单选题A developer calls and reports that he accidentally dropped an important lookup table from a production database. He needs the table to be recovered. What action would you take?()A Initiate an incomplete recovery operation using RMAN.B Copy the table from a development database.C Advise the user to rekey the data.D Perform a Flashback Drop operation.E Perform a Flashback Recovery operation.

单选题
A developer calls and reports that he accidentally dropped an important lookup table from a production database. He needs the table to be recovered. What action would you take?()
A

 Initiate an incomplete recovery operation using RMAN.

B

 Copy the table from a development database.

C

 Advise the user to rekey the data.

D

 Perform a Flashback Drop operation.

E

 Perform a Flashback Recovery operation.


参考解析

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单选题A developer calls and reports that he accidentally dropped an important lookup table from a production database. He needs the table to be recovered. What action would you take?()A Initiate an incomplete recovery operation using RMAN.B Copy the table from a development database.C Advise the user to rekey the data.D Perform a Flashback Drop operation.E Perform a Flashback Recovery operation.

单选题In which scenario will you use the Flashback Transaction Query feature?()A when you want to restore an important table that is dropped from the Recycle BinB when you want to obtain the SQL statements to undo the deletion of some important records from a table by a transactionCwhen you want to restore a dropped user’s schemaD when a row of a table is updated many times within a specific time period and you want all the versions of the row in the specified time period

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单选题You are working on an Oracle Database 10g database that operates in the ARCHIVELOG mode. At 06:00 p.m., you discovered that a table in the SYSTEM tablespace that does not belong to the data dictionary was dropped at 03:00 p.m. What would you do to recover the table?()A use the Flashback Transaction Query feature to identify the relevant SQL statement and use it to undrop the tableB restore the entire database from the most recent backup and open itC recover the table by using the Flashback Table featureD perform point-in-time recovery to recover the table

单选题A full backup of your database named DB1 is created automatically at midnight every day. Differential backups of DB1 occur twice each day at 10:00 and at 16:00. A database snapshot is created every day at noon. A developer reports that he accidentally dropped the Pricelist table in DB1 at 12:30. The last update to Pricelist occurred one week ago. You need to recover the Pricelist table. You want to achieve this goal by using the minimum amount of administrative effort. You must also minimize the amount of data that is lost. What should you do?()A Restore the most recent backup into a new database named DB1bak. Apply the most recent differential backup. Copy the Pricelist table from DB1bak to DB1. B Delete all database snapshots except the most recent one. Restore DB1 from the most recent database snapshot. C Recover DB1 from the most recent backup. Apply the most recent differential backup. D Copy the Pricelist table from the most recent database snapshot into DB1.

单选题You work with a SQL Server 2005 database that provides banking information for customers. You want customers to see banking reports that combine data that is retrieved from the database with real-time investment information that comes from a Web service provided by a third party. The investment information must be current when the reports are executed. You need to create the appropriate objects that support the reports. What should you do?()APublish the data in the database as an XML Web service by using the FOR XML AUTO clause.BCreate a table to store the banking information for each customer. Create a trigger that fires when data is inserted into the table that joins with the data coming from the Web service.CCreate a Transact-SQL stored procedure that uses a temporary table to store the banking information for each customer. Update the table with the values from the Web service.DHave a developer in TestKing.com create an assembly that calls the remote Web service.Create a CLR function by using the assembly. Call the CLR function and combine the results with banking information in the database.

单选题A support engineer reports that inserting new sales transactions in a SQL Server 2005 database results in an error. You investigate the error. You discover that in one of the databases, a developer has accidentally deleted some data in a table that is critical for transaction processing. The database uses the full recovery model. You need to restore the table. You need to achieve this goal without affecting the availability of other data in the database.  What should you do?()A Back up the current transaction log. Restore the database with a different name and stop at the point just before the data loss. Copy the table back into the original database.B Back up the current transaction log. Restore the database to the point just before the data loss.C Restore the database from the existing backup files to a time just before the data loss.D Restore the database to the point of the last full backup.

