Quiz submission record for quiz2-1-1 at Mon Jun 28 01:11:39 2004:

Your Answer for Question 1:
a is false. If there is no free block big enough malloc will request a new block of memory from the OS.

b is true. if new memory is requested from the OS and the size of the returned chunk matches the desired size exactly

c is true. if new memory is requested but not used up completely new blocks will become available.

Your Answer for Question 2:
a false - 2 adjacent free blocks may be combined
b true - same reason
c true if a block between two free blocks is freed and teh 3 blocks are combined into 1
d false. free does not rearrage fragments.

Your Answer for Question 3:
Java equiv of malloc = new
java equiv of free = garbage collection
c relies on pointers to specific memory addresses. these pointers need to be updated if the memory is reorganised.

Your Answer for Question 4:
not by reference count because there are still references to all of the objects. even tho there aren't external references

mark and sweep is ok

Your Answer for Question 5:
notes are well written and helpful.


Your unique submission ID is quiz2-1-1-cs61c-ay-1088410299-173.