IBM WebSphere Application Server Network Deployment V8.5 and V9.0, Core Administration — Question 19

An administrator notices that the Message Driven Beans (MDBs) are slow to complete, and decides to increase the "˜Maximum concurrent MDB invocations per endpoint'.
Which thread pool should be tuned to ensure it can run the maximum number of MDBs without waiting?

Answer options

• A. Default
• B. WebContainer
• C. SIBJMSRAThreadPool
• D. WMQJCAResourceAdapter

Correct answer: D

Explanation

The correct answer is D, WMQJCAResourceAdapter, as this thread pool is responsible for managing the connections and message processing for MDBs. The other options, while important, do not specifically pertain to the execution of MDBs and therefore would not resolve the issue of slow completion.