单项选择题
A. Oracle will automatically take the datafile out of hot backup mode，generate a warning message，and then open the database.
B. Oracle will automatically take the datafile out of hot backup mode and then open the database.
C. Oracle will generate an error when trying to open the database，indicating that a datafile is in hot backup mode.You will need to correct this error before you can open the database.
D. The database will open with the file in hot backup mode. You can restart the backup at any time.
E. The datafile in hot backup mode will be corrupted and you will have to recover it.
单项选择题 Whichviewprovidesinformationonthebackupstatusofthedatafilesinthedatabase？（）
单项选择题 What will be the result of the following configuration？（） Log_archive_dest_1=location=c：\oracle\arch\mydb Log_archive_dest_2=location=z：\oracle\arch\mydb
单项选择题 ArchivedredologscanbecopiedtomorethanonedestinationbyOracle.（）