E7H10 - Amateur Extra Class

E7H10 : What information is contained in the lookup table of a direct digital synthesizer (DDS)?
A The phase relationship between a reference oscillator and the output waveform
B Amplitude values that represent the desired waveform
C The phase relationship between a voltage-controlled oscillator and the output waveform
D Frequently used receiver and transmitter frequencies
Correct Answer: Amplitude values that represent the desired waveform