Should this not be in the Interview Questions section and not CICS?
There are several levels of looping transactions
1. loops that include CICS interactions
1a. if the site has a CICS montor, the monitor can be used to kill the task
1b. if the site does not have CICS monitor, the task may be cancelled from another terminal (use CEMT I TAS) to identify the task to kill).
2. loops that do not include CICS interactions
2a. if the site has a CICS monitor, try to kill the task using the monitor
2b. if the site does not have a CICS monitor, the CICS region may need to be killed and restarted.
2c. if the site does not have a CICS monitor and only one processor in the machine, an IPL may be required to reset the system