The ____ obligation required cable systems operators to carry, free of charge, the signals of local commercial and noncommercial educational public broadcast television stations located on the same cable channels as their broadcast channels.

The signaling equipment has three types of communications signals that functions to

a. process switch addressing. b. control digit translations. c. control and process calls. d. provide a clear signal.

____________________ a presentation enables you to distribute the document to others in a form that can be read or viewed but typically not edited.

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