Incremental design理解为（ ）？

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• To enable faster incremental backups, you enabled block change tracking for the database.Which two statements are true about the block change tracking file?（）

  A . Multiple change tracking files can be created for a database. B . The change tracking file must be created after the first level 0 backup. C . RMAN does not support backup and recovery of the change tracking file. D . The database clears the change tracking file and starts tracking changes again, after whole database restore and recovery operations.

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• You work as a database administrator for Certkiller .com. According to your backup strategy， you performed an incremental level 0 backup of your database. Which statement regarding this backup is true？（）

  A . The backup is similar to image copy. B . The backup contains all used data blocks. C . The backup contains only unused data blocks. D . The backup contains all data blocks changed since the last incremental level 1 backup.

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• 您最近从每周的周一到周五都进行Incremental（增量）备份，周五晚上进行完全备份。由于周三的紧急情况，您需要对从早上以来改变的数据进行另外一次备份。为确保周三将要做为备份不会改变日常备份的设置，您应选择哪种备份类型（）

  A . A.普通备份 B . B.增量备份 C . C.差异备份 D . D.复制备份

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• Which two design concerns must be addressed when designing a multicast implementation?（）

  A . only the low-order 23 bits of the MAC address are used to map IP addresses B . only the low-order 24 bits of the MAC address are used to map IP addresses C . only the high-order 23 bits of the MAC address are used to map IP addresses D . only the low-order 23 bits of the IP address are used to map MAC addresses E . the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses F . the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresse

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• Which type of backup contains only the blocks that have changed since the last level 0 incremental backup?（）

  A . a cumulative level 1 backup B . a differential level 1 backup C . a full backup D . a whole backu

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• According to your backup strategy， you performed an incremental level 0 backup of your database. Which statement regarding this backup is true？（）

  A . The backup is similar to image copy. B . The backup contains all used data blocks. C . The backup contains only unused data blocks. D . The backup contains all data blocks changed since the last incremental level 1 backup.

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• Which type of backup contains only the blocks that have changed since the last level 0 incremental backup？（）  

  A .  a cumulative level 1 backup B .  a differential level 1 backup C .  a full backup D .  a whole backu

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• To enable faster incremental backups, you enabled block change tracking for the database.Which two statements are true about the block change tracking file? （）(Choose two.)

  A . Multiple change tracking files can be created for a database. B . The change tracking file must be created after the first level 0 backup. C . RMAN does not support backup and recovery of the change tracking file. D . The database clears the change tracking file and starts tracking changes again, after whole database restore and recovery operations.

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• You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays， to tape.  Which two statements are true about differential incremental backups（）

  A . The backup performed on Sundays contains all the blocks that have ever been used in the database. B . The backup performed on Sundays contains all the blocks that have changed since the last level 1backup.  C . The backup performed on each working day contains all the blocks that have changed since the lastlevel 0 backup. D . The backup performed on Monday contains all the blocks that have changed since the level 0 backup，and every other working day contains all the blocks that have changed since the level 1 backup.

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• To enable faster incremental backups， you enabled block change tracking for the database. Which two statements are true about the block change tracking file？（） 

  A .  Multiple change tracking files can be created for a database. B .  The change tracking file must be created after the first level 0 backup. C .  RMAN does not support backup and recovery of the change tracking file. D .  The database clears the change tracking file and starts tracking changes again，after whole database restore and recovery operations.

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• You perform differential incremental level 1 backups of your database on each working day and level 0 backupon Sundays， to tape. Which two statements are true about differential incremental backups（）

  A . The backup performed on Sundays contains all the blocks that have ever been used in the database. B . The backup performed on Sundays contains all the blocks that have changed since the last level 1 backup. C . The backup performed on each working day contains all the blocks that have changed since the last level 0 backup. D . The backup performed on Monday contains all the blocks that have changed since the level 0 backup， and every other working day contains all the blocks that have changed since the level 1 backu

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• On which three can you use Recovery Manager （RMAN） to perform incremental backup？（）

  A . data files B . control files C . tablespaces D . password file E . parameter file F . whole database G . flashback log file H . archived log files I . change tracking file

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• 当正在使用DESIGN软件工作时，意外的断电使电脑重新启动了，当重新运行INDESIGN时恢复文档自动出现，可是恢复文档和断电前保存版本不同，此时如果希望恢复为原先保存时的状态，应该怎么做？（）

  A . 不保存当前文档，直接关闭 B . 从菜单中选择“布局﹥返回（LAYOUT﹥GOBACK）”命令 C . 从菜单中选择“文本﹥恢复（FILE﹥REVERT）”命令 D . 从菜单中选择“编辑﹥撤销（EDIT﹥UNDO）”命令

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• Which two design concerns must be addressed when designing a multicast implementation？（）

  A . only the low-order 23 bits of the MAC address are used to map IP addresses B . only the low-order 24 bits of the MAC address are used to map IP addresses C . only the high-order 23 bits of the MAC address are used to map IP addresses D . only the low-order 23 bits of the IP address are used to map MAC addresses E . the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses F . the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresse

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• Which type of backup must be performed first with an incremental backup？（）

  A .  Level 1 B .  Level 0 C .  Level 2 D .  Level 3

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• You enabled block change tracking for faster incremental backups in your database. Which background process writes to the change tracking file？（）

  A .  RBAL B .  CKPT C .  SMON D .  PMON E .  MMON F .  CTWR G .  DBWR

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• One way to avoid patchwork plagiarism or incremental plagiarism when working with the Internet is to __________.

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• Radical design理解为（ ）？

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• 8、请判断该句翻译是否正确： If a designer were to design a bracket to support 100 lb. when it should have been figured for 1000 lb., failure would be forthcoming. 如果设计者所设计的托架能支撑100磅，当它被设计为1000磅时，事故一定会出现。

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• 查理兹和罗杰斯在他们所著的《语言教学的途径和方法》中，把构成各种教学方法的组成部分描述为___、设计(Design)和步骤(Procedures)。

  A.“观点”(Approaches) B.大纲(Syllabus) C.教学活动(Activities) D.师生角色(Teacher and student roles )

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• Flowcharting is used primarily for program design and rarely for systems design.（)

  是 否

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• The designer's work is based on______.

  A．the ground tests B．the stress man's calculations C．the flight tests D．all of the above

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• STP为每个网段选出一个指定端口（Designated Port），指定端口为每个网段转发发往根交换机方向的数据，并且转发由根交换机方向发往该网段的数据（）

  是 否

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• 1、CAD就是（）的英文缩写，其英文全程为：Computer Aided Design，简称为CAD。

  A．计算机辅助设计 B．计算机辅助制造 C．计算机辅助工程 D．计算机应用技术

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