82.You are managing an Oracle Database 11g database with the
发布时间：2020-12-12 16:13:23 所属栏目：百科 来源：网络整理
导读：82.You are managing an Oracle Database 11g database with the following backup strategy: 1) On Sunday,an incremental level 0 tape backup is performed. 2) Monday through Saturday,a cumulative incremental level 1 tape backup is performed. Whic
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82.You are managing an Oracle Database 11g database with the following backup strategy: 1) On Sunday,an incremental level 0 tape backup is performed. 2) Monday through Saturday,a cumulative incremental level 1 tape backup is performed. Which two statements are true regarding the backups performed? (Choose two.) A.The backup performed in step 1 backs up all blocks that have ever been in use in the database. B.The backup performed in step 2 copies all the blocks changed since the most recent level 0 backup. C.The backup performed in step 1 backs up all the blocks changed since the most recent level 1 backup. D.The backup performed in step 2 backs up all blocks that have changed since the most recent incremental backup at level 1. 答案：AB 解析：cumulative incremental指的是，它备份上一个级别0备份以来所有发生了变化的块 （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |