In which scenario do you use the Flashback Database feature？（）A、 when a table is dropped and you restore it from the Recycle BinB、 when a user’s schema is dropped and you recover the user’s schemaC、 when some incorrect data is inserted in the table and yo

题目

In which scenario do you use the Flashback Database feature？（）

  • A、 when a table is dropped and you restore it from the Recycle Bin
  • B、 when a user’s schema is dropped and you recover the user’s schema
  • C、 when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestamp
  • D、 when a row of a table is updated frequently and committed， and you view all the versions of the row within a specific duration
相似考题

1.You plan to use Flashback Drop feature to recover a dropped table SALES_EMP. No other table with the same name exists in the schema.You query RECYCLEBIN and find multiple entries for the SALES_EMP table as follows, You then issue the following statement to recover the table:SQL> FLASHBACK TABLE sales_emp TO BEFORE DROP;What would be the outcome of the precedent statement?（）A. It retrieves the latest version of the table from the recycle binB. It retrieves the oldest version of the table from the recycle binC. It retrieves the version of the table for which undo information is availableD. It returns an error because the table name is not specified as per the names in the OBJECT_NAME column

2.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.

3.In which scenario will you perform a cancel-based recovery？（）A、 when a tablespace is dropped and you have only RMAN-based backup of the databaseB、 when a table is dropped and stored in the Recycle BinC、 when you are required to recover an existing table to its previous stateD、 when a tablespace is dropped and you have only a user-managed full backup of the database

4.You have only two redo log groups and these groups get overwritten several times in a day. Your database operates in NOARCHIVELOG mode and user-managed consistent backups are performed every Sunday night. On Thursday morning， you find that an important table has been dropped and purged. With reference to this scenario， up to what point in time can the data be recovered？（）A、 until Thursday morningB、 until that point in time when the database is openedC、 until that point in time when the recovery is performedD、 until last Sunday’s backupE、 until that point in time when the table is dropped and purgedF、 until Wednesday evening

更多“In which scenario do you use the Flashback Database feature？（）A、 when a table is dropped and you restore it from the Recycle BinB、 when a user’s schema is dropped and you recover the user’s schemaC、 when some incorrect data is inserted in the table and yo”相关问题

  • 第1题：

    You are performing flashback of the EMPLOYEE table in SCOTT’s schema because some incorrect data was inserted into the table and committed by mistake. Which two clauses will you use in the FLASHBACK TABLE statement for using the Flashback Table feature？ （）

    • A、 RESETLOGS
    • B、 TO TIMESTAMP
    • C、 TO BEFORE DROP
    • D、 RENAME TO
    • E、 TO SCN

    正确答案:B,E

  • 第2题：

    In which scenario will you perform a user-managed incomplete recovery？（）

    • A、 when a table is dropped and stored in the Recycle Bin
    • B、when a table is dropped and purged from the Recycle Bin
    • C、 when you are required to recover an existing table to its previous state
    • D、 when you are required to view all the versions of a row of an existing table between a specific time period

    正确答案:B

  • 第3题：

    In which two scenarios should you issue the following command？（） FLASHBACK TABLE SCOTT.EMP TO TIMESTAMP SYSTIMESTAP- INTERVAL ’15’ MINUTE；

    • A、 when the schema of the user， SCOTT， was deleted by mistake 15 minutes ago
    • B、 when the table EMP of the SCOTT schema was dropped by mistake 15 minutes ago
    • C、 when some rows of the table， EMP， in the SCOTT schema were deleted by mistake 15 minutes ago
    • D、 when some incorrect values were inserted in the EMP table in the user Scott’s schema during the last 15 minutes
    • E、 never， because FLASHBACK TABLE is not a valid command in Oracle 10g.

    正确答案:C,D

  • 第4题：

    The RECYCLEBIN parameter is set to ON for your database. You drop a table，PRODUCTS，from the SCOTT schema.  Which two statements are true regarding the outcome of this action？（）

    • A、 All the related indexes and views are automatically dropped
    • B、 The flashback drop feature can recover only the table structure
    • C、 Only the related indexes are dropped whereas views are invalidated
    • D、 The flashback drop feature can recover both the table structure and its data

    正确答案:C,D

  • 第5题：

    In which scenario will you use the Flashback Version Query feature？（）

    • A、 when you want to restore a table that has been dropped from the Recycle Bin
    • B、 when you want to identify the transaction ID of the transaction that deleted some important records from a table
    • C、 when you want to recover the schema of a dropped user
    • D、when you want to restore a dropped tablespace

    正确答案:B

  • 第6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 table
    • B、 restore the entire database from the most recent backup and open it
    • C、 recover the table by using the Flashback Table feature
    • D、 perform point-in-time recovery to recover the table

    正确答案:D

  • 第7题：

    单选题
    In which scenario do you use the Flashback Database feature？（）
    A

     when a table is dropped and you restore it from the Recycle Bin

    B

     when a user’s schema is dropped and you recover the user’s schema

    C

     when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestamp

    D

     when a row of a table is updated frequently and committed， and you view all the versions of the row within a specific duration


    正确答案： B
    解析： 暂无解析

  • 第8题：

    多选题
    In which two scenarios should you issue the following command？（） FLASHBACK TABLE SCOTT.EMP TO TIMESTAMP SYSTIMESTAP- INTERVAL ’15’ MINUTE；
    A

    when the schema of the user， SCOTT， was deleted by mistake 15 minutes ago

    B

    when the table EMP of the SCOTT schema was dropped by mistake 15 minutes ago

    C

    when some rows of the table， EMP， in the SCOTT schema were deleted by mistake 15 minutes ago

    D

    when some incorrect values were inserted in the EMP table in the user Scott’s schema during the last 15 minutes

    E

    never， because FLASHBACK TABLE is not a valid command in Oracle 10g.


