A.No more data files can be added to the tablespace.
B.Segment space is managed by free lists in the tablespace.
C.A user created without being assigned a default tablespace uses this tablespace.
D.The tablespace can be dropped with the current setting with segments present in it

A.Multiple transactions can use the same undo segment.
B.A transaction is assigned an undo segment when it is started.
C.More than one transaction cannot share the same extent in the undo tablespace.
D.The transactions use system undo segment to store undo data if all the segments in the undo tablespaceare used.