Let {Xn} be an i.i.d. Bernoulli process with a parameter q it is valid for all values of n and P[Xn = 1] = q. Let {Yn} be another binary process based on the following input-output relationship, note that ⊕ illustrates the XOR operation (or mod 2 addition): Yn = Yn−1 ⊕ Xn(a) Given that the covariance of the stochastic process is CX,X(k) = (2/9) δk and q > (1/2) then what value can q take on?(b) What type of discrete process does Yn represent? Can it be implemented in a finite impulse response filter? Explain your reasoning.