Which of the following is a tuning parameter for the JMS connector?

• A. Max redelivery
• B. Session cache size
• C. cache consumer
• D. cache producers

Answer: (B)

Tuning performance and resource usage is the idea here. The JMS connector exposes knobs to optimize how it interacts with the JMS provider, and the one that directly controls how many JMS Session objects are kept for reuse is the session cache size. Reusing sessions avoids the overhead of creating and closing a new Session for every operation, which can significantly improve throughput and reduce latency. However, keeping too many sessions can consume more memory, so you balance it based on workload.

Max redelivery is about how many times a message should be redelivered after a failure, which affects message handling semantics rather than how the connector tunes performance. Cache consumer and cache producers relate to caching those JMS resources, which can affect performance but are not the explicit tuning parameter typically referenced for managing session reuse.