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Combinational Logic Analysis problems

1. Using the universal property of a NAND gate, one or more NAND gates can be used to replace an ________.
Options
A. OR gate
B. AND gate
C. inverter
D. any of the above

Correct Answer: any of the above

2. Assume you have A, B, C, and D available but not their complements. The minimum number of 2-input NAND gates required to implement the equation is ________.
Options
A. 3
B. 4
C. 5
D. 6

Correct Answer: 5

3. A node is defined as ________.
Options
A. a common point in a circuit
B. a circuit implemented as a sum-of-products
C. the output signals from a circuit
D. a shorted input

Correct Answer: a common point in a circuit

4. The expression can be directly implemented using only ________.
Options
A. an XOR gate
B. an XNOR gate
C. an AOI circuit
D. three 2-input NAND gates

Correct Answer: an AOI circuit

First 2 3 4 5

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