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Digital Electronics

Digital Electronics
A 15-bit Hamming code requires

 none of these.
 15 parity bits
 4 parity bits
 5 parity bits

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Digital Electronics
Which of the following gates cannot be used as an inverter?

 X-NOR
 NOR
 NAND
 AND

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NOR gate
 X-OR gate
 X-NOR gate
 NAND gate

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Digital Electronics
A D-flip-flop is said to be transparent when

 the output follow input
 the output follows clock
 the output is HIGH
 the output is LOW

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Digital Electronics
The difference between the diagram of a NOR and OR gate is

 OR is more oval than NOR
 OR has got a bubble at its output terminal
 NOR has got a bubble at its output terminal
 OR is more squared than NOR

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an X-OR or an X-NOR
 a NAND or a NOR
 an OR or a NAND
 an AND or an X-NOR

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