instance from the containers bean pool.
In which order will these steps occur?

Which choice defines the term consistency when used to describe the properties of a transaction?

Which statement is true regarding the ejbLoad() method when invoked for an entity bean that is
not linked with an EJB object?

Consider the following steps involved in the creation of an entity bean:
1 .An entity bean instance inserts a record into a database.
2.A reference to the EJB object is returned to the client by the home object.
3.An EJB container creates a remote object for an entity bean instance, linking it with the primary
key.
4.The home object calls the ejbPostCreate() method on the entity bean instance.
In which order will these steps occur?

Consider the following IDL definition:
module accounts
{
interface Checking
{
attribute float balance;
void withdraw (in float amount);
};

};
How is the balance attribute mapped to Java in the client stub?