CMS专题
单选题You have issued the following command： RMAN>CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 100 DAYS； What will be the result of using the above command？（）AThe backup metadata will be maintained in the control file for 100 days.BThe backup metada
题目
The backup metadata will be maintained in the control file for 100 days.
The backup metadata will be maintained in the recovery catalog for 100 days.
The backup metadata will be maintained in the flash recovery area for 100 days.
After 100 days， the backup sets and image copies will be deleted from the media.
相似问题和答案
第1题：
You are managing the APPPROD database as a DBA. You plan to duplicate this database in the same system with the name DUPDB.You issued the following RMAN commands to create a duplicate database:Which three are the prerequisites for the successful execution of the above command?（）
A. The source database should be open
B. The target database should be in ARCHIVELOG mode if it is open
C. RMAN should be connected to both the instances as SYSDBA
D. The target database backups should be copied to the source database backup directories
E. The password file must exist for the source database and have the same SYS user password as the target
第2题：
You set the recovery window to seven days and the backup optimization to ON using the CONFIGURE command of Recovery Manager （RMAN）. The most recent backup of the TOOLS tablespace to disk was taken on January 3. The TOOLS tablespace is read/x7fonly. On February 21， when you execute a command to back up all the tablespaces to disk， you find that RMAN backs up the TOOLS tablespace also， even though the contents of the tablespace have not changed after the backup on January 3. Because there are no changes made to the TOOLS tablespace， you decide that the tablespace should not be backed up by RMAN. What can you to do skip backing up the TOOLS tablespace without changing the current backup optimization setting？（）
- A、configure a default device for RMAN backups
- B、temporarily disable the retention policy for RMAN backups
- C、configure automatic channel allocation for RMAN backups
- D、use the CONFIGURE command to reconfigure the recovery window to 60 days
正确答案:B
第3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4题：
You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for the RMAN. To accomplish the backup， you issued the following RMAN command： RMAN> BACKUP SECTION SIZE 300M TABLESPACE users； Which two statements are true regarding the execution of the above command？（）
- A、 The RMAN parallelizes the backup although the parallelism is not set for a channel.
- B、 The backup piece size will be limited to 300 MB.
- C、 The operation is accomplished using the default channel available.
- D、 Three channels for the tape drive must be configured by setting the parallelism to three.
正确答案:B,C
第5题：
You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for Recovery Manager (RMAN). To accomplish the backup, you issued the following RMAN command: RMAN> BACKUP SECTION SIZE 300M TABLESPACE users; Which two statements are true about the execution of the above command? （）(Choose two.)
- A、The backup piece size will be limited to 300 MB
- B、The RMAN uses multiplexing to perform backup
- C、The operation is accomplished using the default channel available
- D、The RMAN parallelizes the backup although the parallelism is not set for a channel
正确答案:A,C
第6题：
In Recovery Manager （RMAN）， you have set control file autobackup to ON by using the following command： CONFIGURE CONTROLFILE AUTOBACKUP ON; Which two events would cause the control file to be backed up automatically？ （）
- A、a tablespace is taken offline
- B、the database instance is restarted
- C、a new data file is added to an existing tablespace
- D、a successful backup is recorded in the RMAN repository
- E、the RMAN connection is disconnected from the target database
正确答案:C,D
第7题：
In which scenario， will you issue the following command？（） RMAN> REPORT NEED BACKUP DAYS 7；
- A、 to configure RMAN to maintain backup information in the RMAN repository for seven days
- B、 to configure RMAN to maintain backup information in the control file for at least seven days
- C、 to display the list of files that have not been backed up for the last seven days
- D、 to display the list of files that must be backed up within seven days
正确答案:C
第8题：
Multiple RMAN sessions are connected to the database instance.Examine the following output when backup commands are running in server sessions:What could have helped you to correlate server sessions with channels?（）
A. Implement RMAN multiplexing
B. Set the DEBUG ON in the RMAN script
C. Specify the command ID in the RMAN script
D. Use a tag with the RMAN BACKUP command
第9题：
Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt： RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON； After executing this command， in which of the following cases will RMAN make an auto-backup of the control file？ （）
- A、 when you change the name of a datafile
- B、 when you drop a table from the database
- C、 when you take an export of the database
- D、 when you back up the database using OS utilities
- E、 when you issue an ALTER SYSTEM SWITCH LOGFILE statement
- F、 when you issue a BACKUP command from inside the RMAN run block
正确答案:A,E,F
第10题：
You issued the following RMAN command： RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON； What is NOT an impact of using the above command？（）
- A、 When a successful backup is recorded in the RMAN repository， then a backup of the current control file is performed.
- B、 When a structural change is made to the database， then a backup of the current control file is performed.
- C、 When a successful backup is performed in the RMAN repository， then a backup of the spfile is performed.
- D、 When a structural change is made to the database， then a backup of the alert log file will be performed.
正确答案:D