RBSE Sec Voc Telecom Practice Questions - Rajasthan RBSE Secondary Telecom - Vocational Code 112 Exam

Which statement correctly describes a digital signal used in modern telecom?

It varies continuously without discrete steps It represents information as discrete levels such as 0 and 1 It can only travel through air, never through cable It never needs a clock or timing reference in networks

Correct Answer:

It represents information as discrete levels such as 0 and 1

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