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Digital Electronics

Digital Electronics
The main equation for a D flip flop is

 Q=1
 Q=D
 Q=D'
 Q=0

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Digital Electronics
Boolean algebra is also known as

 Switching algebra
 Counting algebra
 Gate algebra
 Transistor algebra

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Digital Electronics
The number of rows in the truth table of a 4-input gate is

 4
 16
 12
 8

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

 Only (III)
 Only (II)
 Both (I)&(III)
 Both (II)&(III)

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Digital Electronics
Which of the following codes is known as the 8421 code?

 BCD code
 Gray code
 XS-3 code
 ASCII code

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

12 CPS
None of these
10 CPS
120 CPS

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