Question

A computer system that writes the before-and-after results of every transaction to a log file is demonstrating which of the following controls?

1. Audit trail

2. Source data control

3. Data transmission control

4. Completeness check

Answer 1

A computer system that writes the before-and-after results of every transaction to a log file is demonstrating which of the following controls?

1:The answer is audit trail because audit trail is a security-relevant chronological record, set of records, and/or destination and source of records that provide documentary evidence of the sequence of activities that have affected at any time a specific operation, procedure, or event.

2:source data control is not correct because source data control interacts with the data-bound controls and hides the complex data binding processes. These are the tools that provide data to the data bound controls and support execution of operations like insertions, deletions, sorting, and updates.

3 Data transmission control is not correct because Data transmission is a means of transmitting digital or analog data over a communication medium to one or more devices. It allows the transmission and communication of devices in different environments: point-to-point, point-to-multipoint, or multipoint-to-multipoint.

4:completeness check is not correct because Completeness checking may be carried out at either the survey or questionnaire levels. - Completeness checking at survey level ensures that all survey data have been collected. ... -Completeness checking at questionnaire level insures that routing instructions have been followed.

so at last the answer to this question is audit trail and i have describe the reason in the 1st point so if u have any doubts in this you can clear that in the comment box given below +plus if my answer is good and understandable it would be great to receive a thums-up from you guys .

thank you happy coding !