Oracle Exadata Database Machine X7 and Database In-Memory — Question 17

A customer is developing a custom application that involves a multistep provisioning process for a new account. There is a custom Java client application that is generating multiple JMS messages as part of the process and sending them to the WebLogic tier where they are processed.
Which three steps must you take to implement the solution to allow for scalability and parallel processing of multiple simultaneous provisioning requests while ensuring messages for an individual process are not delivered out of order?

Answer options

• A. Update the client application that is creating the JMS messages to use Unit of Work.
• B. Configure a WebLogic Cluster for Distributed JMS.
• C. Update the client application that is creating the JMS messages to use Unit of Order.
• D. Enable XA Transactions on the JMS Connection Factory used by the client application.
• E. Enable Load Balancing on the JMS connection factory used by the client application.

Correct answer: B, C, D

Explanation

The correct answer includes configuring a WebLogic Cluster for Distributed JMS (B), which is essential for scalability in handling multiple messages. Using Unit of Order (C) ensures that messages related to the same process are processed in sequence. Enabling XA Transactions (D) allows for transactional operations across multiple resources, which is critical for maintaining data integrity. Options A and E do not directly address the requirements of message order and scalability in this context.