Exercise 8.3.1: Approaches to implementing directory entries. About A file directory contains 50 file entries and occupies one or more pages of virtual memory where the page size is 1000 bytes. Approach 1: Each directory entry contains a file name of length 10 bytes followed by attributes of length x bytes. Approach 2: Each directory entry contains a file name of length 10 bytes followed by a pointer of 10 bytes, which points to the attributes of length x bytes on a separate page. (e) The break-even point: Determine the size of x when the two approaches access the same number of pages