A(n) _____ is a data validation rule that is used for applying to mandatory data items.
A) sequence check
B) range check
C) asynchronic check
D) existence check

Question

Quizplus · Accepted Answer

An existence check is used for making sure that mandatory data items are present. It verifies that a particular field is filled and not left blank. Therefore, D is the correct choice. A sequence check is used for validating the order of entries, a range check is used for validating if the entries are within a particular range, and an asynchronic check is not a common data validation rule.

A(n) _____ Is a Data Validation Rule That Is Used