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多項選擇題

Exhibit:

View the Exhibit. 
Your Oracle 10g database has 6 tablespaces in which: 
-TEMP is the default temporary tablespace 
-UNDOTBS1 is the default undo tablespace 
-USERS is the default permanent tablespace 
In this database, which two tablespaces can be made read only?()

A.TEMP
B.PROD
C.USERS
D.SYSAUX
E.SYSTEM
F.UNDOTBS1

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