85 PERCENT AND 97 PERCENT ARE THE DATABASE-WIDE DEFAULTS APPLIED TO ALL TABLESPACES

8. þ A. 85 percent and 97 percent are the database-wide defaults applied to all tablespaces.ý B, C, and D. B is wrong because AUTOEXTEND does not affect the warning mechanism (though it may make it pointless). C is wrong because the warning mechanism considers only the tablespace, not the files. D is wrong because by default the space warning is enabled.