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Digital Electronics

Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 NAND
 X-OR
 NOR
 AND, OR, and NOT

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Digital Electronics
An exclusive NOR gate is logically equivalent to

 inverter followed by an X-OR gate
 X-OR gate followed by an inverter
 NOT gate followed by a NOR gate
 complement of a NOR gate

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Digital Electronics
An OR gate has 6 inputs. The number of input words in its truth table are

32
6
128
64

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Digital Electronics
Which of the following is a self-complementing code?

 cyclic code
 Gray code
 XS-3 code
 Hamming code

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Digital Electronics
In Boolean algebra, the bar sign (-) indicates ___________.

None of these
NOT operation
AND operation
OR operation

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Digital Electronics
Master-slave flip flop consists of ________ flip-flop(s).

 1
 2
 4
 3

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