更多"You notice a performance change in "的相关试题:
[多项选择] You notice a performance change in your production Oracle database and you want to know which change has made this performance difference. You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) report to further investigation. Which three findings would you get from the report?（）
A. It detects any configuration change that caused a performance difference in both time periods.
B. It identifies any workload change that caused a performance difference in both time periods.
C. It detects the top wait events causing performance degradation.
D. It shows the resource usage for CPU, memory, and I/O in both time periods.
E. It shows the difference in the size of memory pools in both time periods.
F. It gives information about statistics collection in both time periods.
[单项选择]You notice that the performance of your production 24/7 Oracle database significantly degraded.Sometimes you are not able to connect to the instance because it hangs. You do not want to restart thedatabase instance.How can you detect the cause of the degraded performance?（）
A. Enable Memory Access Mode, which reads performance data from SGA.
B. Use emergency monitoring to fetch data directly from SGA analysis.
C. Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest Automatic Workload Repository (AWR) snapshots.
D. Use Active Session History (ASH) data and hang analysis in regular performance monitoring.
E. Run ADDM in diagnostic mode.
[单项选择]You are too rigid: you must learn to change your plans when the situation it.
A. calls on
B. calls for
C. calls forth
D. calls in
[单项选择]
CMOS SETUP utility allows you to change your system （） by selecting a variety of options.
A. devices
B. software
C. configuration
D. size
[单项选择]If you ______ change your mind, please let us know.
A. shall
B. should
C. will
D. would
[单项选择]______ do you change the cell for your watch
A. How many
B. How often
C. How little
D. How soon
[单项选择]It's too late to change your mind now, so there's no point in（）tears over it.
A. discarding
B. streaming
C. shedding
D. flowing
[单项选择]If you ______ your influence, they may change their decision.
A. compel
B. exert
C. expose
D. vary
[单项选择] You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE; The next day, you issue the following command: BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which statement about the use of the change tracking file is true?（）
A. RMAN reads the block change tracking file only when it performs the incremental level 0 backup.
B. RMAN reads the block change tracking file when it performs both incremental backups.
C. RMAN reads the block change tracking file only when it performs the incremental level 1 backup.
D. RMAN does not read the block change tracking file when it performs either incremental backup.
[多项选择]You notice that your RMAN script used to copy the datafiles， control files， and archived redo log files is performing very slowly. Which two changes might you want to include in your RMAN script to speed up the COPY commands？（）
A. NOCHECKSUM
B. MAXCORRUPT
C. CHECK LOGICAL
D. BACKUP INCREMENTAL
E. CONFIGURE DEVICE TYPE ... PARALLELISM
[单项选择]If you will ( ) our last letter you will notice that we ask for bank reference.
A. refer to
B. refer
C. be referring
D. be referred to
[单项选择]If you want to change to a double room you'll have to pay ______ 50 Yuan.
A. an extra
B. other
C. more
D. each
[单项选择]If you want to change for a double room, you'll have to pay ______ $ 15.
A. another
B. other
C. more
D. each
[多项选择] You notice that the elapsed time for an important database scheduler Job is unacceptably long. The job belongs to a scheduler job class and window. Which two actions would reduce the job's elapsed time?（）
A. Increasing the priority of the job class to which the job belongs
B. Increasing the job's relative priority within the Job class to which it belongs
C. Increasing the resource allocation for the consumer group mapped to the scheduler job's job class within the plan mapped to the scheduler window
D. Moving the job to an existing higher priority scheduler window with the same schedule and duration
E. Increasing the value of the JOB_QUEUE_PROCESSES parameter
F. Increasing the priority of the scheduler window to which the job belongs
[单项选择]You should check your answers after you finish the paper.
