An application writes to a log file in the /logs filesystem that is full. After the log file is deleted，‘df’ still shows the filesystem as 100% full.  What is the likely cause of the problem and what will resolve it？（）A、The deleted file is still open by 

题目

An application writes to a log file in the /logs filesystem that is full. After the log file is deleted，‘df’ still shows the filesystem as 100% full.  What is the likely cause of the problem and what will resolve it？（）

  • A、The deleted file is still open by the application. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
  • B、The deleted file is still open by the application. The application must be stopped before ‘df’ will show the reduction in the filesystem.
  • C、The filesystem is still marked as full in the /etc/fs.status file. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
  • D、The filesystem is still marked as full in the /etc/fs.status file. The application must be stopped before ‘df’ will show the reduction in the filesystem.
相似考题

1.The pen ( ) he writes is a Parker 75.A、with whichB、with whomC、with itD、with what

2.英语“He writes a letter ”中动词writes中的s表示的语法意义是（）A、性B、数C、人称D、格

3.“He writes a letter ”中动词writes中的s表示的语法意义是（）。A、性、数、格B、体、态、时C、数、时、人称D、格、体、时

4.Of all the students in our class, Betty writes（）Avery carefully Bmost carefully Cmore carefullyDthe most carefully

更多“An application writes”相关问题

  • 第1题：

    An application writes to a log file in the /logs filesystem that is full. After the log file is deleted, 'df' still shows the filesystem as 100% full. What is the likely cause of the problem and what will resolve it?（）

    • A、The deleted file is still open by the application.The system must be rebooted before'df' will show the reduction in the filesystem.
    • B、The deleted file is still open by the application.The application must be stoppedbefore 'df' will show the reduction in the filesystem.
    • C、The filesystem is still marked as full in the /etc/fs.status file.The system must be rebooted before 'df' will show the reduction in the filesystem.
    • D、The filesystem is still marked as full in the /etc/fs.status file.The application must be stopped before 'df' will show the reduction in the filesystem.

    正确答案:B

  • 第2题：

    A TCP/IP application is transferring files from a personal machine to a remote machine.  The application writes 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size.  Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

    • A、 Increase the size of thewall
    • B、 Increase the size of sb_max
    • C、 Increase the size of tcp_recvspace
    • D、 Increase the size of tcp_sendspace

    正确答案:D

  • 第3题：

    在建立Application对象的时候会产生哪个事件？（）

    • A、Application_OnStart
    • B、Application_OnEnd
    • C、Application_Start
    • D、Application_End

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

    正确答案:D

  • 第5题：

    As part of fallover testing of a corporate database server， client application connectivity must be  verified. Which of the following would best verify the application functionality？（）  

    • A、 Perform a ping client verification test.
    • B、 Review the number of active application processes.
    • C、 Perform successful reads and writes to the application.
    • D、 Run netstat -an to verify client connections to the listening ports.

    正确答案:C

  • 第6题：

    Which two statements about the background process of the database writer are true（）

    • A、It is possible to have multiple database writers in an Oracle instance.
    • B、It writes dirty buffers， if any， to data files whenever a checkpoint occurs.
    • C、It writes dirty buffers， if any， to data files whenever a transaction commits.
    • D、It writes dirty buffers， if any， to data files before the log writer （LGWR） writes

    正确答案:A,B

  • 第7题：

    You recently installed an application on your computer. The application is configured to automatically start. This application might cause your computer to run slower.  You need to prevent the application from auto starting without uninstalling the application.  What should you do？（）

    • A、Use the Microsoft Windows Task Manager application to end the task for the application.
    • B、Use the Control Panel application to uninstall the application. Reboot the computer.
    • C、Use the Software Explorer application to disable the application. Reboot the computer.
    • D、Use the Services application to disable the Application Experience service， and then launch the application.

    正确答案:C

  • 第8题：

    单选题
    As part of fallover testing of a corporate database server， client application connectivity must be  verified. Which of the following would best verify the application functionality？（）
    A

     Perform a ping client verification test.

    B

     Review the number of active application processes.

    C

     Perform successful reads and writes to the application.

    D

     Run netstat -an to verify client connections to the listening ports.


    正确答案： C
    解析： 暂无解析

  • 第9题：

    多选题
    Which two statements about the background process of thedatabase writerare true（）
    A

    It is possible to have multiple database writers in an Oracle instance.

    B

    It writes dirty buffers， if any， to data files whenever a checkpoint occurs.

    C

    It writes dirty buffers， if any， to data files whenever a transaction commits.

    D

    It writes dirty buffers， if any， to data files before the log writer （LGWR） writes.


