Set - 1

Question 41 :

What is commit ?

Answer :

The point in a transaction when all updates to any resources involved in the transaction are made permanent.


Question 42 :

What is component contract ?

Answer :

The contract between a J2EE component and its container. The contract includes life-cycle management of the component, a context interface that the instance uses to obtain various information and services from its container, and a list of services that every container must provide for its components.


Question 43 :

What is component-managed sign-on ?

Answer :

A mechanism whereby security information needed for signing on to a resource is provided by an application component.


Question 44 :

What is connector ?

Answer :

A standard extension mechanism for containers that provides connectivity to enterprise information systems. A connector is specific to an enterprise information system and consists of a resource adapter and application development tools for enterprise information system connectivity. The resource adapter is plugged in to a container through its support for system-level contracts defined in the Connector architecture.


Question 45 :

What is container-managed persistence ?

Answer :

The mechanism whereby data transfer between an entity bean's variables and a resource manager is managed by the entity bean's container.