（671）Examine the following RMAN command:

RMAN>CONFIGURE ENCRYPTION FOR DATABASE ON;

RMAN>BACKUP DATABASE PLUS ARCHIVELOG;

Which prerequisite must be met before accomplishing the backup?

A. Provide a password for the encryption

B. Set up an Oracle wallet for the encryption

C. No setup is required as it is a default encryption method

D. Both Oracle wallet and password must be set up for the encryption

答案：（B）

解析：

启用数据库备份加密的先决条件就是先要设置一个oracle wallet

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Oracle 11G OCP 1Z0-053 671