OracleDBA逻辑备份试题选


作者:天涯共此时 | 来源:虚海教育 | 日期:07-13 | 字体: [ ]

本文简介:what option of export utility allows for faster extraction of data

q. 1 : what option of exporting allows quicker data extractions

  1. grants =y
  2. consistent =y
  3. direct = true
  4. direct=y

  4 : direct=y option bypasses the sql layer to allow quicker data extractions

  q. 2 : how are exports useful ?

  1. can be used to recover to a point in time
  2. can be used to recover from a media failure
  3. can be used to recover dropped tables due a user error
  4. none of the above

  q. 3 : what are the 3 levels of exports

  1. global, user, tablespace
  2. full, user, table
  3. full, tablespace, table
  4. global, local, transactional

  q. 4 : the following methods can be used to run exports

  1. interactive dialog
  2. export section of data manager in oem
  3. command line interface with parameter file
  4. all of the above

    q. 5 : which of the following are valid parameters for an export utility

  1. log
  2. statistics
  3. direct
  4. all of the above

    q. 6 : what incremental parameters can be used with exports

  1. inctype = complete
  2. inctype = cumulative
  3. inctype = incremental
  4. all of the above

  q. 7 : what can you do to reduce the burden on a rollback segment during the import of a large table

  1. assign a large rollback segment
  2. set transaction use rollback segment rbslarge
  3. commit=y
  4. none of the above

  q. 8 : what is an incremental export

  1. export of the objects that have changed since last export
  2. export of rows that have changed since last export
  3. incremental exports cannot be performed in oracle
  4. none of the above

  q. 9 : an incremental export is a good strategy for

  1. applications with few large tables and less data changes
  2. applications where changes are scattered across small tables
  3. all of the above
  4. none of the above

  q. 10 : what is a cumulative export

  1. export of the objects that have changed since last export
  2. export of objects that have changed since last cumulative or complete export
  3. export or rows that have changed since last cumulative or complete export
  4. none of the above

  q. 11 : what option of export utility allows for faster extraction of data

  1. full=y
  2. direct=y
  3. sql=n
  4. all of the above

  q. 12 : why is direct path export faster

  1. this option by passes the sql layer
  2. all sga is used for export
  3. all of the above
  4. none of the above




用户名: 新注册) 密码: 匿名评论 [所有评论]

评论内容:(不能超过250字,需审核后才会公布,请自觉遵守互联网相关政策法规。
  • Oracle认证试题 oracle认证考试试题 oracle认证历年真题
如果你觉得一篇文章有用,你可以在每篇后面参与评论,或者查看其他人的评论,请保证你的评论对大家友好。
点这里评论
或者您可以来资源论坛参与讨论,一切都是免费的,不过可能需要麻烦您注册一下。
点这里讨论
把你的文章登陆在这里,让大家来分享你的文章。请立即登陆发表!
点这里投稿