    正确答案： B,C
    解析： 暂无解析

  • 第9题：

    单选题
    On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use？（）
    A

    Flashback Drop

    B

    Flashback Table

    C

    Flashback Database

    D

    Flashback Version Query

    E

    Flashback Transaction Query


    正确答案： D
    解析： 暂无解析

  • 第10题：

    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 Bin

    B

    when a table is dropped and purged from the Recycle Bin

    C

     when you are required to recover an existing table to its previous state

    D

     when you are required to view all the versions of a row of an existing table between a specific time period


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    In which scenario will you perform an incomplete recovery？（）
    A

     when a table is dropped and stored in the Recycle Bin

    B

     when all the control files are deleted

    C

     when a member of a multiplexed redo log group is dropped

    D

     when you are required to recover a table to its previous state


    正确答案： C
    解析： 暂无解析

  • 第12题：

    多选题
    You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature？ （）
    A

    To recover a dropped table.

    B

    To recover a dropped schema.

    C

    To recover data from a truncated table.

    D

    To view changes made by all the transactions during a given period of time.

    E

    To view changes made by a single transaction during a given period of time.


    正确答案： B,D
    解析： 暂无解析

  • 第13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 Bin
    • B、 when you want to obtain the SQL statements to undo the deletion of some important records from a table by a transaction
    • C、when you want to restore a dropped user’s schema
    • D、 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

    正确答案:B

  • 第14题：

    Which two statements are correct regarding the Oracle Flashback Drop feature？ （）

    • A、 Recycle bin exists for the tables only in non-SYSTEM， locally managed tablespaces.
    • B、 You can flash back a dropped table provided row movement has been enabled on the table.
    • C、 If you drop an index before dropping its associated table， then the recovery of the index is not supported when you flash back the dropped table.
    • D、 When you execute the DROP TABLESPACE？ INCLUDING CONTENTS command， the objects in the tablespace are places in the recycle bin.
    • E、 When a dropped table is moved to the recycle bin， only the table is renamed to a system-generated name； its associated objects and constraints are not renamed.
    • F、 If you drop a table that is protected by the recycle bin， then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.

    正确答案:A,C

  • 第15题：

    You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature？ （）

    • A、 To recover a dropped table.
    • B、 To recover a dropped schema.
    • C、 To recover data from a truncated table.
    • D、 To view changes made by all the transactions during a given period of time.
    • E、 To view changes made by a single transaction during a given period of time.

    正确答案:D,E

  • 第16题：

    On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use？（）

    • A、Flashback Drop
    • B、Flashback Table
    • C、Flashback Database
    • D、Flashback Version Query
    • E、Flashback Transaction Query

    正确答案:C

  • 第17题：

    In which scenario will you perform an incomplete recovery？（）

    • A、 when a table is dropped and stored in the Recycle Bin
    • B、 when all the control files are deleted
    • C、 when a member of a multiplexed redo log group is dropped
    • D、 when you are required to recover a table to its previous state

    正确答案:B

  • 第18题：

    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 Bin

    B

     when you want to obtain the SQL statements to undo the deletion of some important records from a table by a transaction

    C

    when you want to restore a dropped user’s schema

    D

     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


    正确答案： D
    解析： 暂无解析

  • 第19题：

    多选题
    You are performing flashback of the EMPLOYEE table in SCOTT’s schema because some incorrect data was inserted into the table and committed by mistake. Which two clauses will you use in the FLASHBACK TABLE statement for using the Flashback Table feature？ （）
    A

    RESETLOGS

    B

    TO TIMESTAMP

    C

    TO BEFORE DROP

    D

    RENAME TO

    E

    TO SCN


    正确答案： C,D
    解析： 暂无解析

  • 第20题：

    单选题
    In which scenario will you perform a cancel-based recovery？（）
    A

     when a tablespace is dropped and you have only RMAN-based backup of the database

    B

     when a table is dropped and stored in the Recycle Bin

    C

     when you are required to recover an existing table to its previous state

    D

     when a tablespace is dropped and you have only a user-managed full backup of the database


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    On Monday， you dropped the DEPT table from your schema and then you re/x7fcreated 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 can restore the DEPT table by using the Oracle Flashback Drop feature， provided you use the RENAME TO clause.

    B

    You can restore the DEPT table by using the Oracle Flashback Drop feature and a system­generated name will be assigned to the restored table.

    C

    You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table withthe name DEPT already exists in your schema.

    D

    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.


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    In which scenario will you use the Flashback Version Query feature？（）
    A

     when you want to restore a table that has been dropped from the Recycle Bin

    B

     when you want to identify the transaction ID of the transaction that deleted some important records from a table

    C

     when you want to recover the schema of a dropped user

    D

    when you want to restore a dropped tablespace


    正确答案： C
    解析： 暂无解析

  • 第23题：

    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 feature

    B

     by using the Flashback Database feature

    C

     by performing incomplete recovery using RMAN utility

    D

     by performing incomplete recovery using user-managed recovery


    正确答案： C
    解析： 暂无解析

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