How many exception Strategies can a flow contain?

• A. One
• B. Two
• C. Several
• D. None

Answer: (A)

When handling errors, a flow has a single place to define what to do: one exception strategy. This means each flow can contain only one exception strategy, which provides a single, centralized way to respond to any errors that occur within that flow. Inside that single strategy you can specify different handlers for different exception types, so Mule can pick the right response based on what failed. If something goes wrong, Mule checks that flow’s exception strategy and executes the matching handler, or passes the error up if none apply. Having more than one exception strategy in the same flow would create ambiguity, which is why only one per flow is allowed. You can, of course, have multiple flows, each with its own exception strategy, or use a global error handler for shared behavior.