ocp-248

QUESTION NO: 248
What does the output on this report indicate?

RMAN> report need backup; 报告需要备份;
RMAN retention policy will be applied to the command
RMAN保留策略将应用于该命令
RMAN retention policy is set to redundancy 1 RMAN保留策略设置为冗余1
Report of files with less than 1 redundant backups报告冗余备份小于1的文件
File #bkps Name

5 0 C:\ORACLE\ORADATA\ORCL\MY_DATA_01.DBF
A. The my_data_01.dbf datafile is corrupted and needs to be restored.
B. The my_data_01.dbf datafile has not yet been backed up. This report does not imply that the data in
the datafile can not be recovered.
my_data_01.dbf
C. The my_data_01.dbf datafile has not yet been backed up. This report implies that the data in the
datafile can not be recovered.
D. The my_data_01.dbf datafile no longer meets the retention criteria for backups.
E. Datafile 5 is missing.
Answer: B
The #bkps columns shows zero, which indicates that the datafile has not been backed up. The datafile
may yet still be recoverable as long as the archived redo logs are available.

输出这份报告表明什么呢？

B.数据文件尚未备份。此报告并不意味着在数据文件中的数据无法恢复。

该＃BKPS列显示为零，这表明数据文件没有被备份， 只要归档重做日志可用， 数据文件可能仍然是可恢复的。