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单选题
When the length of the run queues， process or thread dispatches interrupts， and lock contention metrics and statistics are analyzed for performance， which of the following resources is being analyzed？（）
A
CPU
B
Memory
C
Disk I/O
D
Network I/O
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更多 “单选题When the length of the run queues， process or thread dispatches interrupts， and lock contention metrics and statistics are analyzed for performance， which of the following resources is being analyzed？（）A CPUB MemoryC Disk I/OD Network I/O” 相关考题
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Which three statements correctly describe the features of the I／O calibration process?()
A. Only one I/O calibration process can run at a time.B. It automates the resource allocation for the Automated Maintenance Tasks.C. It improves the performance of the performance-critical sessions while running.D. It can be used to estimate the maximum number of I/Os and maximum latency time for the system.E. The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE.
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Which of the following phases assesses the current network infrastructure of a customer（）A、PrepareB、PlanC、AnalyzeD、Design
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Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem？（）A、 istatB、 topasC、 vmstatD、 filemon
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You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（）A、The baseline， once created， cannot be removed.B、Disable the baseline metrics in the Database Control Manage Metrics page.C、The baseline will be automatically removed once the database performance has been optimized.D、Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.
考题
Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound？（）A、 tinB、 toutC、 % idleD、 % tm_act
考题
When the length of the run queues， process or thread dispatches interrupts， and lock contention metrics and statistics are analyzed for performance， which of the following resources is being analyzed？（）A、 CPUB、 MemoryC、 Disk I/OD、 Network I/O
考题
Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）A、 The iostat can only be run as the root userB、 There could be zero percent I/O wait and still be an I/O bottleneckC、 Any I/O wait time displayed in output of "iostat" is an indication of severe I/O bottlenecks D、 Running "iostat" without any arguments/parameters is sufficient for resolving I/O bottlenecks
考题
When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（）A、 Disk size， stock availability， VHDCIB、 Disk size， distance， temperature， and compatibilityC、 Disk fragmentation， MTBF， and maintenanceD、 Disk configuration， throughput， transactions， queues， and latencies
考题
Which of the following commands gathers network packet statistics？（）A、netstat -iB、ifconfig -aC、errpt -aD、iptrace -i
考题
Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）A、 filemonB、 istatC、 vmstatD、 iostat
考题
When setting up schedules and enforcing scheduling of different types of workloads， which of the following are critical performance issues？（）A、 Disk fragmentationB、 Performance results analysisC、 Capacity forecasting and planningD、 Resource contention and availability
考题
Which system resources does WLM have the capability to control?（）A、 CPU, Memory and Network I/O B、 CPU, Memory and Disk I/O C、 CPU and Memory D、 CPU and Disk I/O
考题
You work as a database administrator for Supportcenter.cn. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metrics to achieve your objective？（）A、Save the baseline in the databaseB、Save the baseline in the Database Control Home PageC、Create a procedure to read and apply the baseline to disk I/O metricsD、Apply the baseline to the disk I/O metrics in the Mange Metrics pageE、Alter the disk I/O metrics to include baseline by using the ALTER METRICScommnd
考题
Which three statements correctly describe the features of the I/O calibration process？（）A、 Only one I/O calibration process can run at a timeB、 It automates the resource allocation for the Automated Maintenance TasksC、 It improves the performance of the performance-critical sessions while runningD、 It can be used to estimate the maximum number of I/Os and maximum latency time for the systemE、 The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE
考题
单选题A system administrator ran the iostat command because of system performance problems. The following iostat output is provided： Based on the output， which of the following is insufficient？（）A
CPUB
MemoryC
Paging spaceD
Disk capacityX
考题
单选题Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem？（）A
istatB
topasC
vmstatD
filemon
考题
单选题When setting up schedules and enforcing scheduling of different types of workloads， which of the following are critical performance issues？（）A
Disk fragmentationB
Performance results analysisC
Capacity forecasting and planningD
Resource contention and availability
考题
单选题Which of the following commands gathers network packet statistics？（）A
netstat -iB
ifconfig -aC
errpt -aD
iptrace -i
考题
单选题Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）A
filemonB
istatC
vmstatD
iostat
考题
单选题Which system resources does WLM have the capability to control?（）A
CPU, Memory and Network I/O B
CPU, Memory and Disk I/O C
CPU and Memory D
CPU and Disk I/O
考题
多选题Which three statements correctly describe the features of the I/O calibration process?（）AOnly one I/O calibration process can run at a time.BIt automates the resource allocation for the Automated Maintenance Tasks.CIt improves the performance of the performance-critical sessions while running.DIt can be used to estimate the maximum number of I/Os and maximum latency time for the system.EThe latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE.
考题
单选题You work as a database administrator for Supportcenter.cn. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metrics to achieve your objective？（）A
Save the baseline in the databaseB
Save the baseline in the Database Control Home PageC
Create a procedure to read and apply the baseline to disk I/O metricsD
Apply the baseline to the disk I/O metrics in the Mange Metrics pageE
Alter the disk I/O metrics to include baseline by using the ALTER METRICScommnd
考题
单选题Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）A
The iostat can only be run as the root userB
There could be zero percent I/O wait and still be an I/O bottleneckC
Any I/O wait time displayed in output of iostat is an indication of severe I/O bottlenecks D
Running iostat without any arguments/parameters is sufficient for resolving I/O bottlenecks
考题
单选题Which of the following statements is mot correct about mirroring?（）A
Mirroring, with the write-verify option turned on, can be used to increase performance.B
Mirroring is a better choice that disk-striping, for large sequential-access file system when one is looking for performance.C
Mirroring, with a parallel-scheduling policy, may improve I/O read-operation performance.D
Mirroring, with maximum inter-disk allocation policy, is used to enhance availability.
考题
单选题You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（）A
The baseline， once created， cannot be removed.B
Disable the baseline metrics in the Database Control Manage Metrics page.C
The baseline will be automatically removed once the database performance has been optimized.D
Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.
考题
单选题Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound？（）A
tinB
toutC
% idleD
% tm_act
考题
单选题When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（）A
Disk size， stock availability， VHDCIB
Disk size， distance， temperature， and compatibilityC
Disk fragmentation， MTBF， and maintenanceD
Disk configuration， throughput， transactions， queues， and latencies
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