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Computer Science Set-1
Digital Logic
25

Digital Logic MCQ with Answers

25) The digital multiplexer is basically a combination logic circuit to perform the operation

AND-AND

OR-OR

AND-OR

OR-AND

Answer is:

AND-OR

Digital Logic MCQ with Answers

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Related Digital Logic MCQ with Answers

26) The output of NOR gate is

High if all of its inputs are high

Low if all of its inputs are low

High if all of its inputs are low

High if only of its inputs is low

Answer is:

High if all of its inputs are low

27) How many lines the truth table for a four-input NOR gate would contain to cover all possible input combinations ?

4

8

12

16

Answer is:

16

28) A toggle operation cannot be performed using a single

NOR gate

AND gate

NAND gate

XOR gate

Answer is:

AND gate

29) Which table shows the electrical state of a digital circuit ′s output for every possible combination of electrical states in the inputs

Function table

Truth table

Routing table

ASCII table

Answer is:

Function table

Digital Logic MCQ with Answers

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