The Sequential FSM Finite State Machine DIGIQ based questions are very important for any digital interview. Sharing a few of the FSM questions with answers. The question sequence or pattern detector will be a fixed question in many written tests such as NVIDIA, Western Digital, Analog Devices, etc. FSM Finite State Machine Questions and Answers 1. Design a finite state machine FSM for a serial two's complement block and also draw the logic diagram associated with it by using D-flipflop.  Answer: The main logic behind this is, start from the least significant bit and retain the bits until and first 1-bit has occurred. Once a 1-bit is found, start complementing the bits if 1 makes it 0 and if 0 make it 1. Note