20. Comparing daisy-chained interrupts, vectored interrupts and using an IPMC: a. A Daisy chain system is easiest to modify. b. A vectored interrupt system is fastest. c. Using an IPMC is faster than a daisy chain system. 18. An Interrupt Priority Management Circuit (IPMC) is used when the designer wants: A more flexible way of managing interrupts. b. A faster response that that available from a hardwired daisy chain system. c. An equivalent system to that of an interrupt polling system. a. d. None of the above. d. All of the above. Reason for your answer: Reason for your answer: 19. An IPMC uses an In-Service register: a. To distinguish between lower and higher priority devices. b. To add fine grain control not available with a CLi instruction. c. To selectively block a group of interrupting devices. DOOD d. All of the above. Reason for your