多项选择题
A.the size of an undo block
B.the size of the redo log files
C.undo blocks generated per second
D.the size of the database buffer cache
E.the value of the UNDO_RETENTION parameter
多项选择题 You connected to the database using the following connection string： CONNECT hr/hr@test.us.oracle.com：1521/mydb Which three statements are correct regarding the connection string？（）
单项选择题 View the Exhibit to see the output of queries on DATABASEPROPERTIES and DBAUSERS. You observe that the current default permanent tablespace of the database is running out of space and you decide to change it to NEWDEFTBSP. You create a new user， USER04， after changing the default permanent tablespace of the database. What would be the new user’s default tablespace？（）
多项选择题 Identifythetwotablespaceswhosedatafilesaresocriticalthatonlyaclosedrecoveryispossible.（）