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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?()AtprofBiostatCsvmonDfilemon

题目
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


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更多“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  tprofB  iostatC  svmonD  filemon”相关问题
  • 第1题:

    Which of the following commands should be used to monitor the number of bytes read on any given disk?()

    • A、 tprof
    • B、 topas
    • C、 filemon
    • D、 vmstat

    正确答案:B

  • 第2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3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4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5题:

    Which of the following commands should be used to show how much data is read from or written to a particular logical volume, given there are several other logical volumes on the same disk?()

    • A、 sar
    • B、 lslv
    • C、 iostat
    • D、 filemon

    正确答案:D

  • 第6题:

    Which of the following commands should be used to monitor the average number of threads in the scheduler’s run queue for any given interval?()

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

    正确答案:C

  • 第7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8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9题:

    多选题
    Full Atomicity, Consistency, Isolation, Durability (ACID) compliance is a necessity for a new application, which heavily reads and writes data. This requires the following config file options: Sync_binlog=1 Innodb_flush_log_at_trx_commit=1 Innodb_doublewrite=1 However, this configuration is expected to introduce disk I/O overhead. What three changes will reduce disk I/O overheads?()
    A

    Use of soft links for database directories on the same physical disk

    B

    Use of delay_key_write=ON for batch index update

    C

    Allocation of RAM to the buffer pool such that more of the data can fit in RAM

    D

    Placement of InnoDB log files and datadir on separate physical disks

    E

    Use of separate directories on the same physical disk for log files and data files


    正确答案: D,E
    解析: 暂无解析

  • 第10题:

    单选题
    Which of the following commands should be used to show how much data is read from or written to a particular logical volume, given there are several other logical volumes on the same disk?()
    A

     sar

    B

     lslv

    C

     iostat

    D

     filemon


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    Which of the following commands should be used to monitor the average number of threads in the scheduler’s run queue for any given interval?()
    A

     tprof

    B

     iostat

    C

     vmstat

    D

     filemon


    正确答案: C
    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 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13题:

    Which of the following utilities will a technician use to determine how many partitions a hard drive has?()

    • A、Administrator Tools
    • B、Disk Management
    • C、Device Manager
    • D、Computer Management

    正确答案:B

  • 第14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15题:

    A disk contains several logical volumes.  Which of the following commands indicates how much data is read from or written to a particular logical volume on the same disk?()

    • A、 sar 
    • 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:

    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18题:

    A customer is experiencing a performance bottleneck.  The server is performing sequential I/O requests with large block sizes of 64KB.  Improving which of the following storage subsystem characteristics has the biggest impact on this bottleneck?()

    • A、Seek Time
    • B、Drive RPM
    • C、Data Transfer Rate
    • D、Rotational Latency

    正确答案:B

  • 第19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20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
    A disk contains several logical volumes.  Which of the following commands indicates how much data is read from or written to a particular logical volume on the same disk?()
    A

     sar 

    B

     iostat 

    C

     svmon 

    D

     filemon


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    Which of the following commands should be used to monitor the number of bytes read on any given disk?()
    A

     tprof

    B

     topas

    C

     filemon

    D

     vmstat


    正确答案: A
    解析: 暂无解析

  • 第24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