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单选题You have issued a SHUTDOWN ABORT command to bring down your database instance. Consider the stepsthat will be performed later when you open the database: 1. SGA is allocated. 2. Control file is read. 3. Redo log files are read. 4. Instance recovery is 

题目
单选题
You have issued a SHUTDOWN ABORT command to bring down your database instance. Consider the stepsthat will be performed later when you open the database: 1. SGA is allocated. 2. Control file is read. 3. Redo log files are read. 4. Instance recovery is started. 5. Background processes are started. 6. Data files are checked for consistency. 7. Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()
A

7, 1, 5, 2, 3, 6, 4

B

1, 2, 3,7, 5, 6, 4

C

7, 1, 4, 5, 2, 3, 6

D

1, 7, 5, 4, 2, 3, 6


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  • 第1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?()

    • A、Start the instance and open the database, instance recovery automatically recoverscontrol files
    • B、Create a file based on the contents of the trace file and save it to the control file locations and start the database
    • C、Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)
    • D、Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
    • E、Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

    正确答案:D

  • 第2题:

    You work as a database administrator for Certkiller .com. Your database is in the MOUNT state and you execute the following command to open it ALTER DATABASE OPEN; What two actions are performed as a result of this command?()

    • A、All control files are opened
    • B、All redo files are opened
    • C、The password file is opened
    • D、The parameter file is opened
    • E、All online data files are opened

    正确答案:B,E

  • 第3题:

    You work as a database administrator for Supportcenter.cn. You started the instance using theinit.orafile. You have two control files and three redo log groups in your database. You decided to protect the database against failures by adding one more control file. Which file is the appropriate way to perform this task?()

    • A、Shut down the instance, copy the control file to the third location and open the database.
    • B、Abort the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.
    • C、Copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile, restart the instance and open the database.
    • D、Shut down the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.
    • E、Shut down the instance, startup in the mount state, copy the control file to the third location, modify the CONTROL_FILES parameter ininit.oraand open the database.

    正确答案:D

  • 第4题:

    You are working on a database, where you have three redo log groups. When the database is down for a backup, an operating system (OS) user deletes all the redo log files in a group. What will happen when you open your database?()

    • A、 The instance starts, the database is mounted, but efforts to open the database fail, and an error about the missing redo log group is displayed.
    • B、 Before the instance starts, you receive an error about the missing redo log files of a group.
    • C、 The instance starts and the database opens with an error message written to the alert log file.
    • D、 The instance starts and the database opens because two redo log groups still exist.
    • E、 The instance starts and the database opens, but every attempt to write to redo log files fails with an error.

    正确答案:A

  • 第5题:

    You have lost all your database control files. To recover them, you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact.  Which of the following is true regarding your recovery?()  

    • A、 You will need to open the database with the resetlogs command.
    • B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.
    • C、 You will use the resetlogs version of the create controlfile command.
    • D、 You will use the noresetlogs version of the create controlfile command.
    • E、 You will use the trace file to create a backup control file, and then you will recover the database with the recover database using backup controlfile command

    正确答案:D

  • 第6题:

    单选题
    You work as a database administrator for Supportcenter.cn. You started the instance using theinit.orafile. You have two control files and three redo log groups in your database. You decided to protect the database against failures by adding one more control file. Which file is the appropriate way to perform this task?()
    A

    Shut down the instance, copy the control file to the third location and open the database.

    B

    Abort the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.

    C

    Copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile, restart the instance and open the database.

    D

    Shut down the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.

    E

    Shut down the instance, startup in the mount state, copy the control file to the third location, modify the CONTROL_FILES parameter ininit.oraand open the database.


