Data file DF1 belongs to tablespace TS1.，and the database is in ARCHIVELOG mode. You did an incomplete recover in the following steps： 1. Take data file DF1 offline. 2. Copy a backup copy of DF1 into the current DF1 location. 3. Execute RECOVER DATAFILE UNTIL TIME sometime in the past. 4. Bring DF1 online. 5. Execute ALTER DATABASE OPEN RESETLOGS. To guarantee that the database is recoverable in the future， what is the least amount of work needed？（）A、Back up the data file.B、Bring tablespace TS1 online.C、Copy redo logs to the backup directory.D、Make a complete backup right after opening the database.
Data file DF1 belongs to tablespace TS1.，and the database is in ARCHIVELOG mode. You did an incomplete recover in the following steps： 1. Take data file DF1 offline. 2. Copy a backup copy of DF1 into the current DF1 location. 3. Execute RECOVER DATAFILE UNTIL TIME sometime in the past. 4. Bring DF1 online. 5. Execute ALTER DATABASE OPEN RESETLOGS. To guarantee that the database is recoverable in the future， what is the least amount of work needed？（）
- A、Back up the data file.
- B、Bring tablespace TS1 online.
- C、Copy redo logs to the backup directory.
- D、Make a complete backup right after opening the database.
相关考题：
Examine the following RMAN script:Which statement describes the purpose of the script?() A. The data file is checked for physical corruption and backed up if found clean.B. The backup of data file 5 is performed and the interactive messages during the backup are suppressed.C. The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.D. The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed
Which four actions are possible during an Online Data file Move operation?() A. Creating and dropping tables in the data file being movedB. Performing file shrink of the data file being movedC. Querying tables in the data file being movedD. Performing Block Media Recovery for a data block in the data file being movedE. Flashing back the databaseF. Executing DML statements on objects stored in the data file being moved
A data( )is a file that contains metadata—that is，data about data.A．structureB．tableC．baseD．dictionary
You are the administrator of a SQL Server 2000 computer. The server contains a database named Acct. You purge the Acct database of old records and perform. a full backup. The database now uses 4 GB of space. The database files are configured as shown in the Acct Properties exhibit.The server has two hard disks that are configured as shown in the Server Configuration exhibit.The 3 GB transaction log file for the Acct database is stored on drive C. You need to make room for a new database that has a 3 GB data file and a 1 GB transaction log file. You want to optimize database performance on both databases. You also want to minimize administrative overhead.What should you do?A．Shrink the empty data file on drive E. Place the new data file and the new log file on drive E.B．Shrink the empty data file on drive E. Backup and shrink the log file on drive C to 2 GB. Place the new data file on drive E and the new log file on drive C.C．Shrink the data file on drive D to 1 GB, and then shrink the data file on drive E to 2 GB. Place the new data file on drive D and the new log file on drive E.D．Shrink and delete the data file on drive C, and then shrink the database files on drives D and E so that they are both 2 GB. Place the new data file and the new log file on drive C.
Which of the following statements is TRUE about mounting a file system?() A.A file system cannot be mounted on a directory containing data.B.Mounting a file system on a mount point containing data will delete the data.C.Mounting a file system on a amount point containing data will make the data temporarily inaccessible.D.A systems administrator must manually create an empty directory prior to mounting an AIX JFS.
Which file characteristic cannot be used in the Cisco IronPort Data Security policies？（） A、 file typeB、 file sizeC、 file ageD、 file name
Which two statements correctly describe the relation between a data file and the logical databasestructures（）A、An extent cannot spread across data files.B、A segment cannot spread across data files.C、A data file can belong to only one tablespace.D、A data file can have only one segment created in it.E、A data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.
A data file became corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）A、flash back all the tables in the data file， one by oneB、restore the data file to a new location and perform a media recoveryC、flash back the database; there is no need to restore the data fileD、restore the data file from the most recent backup and flash back the database
Which four actions are possible during an Online Data file Move operation?（）A、Creating and dropping tables in the data file being movedB、Performing file shrink of the data file being movedC、Querying tables in the data file being movedD、Performing Block Media Recovery for a data block in the data file being movedE、Flashing back the databaseF、Executing DML statements on objects stored in the data file being moved
A system administrator has an existing mksysb image, but would like to modify the image.data file on the mksysb before installing it on a system. Which of the following procedures is most appropriate to perform?（）A、Create a new image.data file and recreate the mksysb image.B、Use the dd command to replace the image.data file on the mksysb tape.C、Use the tctl command to palce the new image.data file on the mksysb tape.D、Place the new image.data file on a diskette that will be road during the installation of the mksysb.
