Q.1
Why is a demultiplexer called a data distributor?
  • a) The input will be distributed to one of the outputs
  • b) One of the inputs will be selected for the output
  • c) The output will be distributed to one of the inputs
  • d) Single input gives single output
Q.2
Most demultiplexers facilitate which type of conversion?
  • a) Decimal-to-hexadecimal
  • b) Single input, multiple outputs
  • c) AC to DC
  • d) Odd parity to even parity
Q.3
In 1-to-4 demultiplexer, how many select lines are required?
  • a) 2
  • b) 3
  • c) 4
  • d) 5
Q.4
In a multiplexer the output depends on its ____________
  • a) Data inputs
  • b) Select inputs
  • c) Select outputs
  • d) Enable pin
Q.5
In 1-to-4 multiplexer, if C1 = 1 & C2 =then the output will be ____________
  • a) Y0
  • b) Y1
  • c) Y2
  • d) Y3
Q.6
How many select lines are required for a 1-to-8 demultiplexer?
  • a) 2
  • b) 3
  • c) 4
  • d) 5
Q.7
How many AND gates are required for a 1-to-8 multiplexer?
  • a) 2
  • b) 6
  • c) 8
  • d) 5
Q.8
Which IC is used for the implementation of 1-to-DEMUX?
  • a) IC 74154
  • b) IC 74155
  • c) IC 74139
  • d) IC 74138
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