Question

Not knowing whether input data has been accepted by the information system, the user enters the data again, resulting in duplicate event data. The control plan that helps to prevent this error is:

1) key verification
2) confirm input acceptance
3) check digit
4) online prompting

Answer 1

The control plan that helps to prevent duplicate event data when the user enters the data again is key verification.

Step-by-step explanation:

The control plan that helps to prevent duplicate event data when the user enters the data again, not knowing whether it has been accepted by the information system, is key verification.

Key verification involves comparing the entered data with a previously generated unique key or identifier. If the key matches, it means that the data has already been accepted and duplicate entry is prevented.

An example of key verification is when a user creates an account on a website and is sent a unique activation link. When the user clicks on the link to activate the account, the system verifies the key in the link to ensure it matches the generated key, preventing duplicate activation.