OCP-1Z0-053-V12.02-272题
2013-10-07 00:27
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272.You issue the following RMAN command to set a retention policy on a database:
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RMAN>CONFIGURE RETENTION POLICY TO REDUNDANCY 2;
What will be the outcome of issuing this command?
A. After two days, a backup will be marked obsolete
B. After two days, a backup will be deleted from the media
C. If the RMAN repository has records of two or more recent backups of a file, then older backups will be
deleted from the media.
D. If the
RMAN
repository has records of two or more recent backups of a file, then older backups will be
marked obsolete.
Answer: D
答案解析:
官方参考:http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmconfb.htm#i1019345
The safer , easier way to help you pass any IT exams.
78 / 181
RMAN>CONFIGURE RETENTION POLICY TO REDUNDANCY 2;
What will be the outcome of issuing this command?
A. After two days, a backup will be marked obsolete
B. After two days, a backup will be deleted from the media
C. If the RMAN repository has records of two or more recent backups of a file, then older backups will be
deleted from the media.
D. If the
RMAN
repository has records of two or more recent backups of a file, then older backups will be
marked obsolete.
Answer: D
答案解析:
Configuring a Redundancy-Based Retention Policy
TheREDUNDANCYparameter of the
CONFIGURE
RETENTION
POLICYcommand specifies how many full or level 0 backups of each data file and control file that RMAN should keep. If the number of full or level 0 backups for a specific data file or control file exceeds the
REDUNDANCYsetting, then RMAN considers the extra backups as obsolete. The default retention policy is
REDUNDANCY 1.
官方参考:http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmconfb.htm#i1019345
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