单选题Sometimes performance is more important than availability (e.g., in cases where the data can be easily re-created).  Which of the following is the appropriate disk configuration for an application that requires faster writes over availability()A RAID 1

题目
单选题
Sometimes performance is more important than availability (e.g., in cases where the data can be easily re-created).  Which of the following is the appropriate disk configuration for an application that requires faster writes over availability()
A

RAID 1

B

RAID 6

C

RAID 0 + 1

D

RAID 0


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更多“单选题Sometimes performance is more important than availability (e.g., in cases where the data can be easily re-created).  Which of the following is the appropriate disk configuration for an application that requires faster writes over availability()A RAID 1”相关问题
  • 第1题:

    Which of the following is an advantage of hardware RAID over software RAID?()

    • A、Hardware RAID costs less than software RAID
    • B、Hardware RAID is built into the operating system’s software
    • C、Hardware RAID has better performance than software RAID
    • D、Hardware RAID requires no configuration and software RAID does

    正确答案:C

  • 第2题:

    Sometimes performance is more important than availability (e.g., in cases where the data can be easily re-created).  Which of the following is the appropriate disk configuration for an application that requires faster writes over availability()

    • A、RAID 1
    • B、RAID 6
    • C、RAID 0 + 1
    • D、RAID 0

    正确答案:D

  • 第3题:

    Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring?()

    • A、 RAID 0
    • B、 RAID 1
    • C、 RAID 3
    • D、 RAID 5

    正确答案:A

  • 第4题:

    Sometimes performance is more important than availability (e.g., in cases where the data can be easily re-created). Which of the following is the appropriate disk configuration for an application that requires faster writes over availability?()

    • A、RAID-1
    • B、RAID-5
    • C、RAID-0+1
    • D、RAID-0

    正确答案:D

  • 第5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:B,C,D

  • 第6题:

    单选题
    When setting up schedules and enforcing scheduling of different types of workloads, which of the following are critical performance issues?()
    A

     Disk fragmentation

    B

     Performance results analysis

    C

     Capacity forecasting and planning

    D

     Resource contention and availability


    正确答案: B
    解析: 暂无解析

  • 第7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8题:

    单选题
    An application server is running slowly. After viewing performance monitoring data it is detected that the disk queue length is high.  Which of the following could BEST resolve the situation?()
    A

     Add more disk drives.

    B

     Increase the amount of virtual memory.

    C

     Add a faster processor.

    D

     Add more memory to stop paging to disk.


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    Which of the following describes the difference between hardware and software RAID technologies?()
    A

    Software RAID offers more storage possibilities than hardware RAID

    B

    Hardware RAID performs faster than software RAID

    C

    Hardware RAID is less expensive than software RAID

    D

    Software RAID volumes are compatible with any OS and hardware RAID volumes are not


    正确答案: B
    解析: 暂无解析

  • 第10题:

    单选题
    Which of the following is the correct configuration for a RAID 5 array?()
    A

    A two disk set with one data strip

    B

    A three disk set with two data strips and a parity strip

    C

    A two disk set with two data strips

    D

    A four disk set with two sets of data strips


    正确答案: B
    解析: 暂无解析

  • 第11题:

    单选题
    Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring?()
    A

     RAID 0

    B

     RAID 1

    C

     RAID 3

    D

     RAID 5


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    An application server is running slowly. After viewing performance monitoring data it is detected that the disk queue length is high. Which of the following could BEST resolve the situation?()
    A

    Add more disk drives.

    B

    Increase the amount of virtual memory.

    C

    Add a faster processor.

    D

    Add more memory to stop paging to disk.


    正确答案: B
    解析: 暂无解析

  • 第13题:

    A banking customer is confused about RAID protection. Which of the following are characteristic of RAID-6?()

    • A、Double drive failure in an array and extremely high data fault tolerance
    • B、Double drive failure in an array and more total storage capacity than RAID-5
    • C、Extremely high data fault tolerance and higher performance than RAID-5
    • D、Higher performance than RAID-5 and more total storage capacity than RAID-5

    正确答案:C

  • 第14题:

    Which of the following disk protection methods would be used to provide the maximum amount of data  availability()

    • A、RAID 0
    • B、RAID 1
    • C、RAID 3
    • D、RAID 5

    正确答案:B

  • 第15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16题:

    When setting up schedules and enforcing scheduling of different types of workloads, which of the following are critical performance issues?()

    • A、 Disk fragmentation
    • B、 Performance results analysis
    • C、 Capacity forecasting and planning
    • D、 Resource contention and availability

    正确答案:D

  • 第17题:

    You have an Exchange Server 2010 organization. You plan to deploy two new Mailbox servers.  Both Mailbox servers will be members of a database availability group (DAG). You need to recommend a hard-disk configuration for the new servers. Your recommendation must meet the following requirements:.Maximize write performance .Prevent a switchover if a single disk fails Which disk configuration should you recommend?()

    • A、RAID 0 array
    • B、RAID 1 array
    • C、RAID 5 array
    • D、RAID 10 array

    正确答案:D

  • 第18题:

    单选题
    Which of the following disk protection methods would be used to provide the maximum amount of data  availability()
    A

    RAID 0

    B

    RAID 1

    C

    RAID 3

    D

    RAID 5


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    Which of the following is an advantage of hardware RAID over software RAID?()
    A

    Hardware RAID costs less than software RAID

    B

    Hardware RAID is built into the operating system’s software

    C

    Hardware RAID has better performance than software RAID

    D

    Hardware RAID requires no configuration and software RAID does


    正确答案: A
    解析: 暂无解析

  • 第20题:

    单选题
    A banking customer is confused about RAID protection. Which of the following are characteristic of RAID-6?()
    A

    Double drive failure in an array and extremely high data fault tolerance

    B

    Double drive failure in an array and more total storage capacity than RAID-5

    C

    Extremely high data fault tolerance and higher performance than RAID-5

    D

    Higher performance than RAID-5 and more total storage capacity than RAID-5


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    Sometimes performance is more important than availability (e.g., in cases where the data can be easily re-created). Which of the following is the appropriate disk configuration for an application that requires faster writes over availability?()
    A

    RAID-1

    B

    RAID-5

    C

    RAID-0+1

    D

    RAID-0


    正确答案: A
    解析: 暂无解析

  • 第22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23题:

    单选题
    The statistics for a poorly performing x366 system are as follows:      (1)Processor: 90% for 5 second increments   (2)Memory page faults: 20/second average over 15 minutes      (3)Disk: disk time 1%  Which of the following will provide the greatest performance improvement?()
    A

    Add memory

    B

    Add a processor

    C

    Add a faster disk subsystem

    D

    Exchange the processor with a faster processor


    正确答案: B
    解析: 暂无解析