Final answer:
A synchronous counter can be built using D flip flops to count a specific sequence. Each flip flop represents a bit of the counter and is connected to the next flip flop to create a cascading effect.
Step-by-step explanation:
A synchronous counter can be built using D flip flops to count a specific sequence. In this case, the sequence is 0-2-6-5-3-5-1-0. Each D flip flop represents a bit of the counter and is connected to the next flip flop to create a cascading effect.
For example, to count from 0 to 2, the first flip flop is set to 0, the second flip flop is set to 1, and the third flip flop is set to 0. This pattern continues for each step of the sequence.
To build the counter, you would need as many D flip flops as there are bits in the sequence. In this case, since the sequence goes up to 6, you would need at least 3 flip flops.