    正确答案： D,A
    解析： 数据库写进程(DBWn) 可以将缓冲区的内容写入数据文件。DBWn进程负责将数据库缓冲区高速缓存中经过修改的缓冲区（脏数据缓冲区）写入磁盘。虽然对于大多数系统来说，一个数据库写进程(DBW0) 已经足够，但如果系统需要频繁修改数据，则可以配置附加进程（DBW1到DBW9以及DBWa到DBWj）以改进写性能（A正确，可以有很多个dbwr进程）。这些附加DBWn进程在单处理器系统中没有用。 
    当数据库缓冲区高速缓存中的某个缓冲区被修改时，系统会将其标记为脏数据缓冲区，并将其添加到按SCN 顺序存放的灰数据缓冲区的LRUW（LRU 写）列表中。因此，该顺序与为这些更改的缓冲区写入重做日志的重做操作的顺序相匹配。当缓冲区高速缓存中的可用缓冲区的数量低于某个内部阈值（达到服务器进程发现很难获取可用缓冲区的程度）时，DBWn会将灰数据缓冲区写入数据文件，写入顺序与按照LRUW 列表的顺序修改灰数据缓冲区的顺序相同。 SGA 包含的内存结构具有重做流中的某个位置的重做字节地址(RBA)，当实例发生故障时，将从该位置开始恢复。此结构充当指向重做的指针，并且由CKPT 进程按照每三秒一次的频率写入控制文件。由于DBWn按照SCN 顺序写入灰数据缓冲区，而重做按照SCN 顺序执行，因此每当DBWn从LRUW 列表写脏数据缓冲区时，还会将SGA 内存结构中保持的指针前移，以便实例恢复（如果需要）从近似正确的位置开始读取重做，并避免不需要的I/O。这称为―增量检查点‖。 
    注：还有其它一些DBWn可能会执行写操作的情况，例如，当表空间被设置为只读或被置于脱机状态时。在这些情况下，不会出现增量检查点，因为仅属于相应数据文件的灰数据缓冲区在写入数据库时的顺序与SCN 顺序无关。 
    LRU 算法将更频繁访问的块保存在缓冲区高速缓存中，这样，在将缓冲区写入磁盘时，缓冲区不大可能包含将很快有用的数据。 
    DB_WRITER_PROCESSES初始化参数指定DBWn进程数。DBWn进程的最大数目为20。 
    如果用户在启动过程中未指定该进程数，Oracle DB 将根据CPU 和处理器组的数量来决定如何设置DB_WRITER_PROCESSES。 
    在以下情况下，DBWn进程将脏数据缓冲区写入磁盘： 
    • 当服务器进程在扫描阈值数目的缓冲区之后找不到干净的可重用缓冲区时，通知DBWn执行写操作。DBWn在执行其它处理的同时，将灰数据缓冲区异步写入磁盘。 
    •DBWn定期写缓冲区以推进检查点。检查点是重做线程（日志）中开始执行实例恢复的位置。该日志位置由缓冲区高速缓存中最旧的脏数据缓冲区确定。 
    在所有情况下，DBWn均执行成批（多块）写操作以提高效率。多块写操作中写入的块数因操作系统而异。 C答案：是LGWR进程 
    D答案：LGWR先记，DBWR后写。 
    LGWR 的写入速度通常足够快，可以确保缓冲区中始终有空间可供新条目使用，即使对重做日志的访问量很大时也是如此。LGWR 将缓冲区的一个连续部分写入磁盘。 LGWR 在以下情况下执行写操作： • 用户进程提交事务处理时 
    • 重做日志缓冲区的三分之一已满时 • 重做日志缓冲区达到1M的redo条目 
    • 在DBWn进程将经过修改的缓冲区写入磁盘（如果需要）之前 • 每隔3 秒 
    必须在与缓冲区更改相关联的所有重做记录写入磁盘后，DBWn才可以向磁盘写入经过修改的缓冲区（先行写协议）。

  • 第10题：

    单选题
    A TCP/IP application is transferring files from a personal machine to a remote machine.  The application writes 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size.  Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）
    A

     Increase the size of thewall

    B

     Increase the size of sb_max

    C

     Increase the size of tcp_recvspace

    D

     Increase the size of tcp_sendspace


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    An application writes to a log file in the /logs filesystem that is full. After the log file is deleted, 'df' still shows the filesystem as 100% full. What is the likely cause of the problem and what will resolve it?（）
    A

    The deleted file is still open by the application.The system must be rebooted before'df' will show the reduction in the filesystem.

    B

    The deleted file is still open by the application.The application must be stoppedbefore 'df' will show the reduction in the filesystem.

    C

    The filesystem is still marked as full in the /etc/fs.status file.The system must be rebooted before 'df' will show the reduction in the filesystem.

    D

    The filesystem is still marked as full in the /etc/fs.status file.The application must be stopped before 'df' will show the reduction in the filesystem.


