单项选择题
Examine this syntax which allocates channels during a parallel image copy：
RMAN> CONFIGURE DEVICE TYPE disk parallelism 4：
2> COPY
3> datafile 1 TO ‘/BACKUP/datafile1.dbf’，
4> datafile 2 TO ‘/BACKUP/datafile2.dbf’，
5> datafile 3 TO ‘/BACKUP/datafile3.dbf；
RMAN>COPY
2> datafile 4 TO ‘/BACKUP/datafile4.dbf’；
How many channels are used？（）
A.0
B.1
C.3
D.4
相关考题
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单项选择题
YouarereadytoimplementRMANinthebackupandrecoverstrategyforyourcompany.WhichsystemprivilegemusttheRMANuserhavetobeabletoconnectandexecuteRMANcommandsonatargetdatabase？（）
A.SYSDBA
B.SYSOPER
C.No system privileges are required for the RMAN user.
D.Only SYS user can connect and execute RMAN commands on a target database. -
单项选择题
Youneedtorecoverfivedatafilesthatarespreadacrossmultipledisks.Whichinitializationparametershouldyousettospeedupredoapplication？（）
A.RECOVERY_PARALLELISM
B.FAST_START_MTTR_TARGET
C.LOG_CHECKPOINT_INTERVAL
D.FAST_START_PARALLEL_ROLLBACK -
单项选择题
ClicktheExhibitbuttonandexaminethediagram，whichillustratesthecomponentsperformingtaskswithinanOracleSharedSeverenvironment.Whichtaskisbeingperformedbycomponent4？（）
A.The PMON process registers the request in the response queue.
B.A shared sever places the process request in the response queue.
C.A request within the request queue is processed by an idle shared server process.
D.A dispatcher assigns a request from the request queue to and idle shared server process.
