Which of the following combines authentication and authorization, and does not use the TCP protocol?

In general, you want to avoid doing things that, in the future, might require you to change working code.

Answer the following statement true (T) or false (F)

In phase modulation, ones and zeroes are sent by varying

a. the height of the sine wave b. the number of cycles-per-second of the sine wave c. the parts of the sine wave that are skipped d. none of the above