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Oracle OCP 1Z0-053 Q706(Rman Retention Policy)

原创 Oracle 作者:abstractcyj 时间:2016-03-23 10:47:14 0 删除 编辑
706. You execute the following command to set the redundancy retention policy in Recovery Manager
(RMAN):
RMAN> CONFIGURE RETENTION POLICY TO REDUNDANCY 3;
Identify the statement that correctly describes the implications of this command.
A, when there are already three backups, for the fourth backup RMAN removes the oldest backup.
B. When there are already three backups, for the fourth backup RMAN marks the oldest backup as
obsolete.
C. the number of backups that are retained is equal to three and it includes full, incremental, and
cumulative backups.
D. when there are already three backup, one of the existing backups must be removed manually before
taking the fourth backup.
Answer:B

obsolete的备份并不会被自动删除,除非执行:delete obsolete

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曾从事java方向开发多年。近年已经转入数据库方向。主要擅长SQL优化,Oracle数据库问题诊断,Oracle备份与恢复等。服务于医药物流,医院等行业

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