A company is deploying a real-time Java EE purchase order processing system. This system will
use an external application to access a customer’s account status as part of the purchase order
approval process. This external application is deployed on the same hardware as the purchase
order processing system, but it is not written in the Java programming language. Which
technology should be used to retrieve the account status from the external system?
A.
A JMS topic
B.
A JMS queue
C.
A synchronous web service
D.
An asynchronous web service