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Digital Electronics

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

  Modem.
 Microwave systems.
 Coaxial cables.
 Telephone lines.

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Digital Electronics
Slowest memory element is

 Cache
 ROM
 RAM
 Hard Drive

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Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 OR
 AND
 NOR
 XOR

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Digital Electronics
The most suitable gate for comparing two bits is

 OR
 X-OR
 AND
 NAND

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Digital Electronics
8421 code is

 weighted code
 non-weighted code
 alphanumeric code
 self-complementing code

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Digital Electronics
The effect of stray magnetic field on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are

  Parallel.
 Inclined at 30°.
 Perpendicular.
 Inclined at 60°.

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