OCP换题库了，最新052考试题库及答案整理-59

59、In which two cases is a consistent database backup created?

A. when the RMAN BACKUP command is used while the database is OPEN READ ONLY

B. when the RMAN BACKUP AS COPY command is used while the database is OPEN RESTRICTED

C. when the RMAN BACKUP AS COPY command is used while the database is OPEN

D. when O/S commands are used to copy database files after a database instance is shut down normally

E. when the RMAN BACKUP command is used while the database is mounted

Correct Answer: AD

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OCP换题库了，最新052考试题库及答案整理-59

原文：https://www.cnblogs.com/alice9313/p/9660899.html