A. PCTFREE defaults to 10% for all blocks in all segments for all compression methods

B. Insert operations always attempt to find blocks with free space appropriate to the length of the row being inserted

C. Update operations always attempt to find blocks with free space appropriate to the length of the row being updated

D. ASSM assigns blocks to one of four fullness categories based on what percentage of the block is allocated for rows

E. A block will always be eligible for inserts if the row is short enough to fit into the block