单选题You lost a temporary file that belongs to the default temporary tablespace in your database. From the options provided, which approach would you take to solve the problem?()A flash back the databaseB import the temporary tablespace from the last exportC restore all the data files and temporary files from the last full database backup and perform a recoveryD not perform a recovery, but create a new temporary tablespace, make it the default temporary tablespace and then drop the old tablespace

单选题
You lost a temporary file that belongs to the default temporary tablespace in your database. From the options provided, which approach would you take to solve the problem?()
A

 flash back the database

B

 import the temporary tablespace from the last export

C

 restore all the data files and temporary files from the last full database backup and perform a recovery

D

 not perform a recovery, but create a new temporary tablespace, make it the default temporary tablespace and then drop the old tablespace


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You are the administrator of a SQL Server 2000 computer in your company's personnel department. Employee data is stored in a SQL Server 2000 database. A portion of the database schema is shown in the exhibit.You want to create a text file that lists these data columns in the following format title, FirstName, LastName, WorkPhone, PositionName, DepartmentName.You want to create the text file as quickly as possible. You do not expect to re-create this file, and you want to avoid creating new database objects if possible.What should you do?A.Use the bcp utility to export data from each table to a separate text file. Use format files to select the appropriate columns. Merge the data from each text file into a single text file.B.Create a view that joins data from all three tables include only the columns you want to appear in the text file. Use the bcp utility to export data from the view.C.Create a SELECT query that joins the data from the appropriate columns in the three tables. Add an INTO clause to the query to create a local temporary table. Use the bcp utility to export data from the local temporary table to a text file.D.Create a SELECT query that joins the data from the appropriate columns in the three tables. Add an INTO clause to the query to create a global temporary table. Use the bcp utility to export data from the global temporary table to a text file.

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.

When you are performing media recover, and an archived log is lost or corrupt, which type of recover must you perform?()A、Until SCNB、Until timeC、Until cancelD、Recover using backup control file.

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You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup metadata information. You want to enable the reusable section of the control file to expand itself if the oldest record cannot be reused, and whenever a new record is added to the reusable section of the control file. Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME parameter?()A、 ZeroB、 One or moreC、 NONED、 DEFAULT

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Your Supportcenter.cn database is in ARCHIVELOG mode. The data file that belongs to the SYSTEM tablespace has become corrupted. Up to what point can you recover the database?()A、Until last commitB、Until the time you perform recoveryC、Until the time the date file got corruptedD、Until the point where the last transaction begunE、You cannot recover the SYSTEMtablespaceand must re-create the database.

Last night, a media failure caused the loss of a temporary file that belongs to your database. Which two things may happen this morning when you try to open your database?()A、 The database writer writes to a trace file, indicating that the temporary file is not found.B、 The database prompts for a database recovery.C、 The database opens normally.D、 The database gets mounted and throws an error indicating that the temporary file requires recovery.

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In which situation are you NOT required to perform an incomplete recovery?()A、 when all the control files are lostB、 when all the members of a redo log group are lostC、 when a table is dropped and purged from the Recycle BinD、 when a temporary file of the default temporary tablespace is lost

Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel-based recovery? ()A、 You find that one of the redo log members in each redo log group is lost.B、 You find that a data file that belongs to the USERS tablespace is damaged.C、 You find that a data file that belongs to the SYSTEM tablespace is damaged.D、 You find that the current redo log group is damaged and is not available for recovery.E、 You realized while performing a recovery that an archived redo log file needed for recovery is lost.

单选题While creating a database using Database Configuration Assistant tool, you created a database default temporary tablespace. Which activity would cause the default temporary tablespace of the database to be used?()Athe CREATE TABLE .. commandBsorting of the SYSTEM tablespace’s dataCsorting of data required by recursive SQL statementsDthe CREATE TABLE .. ORGANIZATION EXTERNAL .. commandEsorting of data if the users have not been allocated temporary tablespace explicitlyFsorting of data if the users have been allocated temporary tablespace explicitly

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单选题A user executes a query on the EMP table, which contains thousands of rows, to get details about employees in one of the departments. The user receives the following error: SQL SELECT ename FROM emp WHERE deptno=10 ORDER BY sal; SELECT ename FROM emp WHERE deptno=10 ORDER BY sal  *  ERROR at line 1:  ORA/x7f01157: cannot identify/lock data file 201 /x7f see DBWR trace file  ORA/x7f01110: data file 201: ’/u01/app/oracle/oradata/orcl/temp01.dbf’  What is a possible reason?()AThe tempfile belonging to the default temporary tablespace is missing.BThe database is opened in restricted mode, so queries are not allowed.CThe default temporary tablespace required to execute the query is offline.DThe default temporary tablespace required to execute the query is dropped.EThe default temporary tablespace required to execute the query is read­only.

