Combination checks_______________?
Correct answer: C. determine whether a known relationship between two fields is valid
- A. determine data entry errors on primary keys
- B. ensure that the correct type of data is input
- C. determine whether a known relationship between two fields is valid
- D. determine whether all required fields of the input have actually been entered
Explanation
A combination check tests whether values in two or more fields have a valid known relationship, such as an end date not preceding a start date. It is different from checking a field’s type, presence, or primary-key uniqueness.
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