Question

What is a multiplexer?

(a) It is a type of decoder which decodes several inputs and gives one output

(b) A multiplexer is a device which converts many signals into one

(c) It takes one input and results into many output

(d) It is a type of encoder which decodes several inputs and gives one output

I got this question by my college director while I was bunking the class.

I need to ask this question from Multiplexers (Data Selectors) topic in division Combinational Circuits of Digital Circuits

Answer 1

The correct choice is (b) A multiplexer is a device which converts many signals into one

For explanation: A multiplexer (or MUX) is a device that selects one of several analog or digital input signals and forwards the selected input into a single line, depending on the active select lines.