    正确答案: D
    解析: 暂无解析

  • 第7题:

    单选题
    The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. Oneof the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file:ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3; Which action should you perform immediately after using this command?()
    A

    You should perform a log switch

    B

    You should make a backup of the database

    C

    You should switch the database to the NONARCHIVELOG mode

    D

    You should shut down the database instance and perform a complete database recovery


    正确答案: C
    解析: 暂无解析

  • 第8题:

    单选题
    You used the IMMEDIATE option to shut down your database instance. Consider the steps that  mayoccur when a database instance is started and database is opened:  1:SGA is allocated.  2:Control file is read.  3:Redo log files are opened.  4:Instance recovery is started.  5:Background processes are started.  6:Data file headers are checked for consistency.  7:Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()
    A

    7,1,5,2,3,6,4

    B

    1,5,7,2,3,6;step 4 is not required

    C

    7,1,5,2,3,6;step 4 is not required

    D

    1,2,3,5,6,4;step 7 is not required


    正确答案: B
    解析: 暂无解析

  • 第9题:

    单选题
    You work as a database administrator for Certkiller .com. 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?()
    A

    Start the instance and open the database, instance recovery automatically recovers control files 

    B

    Create a file based on the contents of the trace file and save it to the control file locations and start the database 

    C

    Re-create the database (The recovery of the control file is not possible because you have lost all the control files.) 

    D

    Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file. 

    E

    Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    You are working on a database, where you have three redo log groups. When the database is down for a backup, an operating system (OS) user deletes all the redo log files in a group. What will happen when you open your database?()
    A

     The instance starts, the database is mounted, but efforts to open the database fail, and an error about the missing redo log group is displayed.

    B

     Before the instance starts, you receive an error about the missing redo log files of a group.

    C

     The instance starts and the database opens with an error message written to the alert log file.

    D

     The instance starts and the database opens because two redo log groups still exist.

    E

     The instance starts and the database opens, but every attempt to write to redo log files fails with an error.


    正确答案: C
    解析: 暂无解析

  • 第11题:

    多选题
    After performing a clean shut down of the database instance for maintenance, you mount thedatabase and then execute a command to open the database: SQL> ALTER DATABASE OPEN;  Which two statements are true()
    A

    The online redo log files and online data files are opened.

    B

    All the online data file headers are checked for consistency.

    C

    Instance recovery is performed before opening the database.

    D

    The path and existence of all the log file members are checked


    正确答案: D,C
    解析: 暂无解析

  • 第12题:

    单选题
    You have issued a SHUTDOWN ABORT command to bring down your database instance. Considerthe steps that will be performed later when you open the database:  1:SGA is allocated.  2:Control file is read.  3:Redo log files are read.  4:Instance recovery is started.  5:Background processes are started.  6:Data files are checked for consistency.  7:Server parameter file or the initialization parameter file is read. Which option has the correct order in which these steps occur()
    A

    7,1,5,2,3,6,4

    B

    1,2,3,7,5,6,4

    C

    7,1,4,5,2,3,6

    D

    1,7,5,4,2,3,6


    正确答案: D
    解析: 暂无解析

  • 第13题:

    You used the IMMEDIATE option to shut down your database instance. Consider the steps that  mayoccur when a database instance is started and database is opened:  1:SGA is allocated.  2:Control file is read.  3:Redo log files are opened.  4:Instance recovery is started.  5:Background processes are started.  6:Data file headers are checked for consistency.  7:Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()

    • A、7,1,5,2,3,6,4
    • B、1,5,7,2,3,6;step 4 is not required
    • C、7,1,5,2,3,6;step 4 is not required
    • D、1,2,3,5,6,4;step 7 is not required

    正确答案:C

  • 第14题:

    After performing a clean shut down of the database instance for maintenance, you mount thedatabase and then execute a command to open the database: SQL> ALTER DATABASE OPEN;  Which two statements are true()

    • A、The online redo log files and online data files are opened.
    • B、All the online data file headers are checked for consistency.
    • C、Instance recovery is performed before opening the database.
    • D、The path and existence of all the log file members are checked

    正确答案:A,B

  • 第15题:

    You work as a database administrator for Certkiller .com. 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?()

    • A、Start the instance and open the database, instance recovery automatically recovers control files 
    • B、Create a file based on the contents of the trace file and save it to the control file locations and start the database 
    • C、Re-create the database (The recovery of the control file is not possible because you have lost all the control files.) 
    • D、Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file. 
    • E、Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

    正确答案:D

  • 第16题:

