A customer is developing a custom application that involves a multistep provisioning process for a new account. There is a custom Java client…

C: Message Unit-of-Order is a WebLogic Server value-added feature that enables a stand-alone

message producer, or a group of producers acting as one, to group messages into a single unit with

respect to the processing order. This single unit is called a Unit-of-Order and requires that all

messages from that unit be processed sequentially in the order they were created.

D Transactions required for parallel processing.

Incorrect:

A: Many applications need an even more restricted notion of a group than provided by the Message

Unit-of-Order (UOO) feature. If this is the case for your applications, WebLogic JMS provides the

Unit-of-Work (UOW) Message Groups, which allows applications to send JMS messages, identifying

some of them as a group and allowing a JMS consumer to process them as such. For example, an JMS

producer can designate a set of messages that need to be delivered to a single client without

interruption, so that the messages can be processed as a unit. Further, the client will not be blocked

waiting for the completion of one unit when there is another unit that is already complete.

Note:

* WebLogic JMS defines two default connection factories, which you can look up using the following

JNDI names:

weblogic.jms.ConnectionFactory

weblogic.jms.XAConnectionFactory

Reference: Using Message Unit-of-Order