4. (15 points) On a system using paging to manage main memory, the currently running process uses the page table below: Virtual Reference Dirty bit Frame Valid bit bit page 1 0 0 5 a. (5 points) Which pages above are candidates to be evicted on a page fault? Which, ifany, are better candidates to evict? b. (10 points) Assuming 8 KB pages, what physical addresses would the virtual addresses below map to? Note that some virtual addresses may not have a valid translation, in which case you should note that address causes a page fault. 0x ABCD 0x1792 0x4680 0x5701 4. (15 points) On a system using paging to manage main memory, the currently running process uses the page table below: Virtual Reference Dirty bit Frame Valid bit bit page 1 0 0 5 a. (5 points) Which pages above are candidates to be evicted on a page fault? Which, ifany, are better candidates to evict? b. (10 points) Assuming 8 KB pages, what physical addresses would the virtual addresses below map to? Note that some virtual addresses may not have a valid translation, in which case you should note that address causes a page fault. 0x ABCD 0x1792 0x4680 0x5701