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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 user
B
There could be zero percent I/O wait and still be an I/O bottleneck
C
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
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更多 “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” 相关考题
考题
View the exhibit and examine the output.Which statement can be an inference from the output?()
A. The FRA disk group has an asynchronous I/O bottleneckB. The least number of I/Os are performed on the last data file in the listC. The number of times that the backup or restore process directed the OS to wait until an I/O was complete is the highest for the last data file in the listD. The number of times that the backup or restore process made an OS call to poll for I/O completion in Nonblocking mode is the least for the FRA disk group
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 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.
考题
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
In an iostat report， which of the following options best describes the value of % idle？（）A、 A representation of the equation （tps/kbps）*100B、 The percentage of time the disks are idle with no activityC、 The percentage of time the disks are idle with no outstanding CPU requestsD、 The percentage of time the CPU is idle with no outstanding disk I/O requests
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
Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound？（）A、 % idleB、 % sysC、 % userD、 % iowait
考题
Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?（）A、20% B、40% C、60% D、80%
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
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
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
In an iostat report， which of the following options best describes the value of % iowait？（）A、 The amount of time taken to service an I/O interruptB、 The percentage of time CPU（s） are waiting for page insC、 The percentage of time the CPU9（s） are waiting on networkD、 The percentage of time the CPU（s） are waiting for outstanding disk I/O requests
考题
Which statement can be an inference from the output?（）A、The FRA disk group has an asynchronous I/O bottleneckB、The least number of I/Os are performed on the last data file in the listC、The number of times that the backup or restore process directed the OS to wait until an I/O was complete is the highest for the last data file in the listD、The number of times that the backup or restore process made an OS call to poll for I/O completion in Nonblocking mode is the least for the FRA disk group
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In an iostat report， which of the following options best describes the value of % iowait？（）A
The amount of time taken to service an I/O interruptB
The percentage of time CPU（s） are waiting for page insC
The percentage of time the CPU9（s） are waiting on networkD
The percentage of time the CPU（s） are waiting for outstanding disk I/O requests
考题
单选题In an iostat report， which of the following options best describes the value of % idle？（）A
A representation of the equation （tps/kbps）*100B
The percentage of time the disks are idle with no activityC
The percentage of time the disks are idle with no outstanding CPU requestsD
The percentage of time the CPU is idle with no outstanding disk I/O requests
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
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
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 statement can be an inference from the output?（）A
The FRA disk group has an asynchronous I/O bottleneckB
The least number of I/Os are performed on the last data file in the listC
The number of times that the backup or restore process directed the OS to wait until an I/O was complete is the highest for the last data file in the listD
The number of times that the backup or restore process made an OS call to poll for I/O completion in Nonblocking mode is the least for the FRA disk group
考题
单选题Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?（）A
20% B
40% C
60% D
80%
考题
单选题Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound？（）A
% idleB
% sysC
% userD
% iowait
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 timeBIt automates the resource allocation for the Automated Maintenance TasksCIt improves the performance of the performance-critical sessions while runningDIt can be used to estimate the maximum number of I/Os and maximum latency time for the systemEThe latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE
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
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