Consider the following scenario： You have a directory， data， under the disk group tdgroupA. You want to create an alias for one of the data files and you execute the following command： ALTER DISKGROUP tdgroupA ADD ALIAS ’+tdgroupA/data/datafile.dbf’ FOR ’+tdgroupA.231.45678’； Which task would be accomplished by the command？（）A、The command drops the file +tdgroupA·231.45678.B、The command physically relocates the file to +tdgroupA/data and renames the file to datafile.dbf.C、The command creates a copy of the +tdgroupA·231.45678 file and places it in +tdgroupA/data after renaming the file to datafile.dbf.D、The command creates an alias， datafile.dbf， and places it in +tdgroupA/data and does not remove the +tdgroupA·231.45678 file.E、The command creates a file， datafile.dbf， in +tdgroupA/data and removes the references for +tdgroupA·231.45678 from the data dictionary views.
The data file belonging to theSYSTEMtablespaceis corrupted and no backup of the file is available. How do you recover the data file？（）A、The data file cannot be recovered.B、The date file can be restored from theSYSTEMauto backup.C、Take thetablespaceoffline，drop，kand re-create it.D、Recovery Manager （RMAN） is used to recover the data file.E、The ALTER DATABSE CREATE DATAFILE..commandis used to recover the data file.
A data file become corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）A、 Flash back all the tables in the data file， one by one.B、 Restore the data file to a new location and perform a media recovery.C、 Flash back the database， there is no need to restore the data file.D、 Restore the data file from the most recent backup and flash the database.
单选题Which statements are true， given the code new FileOutputStream（"data"， true） for creating an object of class FileOutputStream？（）AFileOutputStream has no constructors matching the given arguments.BAn IOExeception will be thrown if a file named data already exists.CAn IOExeception will be thrown if a file named data does not already exist.DIf a file named data exists， its contents will be reset and overwritten.EIf a file named data exists， output will be appended to its current contents.
单选题ou have a large amount of historical data in a flat file. Some analysts in your organization need to query thisdata in the file. The file is too large to load the data in it into your current database. Which is the most effectivemethod to access this data in your database（）AUse the database link.BUse the SQL*Loader utility.CUse the Oracle Data Pump utility.DCreate an external table and leave the data in the flat file
单选题Your network contains a file server that runs Windows Server 2008 R2. The server has File Server Resource Manager (FSRM) installed.A file screen is created for a folder named Data. Data is located on the C drive. The file screen is configured to block files contained in the Audio and Video file group.You need to allow users in the sales department to upload video files to C:/Data/Sales. What should you do?（）ACreate a file screen exception.BModify the Audio and Video file group.CImplement an active file screen on C:/Data/Sales.DImplement a passive file screen on C:/Data/Sales.
单选题You are administering a database stored in Automatic Storage management (ASM). The files are storedin the DATA disk group. You execute the following command:SQL ALTER DISKGROUP data ADD ALIAS ‘+data/prod/myfile.dbf’ FOR ‘+data.231.45678’;What is the result?（）AThe file ‘+data.231.54769’ is physically relocated to ‘+data/prod’ and renamed as ‘myfile.dbf’.BThe file ‘+data.231.54769’ is renamed as ‘myfile.dbf’, and copied to ‘+data/prod’.CThe file ‘+data.231.54769’ remains in the same location and a synonym 'myfile.dbf' is created.DThe file ‘myfile.dbf’ is created in ‘+data/prod’ and the reference to ‘+data.231.54769’ in the data dictionary removed.
