Refer to the exhibit.

What happens to the process if the Read File activity throws a FileIOException?
You are using machines in multiple environments. They have TIBCO ActiveMatrix BusinessWorks installed and are in the same IP subnet. You need to ensure that the machines from one environment are not able to connect to another environment. You must achieve this goal without using additional network technology.
What should you do?
You need to define an Event Handler for asynchronous processing for a given process.
At which levels can you create an Event Handler?
Which runtime entity is required to run in an enterprise mode using the default domain data storage?
If you need to loop through every User record in a database, which scope should you use?