单项选择题
A. All three tables in the recycle bin are purged
B. Only the table with the oldest DROPSCN is purged
C. The command returns an error because multiple entries with the same name exist in the recycle bin
D. Only the table with the latest DROPSCN is purged
多项选择题 The ORACLE_SID environment variable is set to +ASM. ASMLIB is not used in the configuration. You executed the following command to startup the Automatic Storage Management (ASM) instance. SQL> STARTUP; Which two activities are performed during a successful start up operation? （）(Choose two.)
多项选择题 YoudecidedtouseDirectNFSconfigurationinanon-RACOracleinstallationandcreatedtheoranfstabfilein/etc.Whichtwostatementsaretrueregardingthisoranfstabfile？（））
单项选择题 ENCRYPT_TSisanencryptedtablespacethatcontainstableswithdata.Whichstatementistrueregardingtheeffectofqueriesanddatamanipulationlanguage（DML）statementsontheencrypteddatainthetables？（）
