单项选择题
View the Exhibit and examine the output. You execute the following RMAN command to perform the backup operation：
RMAN> RUN { ALLOCATE CHANNEL c1 DEVICE TYPE disk MAXOPENFILES 8； BACKUP DATABASE FILESPERSET 4； }
What is the multiplexing level in the preceding backup process？（）
A. 4
B. 8
C. 7
D. 0
相关考题
-
单项选择题
You want to configure the Flashback Database feature and retain flashback logs for three days. Presently the database is open and configured in ARCHIVELOG mode. The following steps must be performed in the correct sequence to do this： 1. Set the retention target： SQL> ALTER SYSTEM SET DB_FLASHBACK_RETENTION_TARGET=4320； 2. Enable Flashback Database： SQL> ALTER DATABASE FLASHBACK ON； 3. Mount the database： SQL> STARTUP MOUNT EXCLUSIVE 4. Shutdown the instance： SQL> SHUTDOWN IMMEDIATE 5. Open the database： SQL> ALTER DATABASE OPEN； Choose the correct sequence.（）
A. 4， 1， 3， 2， 5
B. 4， 3， 1， 2， 5
C. 2， 4， 3， 5， 1
D. 4， 2， 5， 3， 1 -
多项选择题
Whichtwocommandsnevertriggeranimplicitrebalancingwithinthediskgroup？（）
A. ALTER DISKGROUP misc MOUNT
B. ALTER DISKGROUP misc DROP DISK misc2
C. ALTER DISKGROUP misc CHECK ALL NOREPAIR
D. ALTER DISKGROUP misc RESIZE ALL SIZE 1023m
E. ALTER DISKGROUP dgroupA ADD DISK ’/devices/A*’ -
多项选择题
IndentifytwoadvantagesofusingrecoverycataloginsteadofthecontrolfileofthedatabaseinRecoveryManager（RMAN）.（）
A. You can use RMAN stored scripts
B. Recovery is faster if data is stored in catalog in addition to the control file
C. You can store backup information of all registered databases in one place
D. Database backups are automatically deleted when they are older than the specified time period
