Question

why can a digital signal send a message over a very long distance more reliably than an analog signal?
a. the digital signal loses quality when copied over and over.
b. the digital signal is less vulnerable to noise and more likely to arrive intact.
c. the digital signal could easily lose information because of noise.
d. the digital signal has waves that curve gradually and have many values.

Explanation:

Digital signals are represented by discrete values (usually 0s and 1s). Noise, which can distort signals during long - distance transmission, has less impact on digital signals because the receiver can easily distinguish between the discrete states. Analog signals, on the other hand, are continuous and more vulnerable to noise - induced distortion.

Answer:

B. The digital signal is less vulnerable to noise and more likely to arrive intact.