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Digital Electronics

Digital Electronics
The number of parity bits in a 12-bit Hamming code is

 6
 5
 8
 4

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Digital Electronics
Digital circuit can be made by the repeated use of ___________

NOT gates
NAND gates
OR gates
None of these

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Digital Electronics
Which of the following is not a transmission medium?

 Coaxial cables.
  Modem.
 Microwave systems.
 Telephone lines.

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -128 to 128
 -256 to 256
 -256 to 255
 -128 to 127

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Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 NAND
 OR
 AND
 none of these

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Digital Electronics
A switch-tail ring counter is made by using a single D-FF, the following circuit is

  T FF.
  S-R FF.
  D FF.
  J-K FF.

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