单项选择题
Which mode of database shutdown requires an instance recovery at the time of the next database startup?（）
A. ABORT B. NORMAL C. IMMEDIATE D. TRANSACTIONAL
多项选择题 Whichstatementsaretrueregardingsystem-partitionedtables？（）
多项选择题 Which two statements are true about encrypting RMAN backup?（） (Choose two.)
多项选择题 Which two statements are true regarding the starting of the database instance using the following command？（） SQL>STARTUP UPGRADE
