单选题William specified the following initialization parameter settings in the pfile： BACKGROUND_DUMP_DEST = ’u01/oradata/dir_A’ USER_DUMP_DEST = ’u01/oradata/dir_B’ DB_CREATE_FILE_DEST = ’u01/oradata/dir_C’ DB_CREATE_ONLINE_LOG_DEST_n = ’u01/oradata/dir_D’ William enabled the change-tracking feature because he does not want to scan the entire datafile during backup. What is the default storage location for the change tracking file？（）A ’u01/oradata/dir_A’B ’u01/oradata/dir_B’C ’u01/oradata/dir_C’D ’u01/oradata/dir_D’
单选题
William specified the following initialization parameter settings in the pfile： BACKGROUND_DUMP_DEST = ’u01/oradata/dir_A’ USER_DUMP_DEST = ’u01/oradata/dir_B’ DB_CREATE_FILE_DEST = ’u01/oradata/dir_C’ DB_CREATE_ONLINE_LOG_DEST_n = ’u01/oradata/dir_D’ William enabled the change-tracking feature because he does not want to scan the entire datafile during backup. What is the default storage location for the change tracking file？（）
A
’u01/oradata/dir_A’
B
’u01/oradata/dir_B’
C
’u01/oradata/dir_C’
D
’u01/oradata/dir_D’
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