36. Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?
(a) OR gates only
(b) AND gates and NOT gates
(c) AND gates, OR gates, and NOT gates
(d) OR gates and NOT gates
37. What input values will cause an AND logic gate to produce a HIGH output?
(a) At least one input is HIGH.
(b) At least one input is LOW.
(c) All inputs are HIGH.
(d) All inputs are LOW.
38. The basic logic gate whose output is the complement of the input is the:
(a) OR gate
(b) AND gate
(c) INVERTER gate
(d) comparator
39. How many truth table entries are necessary for a four-input circuit?
(a) 4
(b) 8
(c) 12
(d) 16
40. A logic circuit whose output is LOW when at least one input is HIGH is a(n) _________ gate.
(a) NOR
(b) AND
(c) NAND
(d) exclusive-OR gate
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