303.What is the purpose of the RMAN recovery catalog? (Choose all that apply.)
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.
正确答案是BCE