Which are the phases of a batch job?

• A. input (optional), load and dispatch (implicit), process (required), on complete (optional)
• B. start, execute, finish
• C. initialize, transform, terminate
• D. receive, route, respond

Answer: (A)

In a MuleSoft batch job, the processing flow is composed of four phases: input (optional), load and dispatch (implicit), process (required), and on complete (optional). The input phase is optional because you might already have data ready to batch, so you don’t have to define an explicit input step. The load and dispatch phase handles gathering the input and splitting it into chunks that can be processed, with dispatch coordinating how those chunks are assigned to workers; this is built into the batch framework and often described as implicit. The process phase is where you specify the work to be done on each batch item, and it is required because that’s the core action performed for every item. The on complete phase runs after all items have been processed and is used for cleanup or final steps; this is optional. The other options don’t map to the standard MuleSoft batch lifecycle, as they describe more generic or different kinds of workflows rather than the structured batch phases.