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更多“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”相关问题
  • 第1题:

    Which of the following commands should be used to observe the number of system calls per second? ()

    • A、 sar 
    • B、 iostat 
    • C、 svmon 
    • D、 vmstat

    正确答案:D

  • 第2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:A

  • 第3题:

    Which of the following WLM commands should be used to monitor performance on a system running wlm?()

    • A、 wlmcntrl
    • B、 wlmstat
    • C、 wlmcheck
    • D、 wlmassign

    正确答案:B

  • 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:

    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6题:

    单选题
    Which of the following commands should be used to determine DNS name resolution performance?()
    A

     iptrace

    B

     vmstat

    C

     hostname

    D

     ifconfig


    正确答案: A
    解析: 暂无解析

  • 第7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8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9题:

    单选题
    In a three-disk volume group, a disk was physically removed from the system without performing any software procedures to properly remove the disk. Which of the following commands should be performed to recover from this error?()
    A

    extendvg

    B

    cfgmgr

    C

    reducevg

    D

    varyoffvg


    正确答案: C
    解析: 暂无解析

  • 第10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.


    正确答案: B
    解析: 暂无解析

  • 第11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12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

  • 第13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14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15题:

    Which of the following commands should be used to show the percentage of time that any given disk was busy?()

    • A、 ps
    • B、 tprof
    • C、 iostat
    • D、 vmstat

    正确答案:C

  • 第16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 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19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20题:

    单选题
    Which of the following commands should be used to observe the number of system calls per second? ()
    A

     sar 

    B

     iostat 

    C

     svmon 

    D

     vmstat


    正确答案: A
    解析: 暂无解析

  • 第21题:

    单选题
    Which of the following commands should be used to show the percentage of time that any given disk was busy?()
    A

     ps

    B

     tprof

    C

     iostat

    D

     vmstat


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    Which of the following WLM commands should be used to monitor performance on a system running wlm?()
    A

     wlmcntrl

    B

     wlmstat

    C

     wlmcheck

    D

     wlmassign


    正确答案: A
    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 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24题:

    单选题
    A system administrator has a failed disk drive that is mirrored to another disk drive. They successfully removed the logical volume copies off of the failed disk drive. Which of the following commands should be used to remove the failed disk drive from the volume group?()
    A

    chvg

    B

    rmdev

    C

    reducevg

    D

    exportvg


    正确答案: D
    解析: 暂无解析