Which two approaches should be used to make space when there is no hole large enough for the allocation of a block of memory? Choose 2 answers. Static linking Dynamic linking Swapping Compaction Which bit indicates that a page resides in physical memory? Modified Protection Referenced Present What causes internal memory fragmentation? Free memory being separated into small blocks interspersed by allocated memory More memory space being allocated than a single page can hold System memory becoming exhausted causing it to be swapped to disk An entire page frame being allocated regardless of whether that much memory is needed What is an advantage of a directory with fixed-length entries? Allocating or freeing an entry requires changing one bit. File name entries have no length maximum. Each entry contains two points for the entry. File name length on entries can be changed by moving a pointer