IBM(000-234)

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?()AtinBtoutC% idleD% tm_act

题目
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

 tin

B

 tout

C

 % idle

D

 % tm_act

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相似问题和答案

第1题:

In an iostat report, which of the following options best describes the value of % tm_act?()

  • A、 The total CPU usage for this drive
  • B、 The bandwidth utilization of the indicated drive
  • C、 It can best be represented by the equation (%iowait - %ioidle)
  • D、 It can best be represented by the equation (kilobytes read/kilobytes written) *100

正确答案:B

第2题:

Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound?()

  • A、 tin
  • B、 tout
  • C、 % idle
  • D、 % tm_act

正确答案:D

第3题:

WhichofthefollowingmetricsprovidedbytheiostatreportisusedtoinitiallydetermineifadiskisI/Obound?()

A.tin

B.tout

C.%idle

D.%tm_act


参考答案:D

第4题:

Which of the following commands can be used to determine if a disk drive is causing a bottleneck?()

  • A、 vmstat 
  • B、 fileplace 
  • C、 iostat 
  • D、 lvmstat

正确答案:C

第5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

正确答案:A

第6题:

In an iostat report, which of the following options best describes the value of % idle?()

  • A、 A representation of the equation (tps/kbps)*100
  • B、 The percentage of time the disks are idle with no activity
  • C、 The percentage of time the disks are idle with no outstanding CPU requests
  • D、 The percentage of time the CPU is idle with no outstanding disk I/O requests

正确答案:D

第7题:

Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound?()

  • A、 % idle
  • B、 % sys
  • C、 % user
  • D、 % iowait

正确答案:D

第8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、 istat
  • B、 topas
  • C、 vmstat
  • D、 filemon

正确答案:B

第9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

正确答案:B

第10题:

In order to determine how efficiently an application is reading and writing data, which of the following utilities will report read and write sizes on disk I/O requests?()

  • A、 tprof
  • B、 iostat
  • C、 svmon
  • D、 filemon

正确答案:D

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