053-618

You want to set the following initialization parameters for your database instance:
LOG_ARCHIVE_DEST_1 = 'LOCATION=/disk1/arch' LOG_ARCHIVE_DEST_2 =
'LOCATION=/disk2/arch' LOG_ARCHIVE_DEST_3 = 'LOACTION=/disk3/arch'
LOG_ARCHIVE_DEST_4 = 'LOCATION=/disk4/arch
MANDATORY'
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.

　　此题考点是 MANDATORY 选项。指定这个选项之后， redo 日志在成功归档到此路径之前，
不能被重用。 D 对。 LOG_ARCHIVE_DEST_1 到 LOG_ARCHIVE_DEST_31，不支持这
个参数，其他的无要求， C 错
　　LOG_ARCHIVE_DEST_n 指定的位置可以是本地磁盘位置，也可以是闪回恢复区：
LOCATION=local_disk_directory
LOCATION=USE_DB_RECOVERY_FILE_DEST
A,B 错