A 2-input gate that can be used to pass a digital waveform unchanged at certain

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Question
A 2-input gate that can be used to pass a digital waveform unchanged at certain times and inverted at other times is a(n) ________.
Options
A. AND gate
B. OR gate
C. NAND gate
D. XOR gate

Correct Answer

XOR gate

Logic Gates problems

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1. If A is LOW or B is LOW or BOTH are LOW, then X is LOW. If A is HIGH and B is HIGH, then X is HIGH. These rules specify the operation of a(n) ________.
Options
A. AND gate
B. OR gate
C. NAND gate
D. XOR gate

3. A major advantage of ECL logic over TTL and CMOS is ________.
Options
A. low power dissipation
B. high speed
C. both low power dissipation and high speed
D. neither low power dissipation nor high speed

4. When does the output of a NAND gate = 1?
Options
A. Whenever a 0 is present at an input
B. Only when all inputs = 0
C. Whenever a 1 is present at an input
D. Only when all inputs = 1

5. The gates in this figure are implemented using TTL logic. If the input of the inverter is open, and you apply logic pulses to point B, the output of the AND gate will be ________.
Options
A. a steady LOW
B. a steady HIGH
C. an undefined level
D. pulses

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