New Mexico NM-ASR Science Grade 8 Practice Questions - New Mexico Assessment Of Science Readiness - Science, Grade 8 Exam

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A digital signal is being used to send an image from a space probe. The image is converted into a series of 1s and 0s and transmitted as a wave. Which statement best describes an advantage of using a digital signal?

Digital signals can be cleaned up and restored because information is encoded as discrete values Digital signals never lose any energy as they travel Digital signals can only carry one message at a time Digital signals are always quieter than analog signals

Correct Answer:

Digital signals can be cleaned up and restored because information is encoded as discrete values

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