单项选择题
You performed the RMAN database backup having a backupset key number 231 with the KEEP FOREVER option. After some days, you want to change the status of the database backup and you issued the following command:
RMAN>CHANGE BACKUPSET 231 NOKEEP;
What is the implication of this command?（）
A. The backup is deleted.
B. The backup is marked unavailable.
C. The backup overrides the backup retention policy.
D. the backup becomes eligible for deletion according to the existing retention policy
相关考题
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单项选择题
View the Exhibit to examine the metrics with a threshold.Which statement is true regarding the Number of Transactions (per second) metric?（）
A. Oracle uses statistical relevance to determine when an adaptive threshold has been breached for the metric.
B. The statistics for the metric values observed over the baseline time period are not examined to determine threshold values.
C. Oracle determines when an adaptive threshold has been breached based on the maximum value captured by the baseline.
D. The total concurrent number of threshold violations, which must occur before an alert is raised for the metric, has been set to zero. -
单项选择题
Consider the following scenario for your database: Which statement is true regarding the backup of the TOOLS tablespace?（）
A. The RMAN backup fails because the TOOLS tablespace is read-only
B. The RMAN skips the backup of the tablespace because backup optimization is enabled
C. The RMAN makes backup because optimization can be enabled only for backups to disk
D. The RMAN makes the backup because no backup of the tablespace exists within the seven day window -
单项选择题
Which statement describes the information returned by the DBMS_SPACE.SPACE_USAGE procedure for LOB space usage?（）
A. It returns space usage of only BasicFile LOB chunks.
B. It returns space usage of only SecureFile LOB chunks.
C. It returns both BasicFile and SecureFile LOB space usage for only nonpartitioned tables.
D. It returns both BasicFile and SecureFile LOB space usage for both partitioned and nonpartitioned tables.
