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GATE | GATE-CS-2017 (Set 1) | Question 60

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  • Last Updated : 29 Sep, 2021
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Consider a combination of T and D flip-flops connected as shown below. The output of the D flipflop is connected to the input of the T flip-flop and the output of the T flip-flop is connected to the input of the D flip-flop.

g20172_11

Initially, both Q0 and Q1 are set to 1 (before the 1st clock cycle). The outputs
(A) Q1 Q0 after the 3rd cycle are 11 and after the 4th cycle are 00 respectively
(B) Q1 Q0 after the 3rd cycle are 11 and after the 4th cycle are 01 respectively
(C) Q1 Q0 after the 3rd cycle are 00 and after the 4th cycle are 11 respectively
(D) Q1 Q0 after the 3rd cycle are 01 and after the 4th cycle are 01 respectively


Answer: (B)

Explanation: GATE2017_Q60
It can be observed from the diagram that :
Q1 Q0 after the 3rd cycle are 11 and after the 4th cycle are 01

Therefore, option B is correct.



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