    You have issued a SHUTDOWN ABORT command to bring down your database instance. Consider the stepsthat will be performed later when you open the database: 1. SGA is allocated. 2. Control file is read. 3. Redo log files are read. 4. Instance recovery is started. 5. Background processes are started. 6. Data files are checked for consistency. 7. Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()

    • A、7, 1, 5, 2, 3, 6, 4
    • B、1, 2, 3,7, 5, 6, 4
    • C、7, 1, 4, 5, 2, 3, 6
    • D、1, 7, 5, 4, 2, 3, 6

    正确答案:A

  • 第17题:

    You used the IMMEDIATE option to shut down your database instance. Consider the steps that may occurwhen a database instance is started and database is opened: 1. SGA is allocated. 2. Control file is read. 3. Redo log files are opened.4. Instance recovery is started. 5. Background processes are started. 6. Data file headers are checked for consistency. 7. Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()

    • A、7, 1, 5, 2, 3, 6, 4
    • B、1, 5, 7, 2, 3, 6; step 4 is not required
    • C、7, 1, 5, 2, 3, 6; step 4 is not requiredThis document was downloaded from =>> http://www.amaderforum.com
    • D、1, 2, 3, 5, 6, 4; step 7 is not required

    正确答案:C

  • 第18题:

    多选题
    After performing a clean shut down of the database instance for maintenance, you mount the database andthen execute a command to open the database:SQL> ALTER DATABASE OPEN; Which two statements are true()
    A

    The online redo log files and online data files are opened.

    B

    All the online data file headers are checked for consistency.

    C

    Instance recovery is performed before opening the database.

    D

    The path and existence of all the log file members are checked


    正确答案: C,A
    解析: 暂无解析

  • 第19题:

    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?()
    A

    Start the instance and open the database, instance recovery automatically recoverscontrol files

    B

    Create a file based on the contents of the trace file and save it to the control file locations and start the database

    C

    Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)

    D

    Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

    E

    Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.


    正确答案: C
    解析: 暂无解析

  • 第20题:

    单选题
    You have issued a SHUTDOWN ABORT command to bring down your database instance. Consider the stepsthat will be performed later when you open the database: 1. SGA is allocated. 2. Control file is read. 3. Redo log files are read. 4. Instance recovery is started. 5. Background processes are started. 6. Data files are checked for consistency. 7. Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()
    A

    7, 1, 5, 2, 3, 6, 4

    B

    1, 2, 3,7, 5, 6, 4

    C

    7, 1, 4, 5, 2, 3, 6

    D

    1, 7, 5, 4, 2, 3, 6


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    You used the IMMEDIATE option to shut down your database instance. Consider the steps that may occurwhen a database instance is started and database is opened: 1. SGA is allocated. 2. Control file is read. 3. Redo log files are opened.4. Instance recovery is started. 5. Background processes are started. 6. Data file headers are checked for consistency. 7. Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()
    A

    7, 1, 5, 2, 3, 6, 4

    B

    1, 5, 7, 2, 3, 6; step 4 is not required

    C

    7, 1, 5, 2, 3, 6; step 4 is not requiredThis document was downloaded from =>> http://www.amaderforum.com

    D

    1, 2, 3, 5, 6, 4; step 7 is not required


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    You used the IMMEDIATE option to shut down your database instance. Consider the steps that may occurwhen a database instance is started and database is opened: 1. SGA is allocated. 2. Control file is read. 3. Redo log files are opened.4. Instance recovery is started. 5. Background processes are started. 6. Data file headers are checked for consistency. 7. Server parameter file or the initialization parameter file is read.  Which option has the correct order in which these steps occur()
    A

    7, 1, 5, 2, 3, 6, 4

    B

    1, 5, 7, 2, 3, 6; step 4 is not required

    C

    7, 1, 5, 2, 3, 6; step 4 is not requiredThis document was downloaded from =>> http://www.amaderforum.com

    D

    1, 2, 3, 5, 6, 4; step 7 is not required


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file:   ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3;   Which action should you perform immediately after using this command?()
    A

     You should perform a log switch

    B

     You should make a backup of the database

    C

     You should switch the database to the NONARCHIVELOG mode

    D

     You should shut down the database instance and perform a complete database recovery


    正确答案: B
    解析: 暂无解析