A. It must be used because all RMAN-related backup and recovery metadata information is contained in it.
B. It provides a convenient, optional, repository of backup- and recovery-related metadata.
C. It provides the ability to store RMAN scripts for global use by any database that has access to the repository.
D. It provides a means of storing all RMAN backup sets physically in an Oracle database server.
E. It provides the ability to store backup records for more than a year.
答案:(B、C、E)
解析:
A(X),不是必须,也可以使用控制文件来记录备份和恢复的信息。
D(X),
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