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  • OCP-052考试题库汇总(52)-CUUG内部解答版

    Your DB_RECOVERY_FILE_DEST_SIZE IS 8G,Currently,5G of the space is used of which 4G consists of obsolete backups, You execute this command;

    SQL> ALTER SYSTEM SET db_recovery_file_dest_size=2G;

    What is the outcome?

    A) It changes DB_RECOVERY_FILE_DEST_SIZE to 2G and deletes the obsolete backups

    B) It changes DB_RECOVERY_FILE_DEST_SIZE to 5G

    C) It fails because DB_RECOVERY_FILE_DEST_SIZE is a static parameter

    D) It changes DB_RECOVERY_FILE_DEST_SIZE to 2G without deleting valid backups

    E) It fails because the new size is less than 5G

    Answer: D (验证过)

    CUUG:因为当前还有空闲的空间 3G,所以无需删除有效和无效的备份。

    赵:网友选 A 待验证。个人认为有效的备份只有 1G,小于被修改后的 2G,不需要删除过时的备份。

    题译:DB_Recovery_file_DEST_size 为 8G,目前使用的空间为 5G,其中 4G 由过时的备份组成。

    小明:A 实测不会删除

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  • 原文地址:https://www.cnblogs.com/cnblogs5359/p/11495561.html
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