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单选题
After running the vmstat command， which of the following would most likely cause the value in the blocked column to be unusually high？（）
A
Kernel thread
B
Too many users
C
Memory shortage
D
Network contention
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Which of the following statements is TRUE concerning the po column of the vmstat command？（）A、 The sys is high when po is high.B、 The po represents the number of page steals.C、 The low values usually indicate insufficient paging space.D、 The low values usually indicate sufficient memory for the load.
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After running the vmstat command， which of the following would most likely cause the value in the blocked column to be unusually high？（）A、 Kernel threadB、 Too many usersC、 Memory shortageD、 Network contention
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A system administrator has a server that is performing poorly. The vmstat command identifies that high CPU usage is the problem. Which of the following commands can be used to identify the eight most active processes running on the server？（）A、ps -ef -t8B、sar -u -p 8C、vmstat -t 8D、topas -p8 -n0 -d0
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Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）A、 foo ； lsps -sB、 tprof -kx ； fooC、 iostat ； foo ； iostatD、 vmstat -s ； foo ； vmstat s
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多选题Your database is up and running and one of your three control files is accidentally erased. You start RMAN and run the following command： RESTORE CONTROLFILE FROM AUTOBACKUP； Which of the following statements is true？（）AThe command restores only the missing control file.BThe command restores all the control files.CThe command fails because the database is running.DThis is the correct way to address this problem.EThis is not the correct way to address this problem.
考题
单选题The system administrator has been getting complaints about slow performance from the server. After running vmstat the administrator notices average readings that show the free list （fre） approaching zero， as well as page-in （pi） and page-out （po） values to be high. Furthermore， the applications running are essential to daily business operations. Which of the following recommendations would provide the best overall improvement？（）A
Increase physical diskB
Increase number of CPU’sC
Increase physical memoryD
Increase number of servers
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多选题Which of the following are not fundamental tasks of the Support Workbench？（）AView long-running SQL workloadsBView problem detailsCGather additional diagnostic informationDCreate a Service RequestEClean up incident data after upload to Oracle Support
考题
单选题Which of the following statements is TRUE concerning the po column of the vmstat command？（）A
The sys is high when po is high.B
The po represents the number of page steals.C
The low values usually indicate insufficient paging space.D
The low values usually indicate sufficient memory for the load.
考题
单选题A system administrator has a server that is performing poorly. The vmstat command identifies that high CPU usage is the problem. Which of the following commands can be used to identify the eight most active processes running on the server？（）A
ps -ef -t8B
sar -u -p 8C
vmstat -t 8D
topas -p8 -n0 -d0
考题
单选题Which of the following should an administrator do after running a command from the console onthe perimeter router?（）A
Update the configuration logsB
Update the network wiring schematicsC
Update the network configuration proceduresD
Compare the configuration with the baseline
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多选题Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt： RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON； After executing this command， in which of the following cases will RMAN make an auto-backup of the control file？ （）Awhen you change the name of a datafileBwhen you drop a table from the databaseCwhen you take an export of the databaseDwhen you back up the database using OS utilitiesEwhen you issue an ALTER SYSTEM SWITCH LOGFILE statementFwhen you issue a BACKUP command from inside the RMAN run block
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单选题An AIX system administrator wants to reset the level at which the SIGDANGER signal is sent to processes so appropriate actions can be taken when paging space is running low. Which of the following commands is used to reset the level？（）A
vmtune -wB
svmon -wC
schedtune -wD
vmstat -s
考题
单选题Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）A
foo ； lsps -sB
tprof -kx ； fooC
iostat ； foo ； iostatD
vmstat -s ； foo ； vmstat s
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