Which protocol is responsible for responding to discovery requests from other computers?

During idle periods, the operating system’s __________ module reads data from such slow devices as terminal keyboards and stores them on a highspeed medium such as disk. Later, when the program is loaded, its input data can be read from high-speed disk.

a. dispatching b. queuing c. spooling d. scheduling

You might be required to pay a(n) ____________________ each time you use an image.

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