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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更多“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”相关问题
  • 第1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2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3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4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

    正确答案:D

  • 第5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 interrupt
    • B、 The percentage of time CPU(s) are waiting for page ins
    • C、 The percentage of time the CPU9(s) are waiting on network
    • D、 The percentage of time the CPU(s) are waiting for outstanding disk I/O requests

    正确答案:D

  • 第6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

     istat

    B

     topas

    C

     vmstat

    D

     filemon


    正确答案: B
    解析: 暂无解析

  • 第7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 interrupt

    B

     The percentage of time CPU(s) are waiting for page ins

    C

     The percentage of time the CPU9(s) are waiting on network

    D

     The percentage of time the CPU(s) are waiting for outstanding disk I/O requests


    正确答案: A
    解析: 暂无解析

  • 第8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

     filemon

    B

     istat

    C

     vmstat

    D

     iostat


    正确答案: A
    解析: 暂无解析

  • 第9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

     CPU

    B

     Memory

    C

     Disk I/O

    D

     Network I/O


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    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: A
    解析: 暂无解析

  • 第11题:

    单选题
    A user calls to report they are getting I/O errors on a file system. Which of the following tools should be used to isolate this problem?()
    A

    df

    B

    diagrpt

    C

    errmsg

    D

    errpt


    正确答案: B
    解析: 暂无解析

  • 第12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

     tin

    B

     tout

    C

     % idle

    D

     % tm_act


    正确答案: A
    解析: 暂无解析

  • 第13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14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15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

  • 第16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、 filemon
    • B、 istat
    • C、 vmstat
    • D、 iostat

    正确答案:D

  • 第17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

    CPU

    B

    Memory

    C

    Paging space

    D

    Disk capacityX


    正确答案: A
    解析: 暂无解析

  • 第18题:

    单选题
    Which of the following commands should be used to determine whether a logical volume is contiguous across a disk?()
    A

     lslv

    B

     lsfs

    C

     lspv

    D

     fileplace


    正确答案: C
    解析: 暂无解析

  • 第19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)*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
    解析: 暂无解析

  • 第20题:

    单选题
    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
    解析: 暂无解析

  • 第21题:

    单选题
    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: C
    解析: 暂无解析

  • 第22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 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: C
    解析: 暂无解析

  • 第23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

     % idle

    B

     % sys

    C

     % user

    D

     % iowait


    正确答案: D
    解析: 暂无解析

  • 第24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, VHDCI

    B

     Disk size, distance, temperature, and compatibility

    C

     Disk fragmentation, MTBF, and maintenance

    D

     Disk configuration, throughput, transactions, queues, and latencies


    正确答案: D
    解析: 暂无解析