Access control at many businesses and organizations is provided by ____, which allow only authorized individuals to enter an office building, punch in or out of work, or access the company network via an access card or a fingerprint or hand scan.

A(n) ________ is a three character code after the period at the end of a filename that is used to designate the type of file represented

Fill in the blank(s) with correct word

________ validation works very similar to decimal validation except the value entered must be a date that satisfies the specified criteria

Fill in the blank(s) with the appropriate word(s).