Which transaction types are supported by Mule?

• A. Single-resource (local) TX
• B. Global (XA) TX
• C. Both single-resource (local) TX and global (XA) TX
• D. None

Answer: (C)

The concept being tested is how Mule handles transactions. Mule can operate with two kinds of transaction scopes: a local, single-resource transaction and a global, XA (distributed) transaction.

If only one resource is involved in a transactional scope, Mule uses a local transaction that's managed by that resource itself. When multiple resources participate and all of them support XA, Mule can coordinate a global transaction across them using a JTA transaction manager, enabling a two-phase commit across resources such as a database and a message broker.

So, Mule supports both types: local single-resource transactions and global XA transactions, depending on the resources you use and the transaction manager you configure. If some resource isn’t XA-capable, you won’t get a true distributed transaction across all resources.