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

第1题：

How  can  a  directory  named  /dirl  be  excluded  during  a  restore  of  files backed  up  by  name  with  the  backup command（）

• A、By using the restore -x option followed by /dirl
• B、By adding an entry in the /etc/restore.exclude file
• C、By using the restore -i option to enter interactive mode and executing the command：delete /dirl
• D、By using the restore -i option when running restore to specify a text file containing ’/dirl1 as one of the  lines in it

第2题：

Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member， which is not a member of the current group. How would you recover from the loss of the redo log member？（）

• A、SMON would automatically restore the lost file.
• B、You would need to restore the whole database from the last backup.
• C、You would need to restore the file from the last full database backup.
• D、You would need to use flashback technology to restore the lost redo log member.
• E、You would need to use Recovery Manager （RMAN） to restore the lost redo log member.
• F、You would need to restore the missing log file by copying one of the remaining files from the same group.

第3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.

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 database
• B、Create the data file and performtablespacerecovery
• C、No need to restore any file， just recover the database
• D、Restore only the system data file and recover the database
• E、Restore only lost date file and performtablespacerecovery

第5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 DBID
• D、 Issue the RECOVER DATABASE command.

第6题：

Your database is set in NOARCHIVELOG mode and is backed up every night. There are 10 redo log groups on the database， each with three members， making a total of 30 redo log files. At lunchtime the server unexpectedly gets shut down. Upon restarting you notice that the data file belonging to the SYSTEM tablespace has become corrupted. You also notice that there have been 15 log switches during the day. Which solution should you use to recover as much committed data as possible？（）

• A、Restore the data file for the SYSTEM tablespace then open the database. 
• B、Restore all redo logs form last night's backup, then restart the database. 
• C、Perform a complete restore of all files from last night's backup. Data entered into the database today must be reentered. 
• D、Mount the instance, take the SYSTEM tablespace offline, open the database, and then restore the data file, recover it, and bring the tablespace online. 

第7题：

You delete content from a file named Speed.doc that is stored in the C:///Data folder. You edit 20 files in this folder over the next two days.  You need to restore the version of the file that had the correct data. You also need to ensure that the other files in the folder remain unaffected.  What should you do？ （）

• A、From the Previous Versions tab， restore the version of the file that contains the correct data.
• B、Restore a version of the folder that contains the correct version of the file.
• C、Open a version of the folder that contains the correct version of the file.
• D、Copy a version of the folder that contains the correct version of the file. Replace the existing version of the folder with the older version.

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第13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 -i
• B、 fssnap -r
• C、 ufsrestore -i
• D、 snaprestore -i

第14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.

第15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 recovery
• B、 recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database
• C、 drop the read-only tablespace and re-create the tablespace after recovery
• D、 perform a recovery； status of the tablespace in control file will be changed automatically

第16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 /check
• B、 mount -F ufs -o rw /dev/fssnap/0 /check
• C、 mount -F ufs -o ro /export/project /check
• D、 mount -F ufs -o rw /export/project /check

第17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.

第18题：

Your data recovery strategy must meet the following requirements： Back up all data files and folders in C:///Data.  Restore individual files and folders in C:///Data.  Ensure that data is backed up to and restored from external media.  What should you do？（）

• A、Use the Previous Versions feature to restore the files and folders.
• B、Use the System Restore feature to perform backup and restore operations.
• C、Use the NTBackup utility to back up and restore individual files and folders.
• D、Use the Backup and Restore Center to back up and restore files.

第19题：

. You have a server that runs Windows Server 2003 Service Pack 2 (SP2). You back up the files on the server by using the following schedule: ·Full backup every Sunday ·Differential backup at 01:00 every Monday to Friday You want to restore the version of a file stored on the server at the start of the business day on Wednesday. You are unsure when the file was last modified. You need to restore the appropriate version of the file by using the minimum number of tapes. Which backup jobs should you review to locate the correct version of the file? （）

• A、the differential backup from Tuesday
• B、the differential backup from Wednesday and then the full backup from Sunday
• C、the full backup from Sunday
• D、the full backup from Sunday and then all other backups

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