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    英语“He writes a letter”中动词writes中的s表示的语法意义是（）。
    A

    性 数 格

    B

    体 态 时

    C

    数 时 人称

    D

    格 体 时


    正确答案： B
    解析： 暂无解析

  • 第13题：

    You are analyzing the components of the redo log mechanisms in your Oracle database. Which of the following purposes does the CKPT process serve?（）

    • A、Writes buffers to disk 
    • B、Writes current redo log number to datafile headers 
    • C、Writes redo log information to disk 
    • D、Reads information into memory for users

    正确答案:B

  • 第14题：

    Which statement is true about item records and inventory management？ （）

    • A、 With IBM Maximo Asset Management V6.2 （IMAM）， item records are created in the Item Master application， and storeroom records are created in the Storerooms application， but inventory is managed in the Inventory application.
    • B、 With IMAM， item records are created in the Storerooms application， and storeroom records are created in the Inventory application， but inventory is managed in the Inventory application.
    • C、 With IMAM， item records are created in the Inventory application， and storeroom records are created in the Item Master application， and inventory is managed in the Item Master application.
    • D、 With IMAM， item records are created in the Inventory application， and storeroom records are created in the Storerooms application， but inventory is managed in the Item Master application.

    正确答案:A

  • 第15题：

    英语“He writes a letter”中动词writes中的s表示的语法意义是（）。

    • A、性 数 格
    • B、体 态 时
    • C、数 时 人称
    • D、格 体 时

    正确答案:C

  • 第16题：

    The WebSphere Commerce Payments architecture includes a Payment Servlet and a Payment Engine. The Payment Engine is the ONLY component that：（）

    • A、writes payment information to the database
    • B、relays incoming HTTP requests
    • C、writes payment information to the HTTP server
    • D、maps authenticated users to merchant roles

    正确答案:A

  • 第17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18题：

    Which two statements about the background process of thedatabase writerare true（） 

    • A、It is possible to have multiple database writers in an Oracle instance.
    • B、It writes dirty buffers， if any， to data files whenever a checkpoint occurs.
    • C、It writes dirty buffers， if any， to data files whenever a transaction commits.
    • D、It writes dirty buffers， if any， to data files before the log writer （LGWR） writes.

    正确答案:A,B

  • 第19题：

    You develop a Web application that writes data to a file on a server. You restrict access to the file to specific Windows users. The Web application runs as CONTOSO/ASPNET. You deny anonymous access to the application in IIS. You add the following XML segment in the Web.config file.You need to ensure that the application meets the following requirements:It must impersonate the user when it writes data to the file.It must run as CONTOSO/ASPNET when a user does not access the file. Which two actions should you perform? （）

    • A、Use the following XML segment in the Web.config file. <identity impersonate="false"/>
    • B、Use the following XML segment in the Web.config file. <identity impersonate="true"/>
    • C、Use the following code segment to access the file. Dim wp As WindowsPrincipal = _CType(HttpContext.Current.User, WindowsPrincipal) Dim wi As WindowsIdentity = WindowsIdentity.GetCurrent() Dim wic As WindowsImpersonationContext = wi.Impersonate()' Access the file herewic.Undo()
    • D、Use the following code segment to access the file. Dim wi As WindowsIdentity = WindowsIdentity.GetCurrent()Dim wic As WindowsImpersonationContext = _WindowsIdentity.Impersonate(wi.Token)' Access the file herewic.Undo()

    正确答案:A,C

  • 第20题：

    填空题
    What is the purpose of the letter?Lourdes Santiago writes the letter to ask for ____.

    正确答案： an interview
    解析：
    推断题。本题设问这封信的目的。根据题干和给出的部分答案可知，在信件中，写信人分别介绍了自己的实习情况，自己在该公司学习到的东西，最后还提到了他可以随时接受面试，由此可知他写这封信的目的是求得面试机会。此处应填an interview。

  • 第21题：

    多选题
    Which two statements about the background process of the database writer are true（）
    A

    It is possible to have multiple database writers in an Oracle instance.

    B

    It writes dirty buffers， if any， to data files whenever a checkpoint occurs.

    C

    It writes dirty buffers， if any， to data files whenever a transaction commits.

    D

    It writes dirty buffers， if any， to data files before the log writer （LGWR） writes


    正确答案： D,B
    解析： 暂无解析

  • 第22题：

    单选题
    Which background process reads the redo log buffer and writes it to a file？（）
    A

    ARCn

    B

    DBWn

    C

    CKPT

    D

    LGWR

    E

    PMON

    F

    SMON


    正确答案： F
    解析： 暂无解析

  • 第23题：

    单选题
    英语“He writes a letter ”中动词writes中的s表示的语法意义是（）
    A

    性

    B

    数

    C

    人称

    D

    格


    正确答案： D
    解析： 暂无解析

  • 第24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

相关内容