A 4-bit presetable UP counter has preset input 0101. The preset operation takes place as soon as the counter reaches 1111. The modulus of the counter is
A. 5
B. 10
C. 11
D. 15
Answer: Option B
A. 5
B. 10
C. 11
D. 15
Answer: Option B
In which of the following base systems is 123 not a valid number?
A. Base 10
B. Base 16
C. Base 8
D. Base 3
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