The data file backup is done with multiple channels
The data files is in the read-write mode after being backed up in the read only mode
The backup was taken after the data files was taken offline-normal or is in the read only mode
The data file backup complies with the back retention policy and the backup duplexing feature
第1题：
A. The data file backup is done with multiple channels
B. The data files is in the read-write mode after being backed up in the read only mode
C. The backup was taken after the data files was taken offline-normal or is in the read only mode
D. The data file backup complies with the back retention policy and the backup duplexing feature
第2题：
A. The data file backup is done with multiple channels
B. The data files is in the read-write mode after being backed up in the read only mode
C. The backup was taken after the data files was taken offline-normal or is in the read only mode
D. The data file backup complies with the back retention policy and the backup duplexing feature
第3题：
A. The data file is checked for physical corruption and backed up if found clean.
B. The backup of data file 5 is performed and the interactive messages during the backup are suppressed.
C. The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.
D. The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed
第4题：
Examine the following RMAN script: RMAN> run { debug on; allocate channel c1 type disk; backup datafile 5; } Which statement describes the purpose of the script?（）
第5题：
You have enabled backup optimization for the RMAN environment.Identify two criteria on which RMAN will skip the file, if it has already been backed up.（）
第6题：
You issued the following commands to configure setting in RMAN;RMAN> CONFIGURE DEVICE TYPE sbt PARALLELISM 1;RMAN> CONFIGURE DEFAULT DEVICE TYPE TO sbt;RMAN> CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE sbt TO 2;RMAN> CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE sbt TO 2;RMAN> CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2;Then you issued the following command to take the backup:RMAN> BACKUP DATABASE PLUS ARCHIVELOG;Which statement is true about the execution of the above command?（）
A. The backup will terminate because the FORMAT clause was not configured for the channel
B. It backs up two copies of data files to tape and disk, and two copies of archived log file on tape
C. It backs up the data files and archived log files to disk, making two copies of each data file and archived log file
D. It backs up the data files and archived log files to tape, making two copies of each data file and archived log file
第7题：
You have enabled backup optimization for the RMAN environment. Identify two criteria on which RMAN will skip the file, if it has already been backed up.（） (Choose two.)
第8题：
You issued the following commands to configure setting in RMAN;Then you issued the following command to take the backup:RMAN> BACKUP DATABASE PLUS ARCHIVELOG;Which statement is true about the execution of the above command?（）
A. The backup will terminate because the FORMAT clause was not configured for the channel
B. It backs up two copies of data files to tape and disk, and two copies of archived log file on tape
C. It backs up the data files and archived log files to disk, making two copies of each data file and archived log file
D. It backs up the data files and archived log files to tape, making two copies of each data file and archived log file
第9题：
In which scenario， will you issue the following command？（） RMAN> REPORT NEED BACKUP DAYS 7；
第10题：
You performed the RMAN database backup with the KEEP option.Which two statements are true about this backup?（） (Choose two)