7. Consider a 8-page virtual memory with virtual pages numbered from 0 to 7, 16-byte pages, a 4-page physical memory with page frames numbered from 0 to 3. VPN P R W X PFN +-------+---+ 0|0|1|0|0| 0 | P - presence bit 0 = not present, 1 = present 1|1|0|0|1| 2 | R - read permission 0 = not allowed, 1 = allowed 2|1|1|1|0| 1 | W - write permission 0 = not allowed, 1 = allowed 3|0|1|1|0| 0 | X - execute permission 0 = not allowed, 1 = allowed 4|1|1|0|0| 0 | 5|1|1|1|0| 3 | PFN - page frame number 6|0|1|0|0| 0 | 7|0|1|0|0| 0 | +-------+---+ Starting each time from this page table, what is the result of these virtual address accesses - give either the physical address or the system action (e.g., page fault, protection violation, or both). a. read 0x55 b. read 0x44 c. write 0x33 d. write 0x22 e. inst. fetch 11