DIGITAL SYSTEM DESIGN QUIZ

Which truth table is this?

• XOR

• NOR

• NAND

• NOT

In Boolean algebra A.A is equal to

• A

• 2A

• A²

• 1

How many input and output required for multiplexer ?

• Many input and one output

• One input and many output

• One input and one output

• None of the above

What will the circuit's output be?

• 1

• 0

What is the output Y of this logic cricuit if A = 1, B = 1, and C = 1

• 0

• 1

What is the output Z of this logic cricuit if A = 1 and B = 1

• 0

• 1

What type of logic circuit is represented by the figure shown below?

• XNOR

• XOR

• NAND

• AND

(A+B)(A+C)=

• A+BC

• BC+BA

• ABCD

• AB+CD

An 8:1 multiplexer contains________ selection lines.

• 2

• 3

• 4

• 5

In 1-to-4 demultiplexer, how many select lines are required?

• 1

• 2

• 3

• 4