Question

The output signal when a signal x(n)=(0,1,2,3) is processed through an ‘Delay’ system is?

(a) (3,2,1,0)

(b) (1,2,3,0)

(c) (0,1,2,3)

(d) None of the mentioned

I had been asked this question by my college professor while I was bunking the class.

This interesting question is from Discrete Time Systems in section Discrete Time Signals and Systems of Digital Signal Processing

Answer 1

Right answer is (b) (1,2,3,0)

The best I can explain: An delay system is a system whose output is same as the input, but after a delay.