多选题Which four actions are possible during an Online Data file Move operation?（）ACreating and dropping tables in the data file being movedBPerforming file shrink of the data file being movedCQuerying tables in the data file being movedDPerforming Block Media Recovery for a data block in the data file being movedEFlashing back the databaseFExecuting DML statements on objects stored in the data file being moved
单选题You have a large amount of historical data in a flat file. Some analysts in your organization need toquery this data in the file. The file is too large to load the data in it into your current database. Which is the most effective method to access this data in your database（）AUse the database link.BUse the SQL*Loader utility.CUse the Oracle Data Pump utility.DCreate an external table and leave the data in the flat file
多选题Which two statements correctly describe the relation between a data file and the logical databasestructures（）AAn extent cannot spread across data files.BA segment cannot spread across data files.CA data file can belong to only one tablespace.DA data file can have only one segment created in it.EA data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.
单选题A data file become corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）A Flash back all the tables in the data file， one by one.B Restore the data file to a new location and perform a media recovery.C Flash back the database， there is no need to restore the data file.D Restore the data file from the most recent backup and flash the database.
单选题Data file DF1 belongs to tablespace TS1.，and the database is in ARCHIVELOG mode. You did an incomplete recover in the following steps： 1. Take data file DF1 offline. 2. Copy a backup copy of DF1 into the current DF1 location. 3. Execute RECOVER DATAFILE UNTIL TIME sometime in the past. 4. Bring DF1 online. 5. Execute ALTER DATABASE OPEN RESETLOGS. To guarantee that the database is recoverable in the future， what is the least amount of work needed？（）ABack up the data file.BBring tablespace TS1 online.CCopy redo logs to the backup directory.DMake a complete backup right after opening the database.
单选题The data file belonging to the SYSTEM tablespace is corrupted and no backup of the file is available. How do you recover the data file？（）AThe data file cannot be recovered.BThe date file can be restored from the SYSTEM auto backup.CTake thetablespaceoffline，drop，kand re-create it.DRecovery Manager （RMAN） is used to recover the data file.EThe ALTER DATABSE CREATE DATAFILE..commandis used to recover the data file.
单选题You issue this SQL statement： ALTER DATABASE RENAME FILE ’/ORADATA/u02/user_data01.dbf’ TO ’/ORADATA/u04/user_data01.dbf’； What does this SQL statement do？（）AIt updates the control file with the new location of the data file. BIt updates only the data dictionary with the new location of the data file. CIt changes the location of the user_data01.dbf file in the operating system. DIt changes the location of the user_data01.dbf file in the operating system and updates the control file with the new location of the data file.
单选题Users complain SQL statements using a particular index fail. Using DBVERIFY， you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large. What is the least disruptive recover strategy available in Oracle9i？（）ARebuild the index using the online option. BTake the individual data file offline (not the whole tablespace), restore and recover the data file from backup with RMAN, then set the data file online again. CWithout setting the individual data file offline, use RMAN with Block Media Recovery to restore and recover only those blocks. DTake the individual data file (not the whole tablespace) offline, use RMAN with Block Media Recovery to restore and recover only those blocks, then set the data file online again.
单选题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？（）ARestore all the data files and open the databaseBCreate the data file and performtablespacerecoveryCNo need to restore any file， just recover the databaseDRestore only the system data file and recover the databaseERestore only lost date file and performtablespacerecovery
多选题The database is running in NOARCHIVELOG mode. A data file is lost. Which two are valid options for recover？（）ARestore the data file and perform incomplete recovery.BRestore the data file and perform point-in-time recover.CDrop the tablespace and lose all data in the tablespace.DRestore the database and lose all data since the last backup.
单选题Consider the following scenario： You have a directory， data， under the disk group tdgroupA. You want to create an alias for one of the data files and you execute the following command： ALTER DISKGROUP tdgroupA ADD ALIAS ’+tdgroupA/data/datafile.dbf’ FOR ’+tdgroupA.231.45678’； Which task would be accomplished by the command？（）AThe command drops the file +tdgroupA·231.45678.BThe command physically relocates the file to +tdgroupA/data and renames the file to datafile.dbf.CThe command creates a copy of the +tdgroupA·231.45678 file and places it in +tdgroupA/data after renaming the file to datafile.dbf.DThe command creates an alias， datafile.dbf， and places it in +tdgroupA/data and does not remove the +tdgroupA·231.45678 file.EThe command creates a file， datafile.dbf， in +tdgroupA/data and removes the references for +tdgroupA·231.45678 from the data dictionary views.