18-A potential adverse occurrence or unwanted event that could be injurious to either the accounting information system or the organization is:

A-Threat

B-Exposure

C-Impact

D-Likelihood

19-The internal controls that deter problems from occurring, are:

A-External controls

B-Corrective controls

C-Preventive controls

D-Detective controls

20-The internal controls that discover the non-prevented problems, are:

A-External controls

B-Corrective controls

C-Preventive controls

D-Detective controls