单选题Which of the following commands cannot be executed when the database open？（）A RECOVER DATABASEB RECOVER TABLESPACEC RECOVER DATAFILED ALTER DATABASE RECOVER DATAFILE

题目
单选题
Which of the following commands cannot be executed when the database open？（）
A

RECOVER DATABASE

B

RECOVER TABLESPACE

C

RECOVER DATAFILE

D

ALTER DATABASE RECOVER DATAFILE

相似考题

1.A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message:Which is the recommended sequence of operations you need to perform for the query successfully?（）A. Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace.B. Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online.C. Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.D. Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode.

2.A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message . Which is the recommended sequence of operations you need to perform for the query successfully?（）A、Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace. B、Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online. C、Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.D、Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode. 

3. You want to perform in incomplete recovery of your database.  You plan to use these commands to recover your database：  SET UNTIL TIME = ’2000-12-09：11：44：00’；  RESTORE DATABASE； RECOVER DATABASE；  How should the commands be executed？ （）A、Only the SET command must be within a RUN block.B、All commands should be executed at the RMAN prompt.C、All three commands must be within a single RUN block.D、Only the RESTORE and RECOVER commands must be within a single RUN block.

4.Your multitenant container database (CDB) contains three pluggable database (PDBs). You find that the control file is damaged. You plan to use RMAN to recover the control file. There are no startup triggers associated with the PDBs.Which three steps should you perform to recover the control file and make the database fully operational?（）A. Mount the container database (CDB) and restore the control file from the control file auto backup.B. Recover and open the CDB in NORMAL mode.C. Mount the CDB and then recover and open the database, with the RESETLOGS option.D. Open all the pluggable databases.E. Recover each pluggable database.F. Start the database instance in the nomount stage and restore the control file from control file auto backup.

更多“单选题Which of the following commands cannot be executed when the database open？（）A RECOVER DATABASEB RECOVER TABLESPACEC RECOVER DATAFILED ALTER DATABASE RECOVER DATAFILE”相关问题

  • 第1题：

    当误删除了SYSTEM表空间的数据文件之后，可以使用以下（）命令恢复该表空间。

    • A、RECOVER DATABASE
    • B、RECOVER TABLESPACE
    • C、REVOVER DATAFILE

    正确答案:B

  • 第2题：

    Which command is used to begin a tablespace point-in-time recovery？（）  

    • A、 Restore tablespace
    • B、 Recover tablespace
    • C、 Tablespace recover
    • D、 Recover to time
    • E、 recover datafile

    正确答案:B

  • 第3题：

    Which of the following represents the correct way to perform an online recovery of datafile 4， which is assigned to a tablespace called USERS？（）  

    • A、 shutdown restore datafile 4； recover datafile 4； alter database open；
    • B、 Sql alter database datafile 4 offline； restore datafile 4； recover datafile 4； alter database open；
    • C、 Sql alter database datafile 4 offline； restore datafile 4； Sql alter database datafile 4 online；
    • D、 Sql alter database datafile 4 offline； restore database datafile 4； recover database datafile 4；Sql alter database datafile 4 online；
    • E、 Sql alter database datafile 4 offline； restore datafile 4； recover datafile 4； Sql alter database datafile 4 online；

    正确答案:E

  • 第4题：

    What is the correct order of the following commands if you wanted to restore datafile 4， which was accidentally removed from the file system？（）   a. sql ’alter database datafile 4 online’ b. restore datafile 4 c. recover datafile 4  d. sql ’alter database datafile 4 offline’ e. startup  f. shutdown

    • A、 a， c， b， d
    • B、 d， b， c， a
    • C、 f， d， b， c， a， e
    • D、 c， a， b， d， f
    • E、 a， b， d， e

    正确答案:B

  • 第5题：

    Adam is working as a Database Administrator （DBA） for TeleSoft Corporation. His database is running in the ARCHIVELOG mode. During database startup， he discovers that one of the disks crashed， resulting in the permanent loss of a read-write USERS tablespace. The USERS01.dbf datafile belongs to the USERS tablespace and is 500 MB in size. He needs to recover the USERS tablespace from the backup. While reviewing the backup details， he discovers that the most recent available backup is five days old. This backup was taken when the USERS tablespace was read-only. After correcting the hardware problem that caused the failure， what should Adam do to recover the USERS tablespace？（）

    • A、 Restore the USERS01.dbf file from the backup， and open the database using the STARTUP command.
    • B、 Restore the USERS01.dbf file using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.
    • C、 Restore the USERS01.dbf file from the backup， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.
    • D、 Restore the USERS01.dbf file from the backup and change the status of the USERS tablespace from read-only to read-write using the ALTER TABLESPACE USERS READ WRITE statement. Then， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.

