中等ICT-EXAM-010
Which statement should you keep in mind for a data-check question?
A. A range check does not prove that the typed value is the true value.✓ 答案
B. Validation and verification are the same process.
C. A primary key may safely contain duplicates.
D. RAM keeps files after the computer is switched off.
解說
Valid data can still be wrong. Say what the check catches and what it misses. The other three statements are standard false claims.