The overhead incurred by multilevel page address translation is significant due to increased table fragmentation significant due to additional memory references offset by caches and TLBs none of the above In an inverted page table, the number of PTEs that must be stored in main memory is proportional to the size of physical memory the size of virtual memory the size of a virtual address space the size of the process Inverted page tables use to map virtual pages to PTEs. arrays hash functions linked lists chaining mechanisms To improve performance, a designer can attempt to reduce the number of collisions that occur in an inverted page table by increasing the size of the inverted page lable increasing the range of the hash function using a hash anchor table both a and b none of the above Page sharing increases the amount of main memory required for a group of processes to run efficiently decreases a system's degree of multiprogramming does not allow modifiable procedures from being used by more than one process at the same time none of the above