The ________ describes a unique sequential or random number assigned by Access as each record is entered.

________ metadata associated with digital pictures can include date and time, make and model of camera, thumbnail, aperture, and shutter speed

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

The lpr and sort utilities accept input either from a file named on the command line or from standard input.

a. Name two other utilities that function in a similar manner. b. Name a utility that accepts its input only from standard input.