单选题You need to restore some files from a file system. The file system was backed up from a snapshot. Which command will correctly restore these files？（）Afssnap -iBfssnap -rCufsrestore -iDsnaprestore -i

题目

单选题

You need to restore some files from a file system. The file system was backed up from a snapshot. Which command will correctly restore these files？（）

fssnap -i

fssnap -r

ufsrestore -i

snaprestore -i

参考答案和解析

正确答案： D

解析：暂无解析

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第1题

A corrupted file system is now repaired and back in use. Some， but not all of the files within the file systems have been deleted. The only backup of this file system is a month-old tar archive. This archive will need to be restored as root. Which two statements correctly describe the effects of the restore operation？（）A、 Files found in the file system that are also on tape will NOT be overwritten.B、 The missing files， present on the backup tape， are restored to the file system with the data as it was when the backup was taken.C、 The access times are preserved by tar and will reflect the time when a user last accessed the data.D、 The modification time on the files restored by tar will be preserved and will reflect the time the file was last modified before the backup， NOT the time of the restore operation.

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第2题

You have a computer that runs Windows 7. You manually create a system restore point. You need torestore a copy of a file stored on drive C from two days ago. You must achieve this goal in the minimumamount of time. What should you do?（）A、From Recovery, select System Restore.B、From Backup and Restore, select Restore my files.C、From the command prompt, run Wbadmin get items.D、From the properties of the file, select Previous Versions.

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第3题

You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the control file was backed up. What should you consider？（）A、 take data files from the read-only tablespace offline before performing a recoveryB、 recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the databaseC、 drop the read-only tablespace and re-create the tablespace after recoveryD、 perform a recovery； status of the tablespace in control file will be changed automatically

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第4题

You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode. The database has been configured with three redo logs groups， and there have been five log switches. You lost one non-system-critical data file from your database. Which method would you use to recover the data file？（）A、Restore all the data files and open the databaseB、Create the data file and performtablespacerecoveryC、No need to restore any file， just recover the databaseD、Restore only the system data file and recover the databaseE、Restore only lost date file and performtablespacerecovery

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第5题

A snapshot of the /export/project file system has been taken. Prior to backing up the file system， you need to check to see if certain files are on the snapshot. The snapshot needs to be mounted to check for these files. Which command will mount the snapshot？（）A、 mount -F ufs -o ro /dev/fssnap/0 /checkB、 mount -F ufs -o rw /dev/fssnap/0 /checkC、 mount -F ufs -o ro /export/project /checkD、 mount -F ufs -o rw /export/project /check

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第6题

You are maintaining the PROD database for NetFx Corporation. You have configured controlfile autobackup in your database. At 6：00 P.M. on Monday， you issue the following command： RMAN>BACKUP DATABASE； At 8：00 A.M. on Tuesday， you are unable to start the database because all the control files are missing. You decide to restore the control files from the backup by using the RMAN> RESTORE CONTROLFILE FROM AUTOBACKUP； command. Which operation should you perform before using the RMAN> RESTORE CONTROLFILE FROM AUTOBACKUP； command？（）A、 Start the database in the MOUNT stage.B、 Back up the control file to trace.C、 Set the DBIDD、 Issue the RECOVER DATABASE command.

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第7题

While selecting files during an interactive restore with ufsrestore， you are interrupted by a junior administrator before you can complete the file selection process and start the restore. After answering the administrator’s question， you realize that you have forgotten which files you had already selected for the restore. How can you determine which files are already marked for extraction and restore？（）A、 You can use the ls subcommand of ufsrestore.B、 You can use the add subcommand of ufsrestore.C、 You can use the select subcommand of ufsrestore.D、 You can view the selected files as they are marked with a plus sign （+） in the list that is permanently displayed in the upper half of the interactive ufsrestore screen view.

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单选题You need to restore some files from a file system. The file system was backed up from a snapshot. Which command will correctly restore these files？（）A fssnap -iB fssnap -rC ufsrestore -iD snaprestore -i

题目

参考答案和解析

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