MUX_DEMUX_CODEC

What is the primary purpose of a multiplexer?

• To combine multiple signals into a single output

• To separate a single signal into multiple outputs

• To convert analog signals to digital signals

• To amplify weak signals

Which of the following devices is used to implement a multiplexer?

• Logic gates

• Transistors

• Capacitors

• Resistors

What is the number of control inputs required for an 8:1 multiplexer?

• 2

• 3

• 4

• 8

What is the primary purpose of a demultiplexer?

• To combine multiple signals into a single output

• To separate a single signal into multiple outputs

• To convert analog signals to digital signals

• To amplify weak signals

In a demultiplexer, the number of output lines is determined by:

• The number of control inputs

• The number of select inputs

• The number of data inputs

• The number of input lines

A 4-to-16 line decoder has how many output lines?

• 4

• 3

• 16

• 1

What is the output of a 4-to-2 encoder when the input is 1000?

• 00

• 01

• 10

• 11

How many output lines are there for a decimal to Octal decoder?

• 4

• 1

• 8

• 2

How many 2 - 4 line decoders are required to construct a 3 - 8 line decoders?

• 1

• 4

• 3

• 2

Only one input is activated in an encoder.

• True

• False