Alternative Logic Gates - SS2 ICT Past Questions and Answers - page 1
1
What is the symbol for a NAND gate?
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A
⊕
B
⊽
C
⊼
D
 ¬
2
Which logic gate produces a 1 output only when all inputs are 0?
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A
XOR gate
B
AND gate
C
NOT gate
D
NOR gate
3
How does an XNOR gate behave when the number of input 1s is odd?
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A
Produces a 0 output
B
Produces a 1 output
C
Doesn't change the output
D
Outputs an error signal
4
Which gate converts 0 to 1 and 1 to 0?
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A
XOR gate
B
OR gate
C
XNOR gate
D
NOT gate
5
What is the function of an XOR gate?
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A
Produces a 0 output when all inputs are 1
B
Produces a 1 output when all inputs are 0
C
Produces a 1 output when the number of input 1s is odd
D
Performs a logical AND operation
6
The output of a NOR gate is the logical NOT of the output of which gate?
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A
OR gate
B
AND gate
C
NOT gate
D
XOR gate
7
Which gate is represented by the symbol ⊖?
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A
XNOR gate
B
NAND gate
C
OR gate
D
NOR gate
8
What is the function of a NOR gate?
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A
Produces a 1 output when all inputs are 0
B
Performs a logical OR operation
C
Converts 0 to 1 and 1 to 0
D
Produces a 0 output when the number of input 1s is even
9
Which logic gate is an AND gate followed by a NOT gate?
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A
XOR gate
B
NOR gate
C
NAND gate
D
XNOR gate
10
What is the output of an XOR gate when all inputs are 1?
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A
0
B
1
C
NOR gate
D
NAND gate
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