What must happen after creating a job when using the Bulk API?

After creating a job using the Bulk API, the next step is to create batches of records and send them to the server. This is a crucial part of the process because the Bulk API is designed to handle large volumes of data efficiently by breaking them down into manageable batches. Once the job is created, you cannot process or load data until you have defined how the data is organized in these batches.

Sending batches to the server allows for concurrent processing, which enhances performance, especially when dealing with large datasets. Each batch can be processed independently, and the Bulk API handles them asynchronously, providing mechanisms to check for the success or failure of each batch after submission.

The other options, while relevant to other stages of the data integration process, do not align with the immediate step that follows job creation in the context of using the Bulk API. Checking the job status, closing the job, and deleting the job are all actions that would typically occur after batches have been created and sent for processing.