CMS专题
多选题You want to perform an RMAN backup of database as a copy. Which two factors will you consider whileperforming the backup operation?（） (Choose two).AThe backup as copy can only be taken to diskBThe backup as copy can only be taken to tapeCBackup can be
题目
The backup as copy can only be taken to disk
The backup as copy can only be taken to tape
Backup can be performed only when the instance is shutdown
Backup will constitute all used and unused blocks in the database
相似问题和答案
第1题：
You performed an incremental level 0 backup of a database:RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE;To enable block change tracking after the incremental level 0 backup, you issued this command:SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’;To perform an incremental level 1 cumulative backup, you issued this command:RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which three statements are true?（）
A. Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.
B. The change tracking file must always be backed up when you perform a full database backup.
C. Block change tracking will always reduce I/O performed during cumulative incremental backups.
D. More than one database block may be read by an incremental backup for a change made to a single block.
E. The incremental level 1 backup that immediately follows the enabling of block change tracking will not read the change tracking file to discover changed blocks.
第2题：
You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） to perform backups in your databases. Which four backup operations can be performed using RMAN？（）
- A、A backup of the target database when it is mounted
- B、A backup of online redo log files when the database is open
- C、A backup of only used data blocks in the file beingbeingbackup up
- D、A backup of online， read/write data files when the database is open
- E、A backup of only those data blocks that have changed since a previous backup
- F、A backup of online， read/write data files when the database is in the NOMOUNT state.
正确答案:A,C,D,E
第3题：
A. The backup as copy can only be taken to disk
B. The backup as copy can only be taken to tape
C. Backup can be performed only when the instance is shutdown
D. Backup will constitute all used and unused blocks in the database
第4题：
You are using RMAN to perform a closed database backup of your database. You issue these RMAN commands： STARTUP MOUNT； BACKUP FORMAT ’/BACKUP/df_%d_%s_%p.bus’ DATABASE filesperset = 2； Which components are included in the backup？（）
- A、Only the data files.
- B、Only the data files and the online logs.
- C、The data files， control files， and the online logs.
- D、The data files and control files， but not the online logs.
正确答案:D
第5题：
You want to perform the database backup when user activity on your system is low, such as between 12:00 a.m. and 2:00 am. Which command terminates with an error if the backup is not complete at the end of the specified duration?（）
- A、RMAN> BACKUP DURATION 2:00 MINIMIZE LOAD DATABASE
- B、RMAN> BACKUP DURATION 2:00 PARTIAL FILESPERSET 1 DATABASE
- C、RMAN> BACKUP DURATION 2:00 PARTIAL MINIMIZE TIME DATABASE
- D、RMAN> BACKUP AS COPY DURATION 2:00 PARTIAL MINIMIZE LOAD DATABASE
正确答案:A
第6题：
Your multitenant container database (CDB) contains a pluggable database, HR_PDB. The default permanent tablespace in HR_PDB is USERDATA. The container database (CDB) is open and you connect RMAN.You want to issue the following RMAN command:RMAN > BACKUP TABLESPACE hr_pdb:userdata;Which task should you perform before issuing the command?（）
A. Place the root container in ARHCHIVELOG mode.
B. Take the user data tablespace offline.
C. Place the root container in the nomount stage.
D. Ensure that HR_PDB is open.
第7题：
Your database runs in NOARCHIVELOG mode， and is backed up every night using RMAN scripts. However， last night your assistant DBA performed a manual operating system backup， instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo？（）
- A、You need to perform the restore and recover operations manually, because the backup was made manually.
- B、First you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database.
- C、First you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database.
- D、You can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information.
正确答案:C
第8题：
A. The backup as copy can only be taken to disk
B. The backup as copy can only be taken to tape
C. Backup can be performed only when the instance is shutdown
D. Backup will constitute all used and unused blocks in the database
第9题：
You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode and you want to perform a backup. Which type of backup would be appropriate in this case？ （）
- A、Hot backup
- B、Online backup
- C、consistent backup
- D、incremental backup
- E、inconsistent backup
正确答案:C
第10题：
Your database is functioning in NOARCHIVELOG mode. Your database contains 15 tablespaces. You want to use Recovery Manager （RMAN） to perform backups. Which two backups would you be able to perform when the database is being accessed by users？（）
- A、 Backup of offline tablespaces.
- B、 Backup of read-only tablespaces.
- C、 Backup of system-critical tablespaces.
- D、 Backup of online， locally managed tablespaces.
- E、 Backup of read/write dictionary-managed tablespaces.
正确答案:A,B