单选题In your production database, users report that they are unable to generate reports on an important table because it does not contain any data. While investigating the reason, you realize that another user executed the TRUNCATE TABLE command, which accidentally caused the data to be lost. Now you want to recover the lost data of the table without affecting objects in other schemas. Which method must you use to recover the lost data?()AComplete Recovery with online redo logBComplete Recovery with archived redo logCTablespace Point-in-Time Recovery (TSPITR)DIncomplete Recovery with system change number (SCN)

单选题You are maintaining the database in Oracle10g. You are performing an incomplete recovery by using RMAN because an important table, EMPLOYEE, is dropped and purged from the Recycle Bin. Which statement is NOT true regarding an incomplete recovery?()A The target database must be in the MOUNT mode to ensure restoration of the datafiles.B You can restore the datafiles from the backup by using the RMAN utility only if the backups were taken using the RMAN utility.C The control file must be recreated.D The database must be opened with the RESETLOGS option.

单选题A support engineer reports that inserting new sales transactions in a SQL Server 2005 database results in an error. You investigate the error. You discover that in one of the databases, a developer has accidentally deleted some data in a table that is critical for transaction processing. The database uses the full recovery model. You need to restore the table. You need to achieve this goal without affecting the availability of other data in the database. What should you do?()ABack up the current transaction log. Restore the database with a different name and stop at the point just before the data loss. Copy the table back into the original database.BBack up the current transaction log. Restore the database to the point just before the data loss.CRestore the database from the existing backup files to a time just before the data loss.DRestore the database to the point of the last full backup.

单选题A full backup of your database named DB1 is created automatically at midnight every day.Differential backups of DB1 occur twice each day at 10:00 and at 16:00. A database snapshot is created every day at noon. A developer reports that he accidentally dropped the Pricelist table in DB1 at 12:30. The last update to Pricelist occurred one week ago. You need to recover the Pricelist table. You want to achieve this goal by using the minimum amount of administrative effort. You must also minimize the amount of data that is lost. What should you do?()ARestore the most recent backup into a new database named DB1bak. Apply the most recent differential backup. Copy the Pricelist table from DB1bak to DB1.BDelete all database snapshots except the most recent one. Restore DB1 from the most recent database snapshot.CRecover DB1 from the most recent backup. Apply the most recent differential backup.DCopy the Pricelist table from the most recent database snapshot into DB1.

单选题In which scenario will you perform a user-managed incomplete recovery?()A when a table is dropped and stored in the Recycle BinBwhen a table is dropped and purged from the Recycle BinC when you are required to recover an existing table to its previous stateD when you are required to view all the versions of a row of an existing table between a specific time period

单选题On Monday, you dropped the DEPT table from your schema and then you re-created the DEPT table in your schema. On Wednesday, you have a requirement to restore the DEPT table from the recycle bin. Which statement is correct?()A You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table with the name DEPT already exists in your schema.B You can restore the DEPT table by using the Oracle Flashback Drop feature, provided you use the RENAME TO clause.C You cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of the recycle bin are purged every 12 hours by default.D You can restore the DEPT table by using the Oracle Flashback Drop feature and a system-generated name will be assigned to the restored table.

单选题In which scenario will you perform an incomplete recovery?()A when a table is dropped and stored in the Recycle BinB when all the control files are deletedC when a member of a multiplexed redo log group is droppedD when you are required to recover a table to its previous state

单选题You are maintaining your database in ARCHIVELOG mode. An important table, SCOTT.EMPLOYEE, is dropped and purged from the Recycle Bin on Monday at 2:00 P.M. You do not use RMAN to perform backups. You performed the last full user-managed backup at 9:00 P.M. on Sunday.  How will you recover the dropped table, SCOTT.EMPLOYEE?()A by using the Flashback Table featureB by using the Flashback Database featureC by performing incomplete recovery using RMAN utilityD by performing incomplete recovery using user-managed recovery

单选题In your production database, users report that they are unable to generate reports on an important table because it does not contain any data. While investigating the reason, you realize that another user executed the TRUNCATE TABLE command, which accidentally caused the data to be lost. Now you want to recover the lost data of the table without affecting objects in other schemas.  Which method must you use to recover the lost data?()A Complete Recovery with online redo logB Complete Recovery with archived redo logC Tablespace Point-in-Time Recovery (TSPITR)D Incomplete Recovery with system change number (SCN)