(True/False)(20 points) a. Modern microprocessors can dynamically apply voltage-clock scaling to limit power consumption. Also modern microprocessors can dynamically shutdown part of the processor to limit power consumption. b. Since the main memory uses DRAM devices which must be refreshed periodically. Hence, refresh commands must be issued to main memory by operating system kernel periodically. Main memory has a high read/write bandwidth because it uses multiple banks/ranks and DDR DRAM devices. However, it has a high latency because addresses are sent separately (row and column) and it uses capacitors to store information which needs time to charge. When there is a miss in LLC, there will be a long and constant delay to read in the missed cache ine from SDRAM-based DIMM. c. d. Answer: (a)