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187.RMAN provides more granular catalog security through which feature?
A. Virtual private database
B. Virtual private catalog
C. RMAN virtual database
D. RMAN secure catalog
E. Oracle Database Vault
Answer: B
答案解析:
参考:http://blog.csdn.net/rlhua/article/details/13169205
题问:RMAN提供更细化的目录安全功能是通过哪个特性?
virtual private catalog
A subset of the metadata in a base recovery catalog to which a database user is granted access. The owner of a base recovery catalog can grant or revoke restricted access to the recovery catalog to other database users. Each restricted user has full read/write access to his own virtual private catalog。
virtual private catalog 虚拟专用目录(VPC)使用此功能可以合并RMAN 资料档案库并保持职责分离,这是一项基本安全要求。
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