Which one of the following does not describe a validating filter?

1.	Which one of the following does not describe a validating filter?
A.	Are used to allow or disallow specific characters in a string
B.	Are used to validate user input
C.	Strict format rules
D.	Returns the expected type on success or FALSE on failure
Answer» B. Are used to validate user input

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Which one of the following does not describe a validating filter?

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