Quiz submission record for quiz2-1-1 at Mon Jun 28 10:21:29 2004: Your Answer for Question 1: a. true - only free will actually increase the number of free blocks Your Answer for Question 2: b. true d. true a call to free may try to free memory that has already been freed, leaving the memory unchanged, and it can free up multiple blocks with one call Your Answer for Question 3: there isn't anything truly equivalent, the garbage collection activation is the closest thing. It can't exist in C because c doesn't keep track of the references to memory allocations. Your Answer for Question 4: reference count wouldn't work because the reference from bottom left to bottom right could disapear while still having all elements valid. mark and sweep could because the pointers make linear chains. Your Answer for Question 5: not sure I completely understand how java is able to do auto memory management and c isn't capable of it. Your unique submission ID is quiz2-1-1-cs61c-gb-1088443289-1600.