单项选择题
The warning and critical threshold values have been set to 85% and 97%， respectively， for one of the tablespaces. The current tablespace space usage is 54%. You modify the warning threshold to be 50% and critical threshold to be 53% in Database Control. Which statement is true？（）
A.The new setting would be applied but no alerts would be raised immediately.
B.The new setting would be applied and an alert would be raised immediately.
C.The new setting would be ignored because the tablespace space usage is more than the specified threshold value.
D.The new setting would cause an error because the tablespace space usage is more than the specified threshold value.
相关考题
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多项选择题
Intheparameterfileofyourproductiondatabase，theFAST_START_MTTR_TARGETparameteris setto300tooptimizeinstancerecovery.Whileobservingtheperformanceofthedatabaseduringinstancerecovery，youfindthattheredologfilesarenotsizedproperlytosupportthisactivity.Whichtwosourcescouldyouusetodeterminetheoptimalsizeoftheredologfiles？（）
A.the V$LOG view
B.the V$DBFILE view
C.the V$LOGFILE view
D.the V$INSTANCE_RECOVERY view
E.Oracle Enterprise Manager Database Control -
多项选择题
YourproductiondatabaseisrunningintheARCHIVELOGmodeandtheARCnprocessisfunctional.Youhavetwoonlineredologgroups.Whichthreebackgroundprocesseswouldbeinvolvedwhenalogswitchhappens？（）
A.archival
B.log writer
C.database writer
D.system monitor
E.process monitor
F.change tracking writer -
多项选择题
In your production database， you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation， you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members. Which two actions would you take to improve the performance of the database server？ （）
A.increase the size of the redo log buffer
B.increase the number of redo log groups
C.increase the number of log writer processes
D.increase the number of ARCn processes
E.change the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location
