Exercise: Combinational Logic Analysis

Questions for: Combinational Logic Analysis

The expression can be directly implemented using only ________.
A:
an XOR gate
B:
an XNOR gate
C:
an AOI circuit
D:
three 2-input NAND gates
Answer: A
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Using the universal property of a NAND gate, one or more NAND gates can be used to replace an ________.
A:
OR gate
B:
AND gate
C:
inverter
D:
any of the above
Answer: D
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A node is defined as ________.
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
Answer: A
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Assume that you have a 3-input NAND gate but need only a 2-input gate. The unused input should be ________.
A:
connected to ground
B:
left open
C:
connected to a HIGH
D:
any of the above
Answer: C
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If both inputs of a 2-input NOR gate are connected, the gate will function as an ________.
A:
OR gate
B:
AND gate
C:
inverter
D:
any of the above
Answer: C
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