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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， VHDCI
B
Disk size， distance， temperature， and compatibility
C
Disk fragmentation， MTBF， and maintenance
D
Disk configuration， throughput， transactions， queues， and latencies
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更多 “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” 相关考题
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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
All of the following are attributes that can be specified when creating a logical volume EXCEPT:（）A、Number of logical partitionsB、Disk where logical volume will resideC、Size of the logical volume control blockD、Position of the logical volume on the disk
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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
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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
A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available： （1）The average record written to disk is 16KB （2）The I/O block size is 2KB （3）The stripe size on the RAID array is 16KB Which of the following will improve performance without rebuilding the operating system？（）A、Change the I/O block size to match the RAID Stripe size.B、Change the RAID stripe size to match the I/O block size.C、Change the record size of the database to match the RAID stripe size.D、Change the record size of the database to match the I/O transfer rate.
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 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
An administrator is ordering a new Power 550. They will mirror rootvg and are concerned about single points of failure. Which of the following features should be ordered（）A、Dual I/O planar， dual disk drives， dual SCSI adaptersB、Dual disk drive enclosures， dual disk drives， extra media bayC、Dual disk drive enclosures， dual disk drives and dual SCSI adaptersD、Dual I/O planar， extra media bay， dual disk drives
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
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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
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
You need to create a virtual hard disk (VHD) file that will be used to deploy Windows 7. The solution mustminimize the performance impact caused by using a VHD. Which type of VHD should you create?（）A、differencing disk.B、dynamically expanding disk.C、fixed-size disk.D、snapshot.
考题
A System p administrator is looking at changing attributes of a logical volume. Which of the following must be defined when it is created（）A、placement of the logical volumeB、stripe size of the logical volumeC、inter-disk policy of the logical volumeD、intra-disk policy of the logical volume
考题
Which of the following options will allow you to increase the size of a thin provisioned disk in Windows Server 2012 R2？（）A、You should add a new hard disk to the storage pool，extend the disk in File and Storage Services.B、You should mount a new volume on the storage pool in File and Storage Services.C、You should convert the disk to a dynamic disk in Computer Management.D、You should convert the disk to a dynamically expanding virtual hard disk （VHD）.E、You should detach the disk in File and Storage Services and increase its size.
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 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
单选题Which of the following options will allow you to increase the size of a thin provisioned disk in Windows Server 2012 R2？（）A
You should add a new hard disk to the storage pool，extend the disk in File and Storage Services.B
You should mount a new volume on the storage pool in File and Storage Services.C
You should convert the disk to a dynamic disk in Computer Management.D
You should convert the disk to a dynamically expanding virtual hard disk （VHD）.E
You should detach the disk in File and Storage Services and increase its size.
考题
单选题You need to create a virtual hard disk (VHD) file that will be used to deploy Windows 7. The solution mustminimize the performance impact caused by using a VHD. Which type of VHD should you create?（）A
differencing disk.B
dynamically expanding disk.C
fixed-size disk.D
snapshot.
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 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A System p administrator is looking at changing attributes of a logical volume. Which of the following must be defined when it is created（）A
placement of the logical volumeB
stripe size of the logical volumeC
inter-disk policy of the logical volumeD
intra-disk policy of the logical volume
考题
单选题An administrator is ordering a new Power 550. They will mirror rootvg and are concerned about single points of failure. Which of the following features should be ordered？（）A
Dual I/O planar， dual disk drives， dual SCSI adaptersB
Dual disk drive enclosures， dual disk drives， extra media bayC
Dual disk drive enclosures， dual disk drives and dual SCSI adaptersD
Dual I/O planar， extra media bay， dual disk drives
考题
单选题A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available： （1）The average record written to disk is 16KB （2）The I/O block size is 2KB （3）The stripe size on the RAID array is 16KB Which of the following will improve performance without rebuilding the operating system？（）A
Change the I/O block size to match the RAID Stripe size.B
Change the RAID stripe size to match the I/O block size.C
Change the record size of the database to match the RAID stripe size.D
Change the record size of the database to match the I/O transfer rate.
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