CMS专题
单选题The backup retention policy is configured as RECOVERY WINDOW 2. You executed the following command in Recovery Manager （RMAN） against your database： RMAN> REPORT OBSOLETE； What would you see in the output？（）Aa list of all those files that have been del
题目
a list of all those files that have been deleted in the last two days
a list of all those files that have been recovered within the last two days
a list of all the expired backups and copies
a list of backups and copies that are outside the range covered by the current retention policy
参考答案和解析
相似问题和答案
第1题：
You performed the RMAN database backup having a backupset key number 231 with the KEEP FOREVER option. After some days, you want to change the status of the database backup and you issued the following command: RMAN>CHANGE BACKUPSET 231 NOKEEP; What is the implication of this command?（）
- A、The backup is deleted.
- B、The backup is marked unavailable.
- C、The backup overrides the backup retention policy.
- D、the backup becomes eligible for deletion according to the existing retention policy
正确答案:D
第2题：
The backup retention policy is configured as RECOVERY WINDOW 2. You executed the following command in Recovery Manager （RMAN） against your database： RMAN> REPORT OBSOLETE； What would you see in the output？（）
- A、 a list of all those files that have been deleted in the last two days
- B、 a list of all those files that have been recovered within the last two days
- C、 a list of all the expired backups and copies
- D、 a list of backups and copies that are outside the range covered by the current retention policy
正确答案:D
第3题：
A. Only data files and the control file are backed up.
B. Archived redo logs are backed up only I f the database is open during the backup.
C. The backup is deleted after one day, regardless of the default retention policy settings.
D. The backup becomes obsolete after one day, regardless of the default retention policy settings.
第4题：
After running the CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS command， what has been accomplished？（）
- A、Retain the data file backup for 7 days.
- B、Run the recover process every 7 days.
- C、Destroy the physical backup files every 7 days.
- D、Destroy the physical backup files older than 7 days.
- E、Retain one backup of each data file for at least 7 days.
- F、Keep the catalog information in the control file for 7 days.
正确答案:E
第5题：
You defined the Recovery Manager （RMAN） retention policy to recovery window of 7 days by executing the following command： RMAN> CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS； When a backup is performed， what would be the status of this backup after seven days？（）
- A、 The backup would be marked as invalid.
- B、 The backup would be marked as obsolete.
- C、 The backup would be removed from the media.
- D、 The backup would be removed from the RMAN repository.
正确答案:B
第6题：
Which of the following is the MOST important step in preparing for disaster recovery？（）
- A、 Test the disaster recovery plan process
- B、 Identify key disaster recovery personnel
- C、 Ensure that all backup data is kept off-site
- D、 Assist management with IT backup policy decisions
正确答案:A
第7题：
You have enabled backup optimization in RMAN. You issue the following RMAN command to configure a redundancy-based retention policy： CONFIGURE RETENTION POLICY TO REDUNDANCY 3； Which statement is true？（）
- A、 The command fails because you cannot configure a redundancy-based retention policy when backup optimization is enabled
- B、 Backup optimization is performed， but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up
- C、 Backup optimization is permanently disabled
- D、 Backup optimization is temporarily disabled because a redundancy-based retention policy is specified
正确答案:B
第8题：
In Recovery Manager （RMAN）， you set the retention policy to NONE by executing the following command： CONFIGURE RETENTION POLICY TO NONE; What would be the impact of this setting？（）
- A、The retention policy is cleared.
- B、RMAN does not consider any backup as obsolete.
- C、The retention policy is set to its default setting of redundancy 1.
- D、The retention policy is set to its default setting of recovery window 7.
正确答案:B
第9题：
You performed the RMAN database backup with the KEEP option. Which two statements are true regarding this backup？（）
- A、 The backup contains data files， the server parameter file，and the control file even if the control file autobackup is disabled.
- B、 The KEEP option overrides the configured retention policy.
- C、 The backup contains only data files and archived redo log files.
- D、 The KEEP option is an attribute of an individual backup piece.
正确答案:A,B
第10题：
You configured the default backup device type as disk for RMAN backups. In your database，because of business requirements，you have to take a simultaneous duplicate backup of the data files when the RMAN BACKUP command is used. What must you set using the RMAN CONFIGURE command to achieve this？（）
- A、 MAXSETSIZE TO 2
- B、 DEVICE TYPE DISK PARALLELISM 2
- C、 RETENTION POLICY TO REDUNDANCY 2
- D、 DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2
正确答案:C