10. Assume that the physical memory size is 1TB. For a 64bit machine with 64KB page size, (a) [5pt] how much bits are used for the page virtual page number and physical page number, respectively? (b) [5pt] compute the page table size for each process. (c) [10pt] compute the page table size for each process if the inverted page table method is used. (d) [10pt] compute the page table size for each process if the 2-level page tables method is used where the table size is equal at each level and only 4MB memory is used from the starting address for the process.