The sequence of states $(Q_1 Q_0)$ of the given synchronous sequential circuit is ________.

In a given sequential circuit, initial states are Q$$_1$$ = 1 and Q$$_2$$ = 0. For a clock frequency of 1 MHz, the frequency of signal Q$$_2$$ in kHz, is ___________ (rounded off to the nearest integer).

for the circuit shown, the clock frequency is f₀ and the duty cycle is 25%. For the signal at the Q output of the Flip-Flop, ___________.

A state transition diagram with states A, B, and C, and transition probabilities p₁, p₂, ....., p₇ is shown in the figure (e.g., p₁ denotes the probability of transition from state A to B). For this state diagram, select the statements which is/are universally true.