    正确答案:C

  • 第6题：

    Your ARCHIVELOG-mode database has lost three datafiles and shut down. One is assigned to the SYSTEM tablespace and two are assigned to the USERS tablespace. You can choose from the following steps to recover your database：   a. Restore the three database datafiles that were lost.  b. Issue the Startup Mount command to mount the database.  c. Issue the alter database open command.  d. Issue the alter database open resetlogs command.  e. Recover the database using the recover database command. f. Recover the datafiles with the recover datafile command.  g. Take the datafiles offline.  Which is the correct order of these steps in this case？（）

    • A、a， b， e， c
    • B、b， e， d
    • C、a， b， d， c
    • D、b， g， c， f
    • E、a， b， d， f

    正确答案:A

  • 第7题：

    单选题
    A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message . Which is the recommended sequence of operations you need to perform for the query successfully?（）
    A

    Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace. 

    B

    Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online. 

    C

    Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.

    D

    Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode. 


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following represents the correct way to perform an online recovery of datafile 4， which is assigned to a tablespace called USERS？（）
    A

     shutdown restore datafile 4； recover datafile 4； alter database open；

    B

     Sql alter database datafile 4 offline； restore datafile 4； recover datafile 4； alter database open；

    C

     Sql alter database datafile 4 offline； restore datafile 4； Sql alter database datafile 4 online；

    D

     Sql alter database datafile 4 offline； restore database datafile 4； recover database datafile 4；Sql alter database datafile 4 online；

    E

     Sql alter database datafile 4 offline； restore datafile 4； recover datafile 4； Sql alter database datafile 4 online；


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Your database is in ARCHIVELOG mode. On Friday evening， you perform an online database backup by using the BACKUP DATABASE command at the Recovery Manager （RMAN） prompt and close the  database. On Monday， the System Administrator informs you about the failure of two hard disks. One of the lost disks contains two datafiles， HR1.DBF and HR2.DBF， both of which belong to a read/write tablespace named HR. The disk also contains a datafile， USERS.DBF， which belongs to a read/write tablespace named USERS. You need to restore and recover the database backup that was performed on Friday evening. After mounting the database， you issue the following RMAN commands：        RMAN>RESTORE DATABASE；        RMAN>RECOVER DATABASE；   After successfully executing these RMAN commands， you issue the following statement using SQL*Plus：        SQL>ALTER DATABASE OPEN；   You receive the following errors when attempting to open the database：        ORA-01157： cannot identify/lock data file 10 see DBWR trace file        ORA-01110： data file 10： ’D:///USERS.DBF’   What is the cause of these errors？（）
    A

     The USERS.DBF datafile is corrupted and cannot be restored by RMAN.

    B

     The USERS.DBF datafile was not backed up using the RMAN BACKUP DATABASE command.

    C

     The USERS.DBF datafile was not restored using the RMAN RESTORE DATABASE command.

    D

     The USERS.DBF datafile was not recovered using the RMAN RECOVER DATABASE command.


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message： Which is the recommended sequence of operations you need to perform for the query successfully？（）
    A

     Drop the affected tablespace，re-create the tablespace，restore the datafiles，and the tablespace.

    B

     Take the affected datafile offline（if not already offline），restore the damaged image of the datafile，and then bring it online.

    C

     Restart the database in MOUNT mode，restore the damaged datafile，recover the datafile and then open the database with resetlogs.

    D

     Put the database in RESTRICTED mode，restore all the datafiles in the affected datafile and recover the tablespace，and then put the database in normal operational mode.


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Which command is used to begin a tablespace point-in-time recovery？（）
    A

     Restore tablespace

    B

     Recover tablespace

    C

     Tablespace recover

    D

     Recover to time

    E

     recover datafile


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Your ARCHIVELOG-mode database has lost three datafiles and shut down. One is assigned to the SYSTEM tablespace and two are assigned to the USERS tablespace. You can choose from the following steps to recover your database：   a. Restore the three database datafiles that were lost.  b. Issue the Startup Mount command to mount the database.  c. Issue the alter database open command.  d. Issue the alter database open resetlogs command.  e. Recover the database using the recover database command. f. Recover the datafiles with the recover datafile command.  g. Take the datafiles offline.  Which is the correct order of these steps in this case？（）
    A

    a， b， e， c

    B

    b， e， d

    C

    a， b， d， c

    D

    b， g， c， f

    E

    a， b， d， f


    正确答案： D
    解析： 暂无解析

  • 第13题：

    You have lost datafile 4 from your database. Which is typically the fastest way to restore your database? （）

    • A、Restore and recover the datafile. 
    • B、Restore and recover the tablespace. 
    • C、Restore and recover the database. 
    • D、Restore and recover the control file. 
    • E、Restore and recover the parameter file.

