For persistent queues, which statement is true about visibility of messages in VM queues?

• A. You can view messages in a VM queue using a UI
• B. You cannot see the message in a VM queue
• C. Messages in VM queues are stored in a relational database
• D. VM queues are always encrypted

Answer: (B)

VM queues are internal channels used by Mule runtimes for moving messages between apps on the same server. When you configure persistence, the messages are stored so they survive restarts, but that storage is still managed by the runtime and is not exposed as a user-facing view. In other words, even though the queue is durable, you don’t get a visible list of messages through a UI or similar tooling. The messages will be delivered to consumers as designed, but you won’t be able to “see” their contents in a VM queue from the outside. The persistent store is not a relational database, and encryption isn’t implied by default—these aspects would require separate configuration.