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You want to set the following Initialization parameters for your database Instance   LOG_ARCHIVE_DEBT_1 = ，，LOCATION=/disk1/arch LOG_ARCHIVE_DBST_2 = ，，LOCATION=/disk2/arch LOC_ARCHIVB DBST_3 = ，，LOCATION=/disk3/arch LOG_ARCHIVE DBST_ = ，，LOCATION=/disk3/arch   Identify the statement that correctly describes this setting.（）  
A: The MANDATORY location must be a flash recovery area.
B: The optional destinations may not use the flash recovery area.
C: This setting is not allowed because the first destination is not set as MANDATORY.
D: The online redo log file is not allowed to be overwritten if the archived log cannot be created in the fourth destination.

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出自：Oracle认证

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