    正确答案:A

  • 第14题：

    In which case would you use the Flashback Database feature to perform a recovery？（）

    • A、to recover a dropped tablespace
    • B、to recover data from a truncated table
    • C、to recover a data file that has been shrunk
    • D、to recover a database to the state that existed before the RESETLOGS operation

    正确答案:B

  • 第15题：

    Which of the following commands cannot be executed when the database open？（）

    • A、RECOVER DATABASE
    • B、RECOVER TABLESPACE
    • C、RECOVER DATAFILE
    • D、ALTER DATABASE RECOVER DATAFILE

    正确答案:B

  • 第16题：

    Your database is in ARCHIVELOG mode. On Friday evening， you perform an online database backup by using the BACKUP DATABASE command at the Recovery Manager （RMAN） prompt and close the  database. On Monday， the System Administrator informs you about the failure of two hard disks. One of the lost disks contains two datafiles， HR1.DBF and HR2.DBF， both of which belong to a read/write tablespace named HR. The disk also contains a datafile， USERS.DBF， which belongs to a read/write tablespace named USERS. You need to restore and recover the database backup that was performed on Friday evening. After mounting the database， you issue the following RMAN commands：        RMAN>RESTORE DATABASE；        RMAN>RECOVER DATABASE；   After successfully executing these RMAN commands， you issue the following statement using SQL*Plus：        SQL>ALTER DATABASE OPEN；   You receive the following errors when attempting to open the database：        ORA-01157： cannot identify/lock data file 10 see DBWR trace file        ORA-01110： data file 10： ’D:///USERS.DBF’   What is the cause of these errors？（）

    • A、 The USERS.DBF datafile is corrupted and cannot be restored by RMAN.
    • B、 The USERS.DBF datafile was not backed up using the RMAN BACKUP DATABASE command.
    • C、 The USERS.DBF datafile was not restored using the RMAN RESTORE DATABASE command.
    • D、 The USERS.DBF datafile was not recovered using the RMAN RECOVER DATABASE command.

    正确答案:C

  • 第17题：

    What will be the end result of this set of RMAN commands？（）   shutdown abort startup mount  restore datafile 4 until time ，，09/30/2008：15：00：00；  recover datafile 4 until time ，，09/29/2008：15：00：00；  alter database open resetlogs；

    • A、 Datafile 4 will be recovered until 9/30/2008 at 15：00 and the database will open.
    • B、 The restore command will fail.
    • C、 The recover command will fail.
    • D、 The alter database open resetlogs command will fail.
    • E、 All these commands will fail because they must be in the confines of a run block.

    正确答案:D

  • 第18题：

    单选题
    You want to perform in incomplete recovery of your database.  You plan to use these commands to recover your database：  SET UNTIL TIME = ’2000-12-09：11：44：00’；  RESTORE DATABASE； RECOVER DATABASE；  How should the commands be executed？ （）
    A

    Only the SET command must be within a RUN block.

    B

    All commands should be executed at the RMAN prompt.

    C

    All three commands must be within a single RUN block.

    D

    Only the RESTORE and RECOVER commands must be within a single RUN block.


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    You have lost datafile 4 from your database. Which is typically the fastest way to restore your database? （）
    A

    Restore and recover the datafile. 

    B

    Restore and recover the tablespace. 

    C

    Restore and recover the database. 

    D

    Restore and recover the control file. 

    E

    Restore and recover the parameter file.


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    What will be the end result of this set of RMAN commands？（）   shutdown abort startup mount  restore datafile 4 until time ，，09/30/2008：15：00：00；  recover datafile 4 until time ，，09/29/2008：15：00：00；  alter database open resetlogs；
    A

     Datafile 4 will be recovered until 9/30/2008 at 15：00 and the database will open.

    B

     The restore command will fail.

    C

     The recover command will fail.

    D

     The alter database open resetlogs command will fail.

    E

     All these commands will fail because they must be in the confines of a run block.


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    Adam is working as a Database Administrator （DBA） for TeleSoft Corporation. His database is running in the ARCHIVELOG mode. During database startup， he discovers that one of the disks crashed， resulting in the permanent loss of a read-write USERS tablespace. The USERS01.dbf datafile belongs to the USERS tablespace and is 500 MB in size. He needs to recover the USERS tablespace from the backup. While reviewing the backup details， he discovers that the most recent available backup is five days old. This backup was taken when the USERS tablespace was read-only. After correcting the hardware problem that caused the failure， what should Adam do to recover the USERS tablespace？（）
    A

     Restore the USERS01.dbf file from the backup， and open the database using the STARTUP command.

    B

     Restore the USERS01.dbf file using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.

    C

     Restore the USERS01.dbf file from the backup， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.

    D

     Restore the USERS01.dbf file from the backup and change the status of the USERS tablespace from read-only to read-write using the ALTER TABLESPACE USERS READ WRITE statement. Then， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    You have lost datafile 4 from your database. Which is typically the fastest way to restore your database？（）
    A

     Restore and recover the datafile.

    B

     Restore and recover the tablespace.

    C

     Restore and recover the database.

    D

     Restore and recover the control file.

    E

     Restore and recover the parameter file.


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    You have lost datafiles 1 and 3 from your database，and the database has crashed.  In what order should you perform the following steps to recover your database？（） 1. Take the datafiles that were lost offline.  2. startup mount the database  3. Issue the alter database open command. 4. Restore the datafiles that were lost  5. Recover the datafiles with the recover datafile command. 6. Bring the datafiles back online.  7. Recover the database with the recover database command.
    A

     2，1，3，4，5，6

    B

     2，4，5，3

    C

     4，7，3

    D

     2，4，7，3

    E

     2，7，3


    正确答案： E
    解析： 暂无解析

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