单选题A user executes a query on the EMPtable, which contains thousands of rows, to get details about employees in one of the departments. The user receives the following error:  SQL SELECT ename FROM emp WHERE deptno=10 ORDER BY sal;  SELECT ename FROM emp WHERE deptno=10 ORDER BY sal  ERROR at line 1:  ORA-01157: cannot identify/lock data file  201 - see DBWR trace file ORA-01110: data file 201:’/u01/app/oracle/oradata/orcl/temp01.dbf’  What is a possible reason?()A The tempfile belonging to the default temporary tablespace is missing.B The database is opened in restricted mode, so queries are not allowedC The default temporary tablespace required to execute the query is offline.D The default temporary tablespace required to execute the query is dropped.E The default temporary tablespace required to execute the query is read-only.

多选题Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel-based recovery? ()AYou find that one of the redo log members in each redo log group is lost.BYou find that a data file that belongs to the USERS tablespace is damaged.CYou find that a data file that belongs to the SYSTEM tablespace is damaged.DYou find that the current redo log group is damaged and is not available for recovery.EYou realized while performing a recovery that an archived redo log file needed for recovery is lost.

单选题You are managing an Oracle Database 10g database that uses Oracle Managed Files (OMF). You enabled the block change tracking feature for the database. Which statement regarding the change tracking file is true?()A One block change tracking file is created for each data file. By default, the file is created in DB_CREATE_FILE_DEST.B One block change tracking file is created for each data file. By default, the file is created in BACKGROUND_DUMP_DEST.C One block change tracking file is created for the database. By default, the file is created in DB_CREATE_FILE_DEST.D One block change tracking file is created for the database. By default, the file is created in BACKGROUND_DUMP_DEST.

多选题Last night, a media failure caused the loss of a temporary file that belongs to your database. Which two things may happen this morning when you try to open your database? ()AThe database opens normally.BThe database prompts for a database recovery.CThe database writer writes to a trace file, indicating that the temporary file is not found.DThe database gets mounted and throws an error indicating that the temporary file requires recovery.

单选题You work as a database administrator for Supportcenter.cn. You added atablespaceto your database. Because of the changes to the physical structure of your database, you performed a backup of the control file to trace. After this, you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database?()AStart the instance and open the database, instance recovery automatically recoverscontrol filesBCreate a file based on the contents of the trace file and save it to the control file locations and start the databaseCRe-create the database (The recovery of the control file is not possible because you have lost all the control files.)DStart the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.EStart the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

单选题You are the network administrator for You administer a Windows Server 2003 computer named TestKing2. contains a shared folder named TestKingProjects. You use the Backup utility once each day to back up the TestKingProjects folder. You discover that a database file in the TestKingProjects folder is corrupt. You confirm that the file corruption is not the result of a virus. You need to replace the corrupted file by using the latest backup. You do not know whether the file was corrupted before or after the latest backup was completed. You need to verify that the file in the backup can be opened successfully before you overwrite the existing file. What should you do?()AIn the Backup utility, select the Verify data after backup option.BRun the Ntbackup //TestKing2/TestKingProjects /v:yes command.CRestore the file to a temporary folder. Verify that the database file contains the correct data. Copy the restored file to the TestKingProjects folder.DRestore the file to a temporary folder. Use the Windiff utility to compare the file in the temporary folder to the file in the TestKingProjects folder. Copy the restored file to the TestKingProjects folder.

单选题In which situation are you NOT required to perform an incomplete recovery?()A when all the control files are lostB when all the members of a redo log group are lostC when a table is dropped and purged from the Recycle BinD when a temporary file of the default temporary tablespace is lost

单选题You issued the following command on the temporary tablespace LMTEMP in your database:   SQLALTER TABLESPACE lmtemp SHRINK SPACE KEEP 20M;   Which requirement must be fulfilled for this command to succeed?()A The tablespace must be locally managed.B The tablespace must have only one temp file.C The tablespace must be made nondefault and offline.D The tablespace can remain as the default but must have no active sort operations.

多选题You lost a data file that belongs to an index tablespace in your database, which operates in ARCHIVELOG mode. Loss of the data file resulted in increased response time on your queries. Which two options would you use to solve this problem? ()ARestore the lost data file from the backup, and then flash back the database.BRestore the data file pertaining to index tablespace, and then recover the tablespace.CRestore all the data files, and then perform an incomplete recovery to get the tablespace back.DRestore all the data files, and then perform an incomplete recovery using the backup control file.EDrop and re-create the index tablespace, and then re-create all of the indexes in that tablespace.

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

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单选题Which statement about recovering from the loss of a redo log group is true?()A If the lost redo log group is ACTIVE, you should first attempt to clear the log file.B If the lost redo log group is CURRENT, you must clear the log file.C If the lost redo log group is ACTIVE, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.D If the lost redo log group is CURRENT, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.