Existence checks:
A) determine whether the input data for each field falls within the legitimate set or range of values defined for that field.
B) determine whether all required fields on the input have actually been entered.
C) determine data entry errors on primary keys.
D) compare data entered against the known formatting requirements for that data.
E) ensure that the correct type of data is input.

Question

Quizplus · Accepted Answer

Existence checks are used to verify that all required fields have been filled out in the input data.

Existence Checks