单选题You work as a database administrator for Supportcenter.cn. In your production database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been config

题目
单选题
You work as a database administrator for Supportcenter.cn. In your production database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been configured to accommodate any changes in the size of the memory structures. At this is production database， you want to accomplish this task with no impact on the user’s connections. Which activity must you have completed before accomplishing this task？（）
A

You must have started the database instance in restricted mode.

B

You must have started the database instance inNORMALmode.

C

You must have started the database instance with server parameter file.

D

You must have started the database instance but must not have mounted.

E

You must have started the database instance but must not have opened.

相似考题

1.You work as a database administrator for Supportcenter.cn. You have been asked to use a centralized administrative tool to administer your database servers and application servers. In order to achieve the objective， which component would you configure on each database server？（）A、Database ControlB、Management ServerC、Management RepositoryD、Application Server ControlE、Oracle Management Agent

2.You work as a database administrator for Supportcenter.cn. The database is open. A media failure has occurred， resulting in loss of all the control files in your database. Which statement regarding the database instance is true in this scenario？（）A、The instance would hang.B、The instance needs to be shut down.C、The instance would be in the open state.D、The instance would abort in such cases.E、The instance would be in the open and invalid state.F、The instance would in the open state， but all the background processes will be restarted.

3. You work as a database administrator for Certkiller .com. In your production  database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been configured to accommodate any changes in the size of the memory structures. At this is production database， you want to accomplish this task with no impact on the user’s connections.  Which activity must you have completed before accomplishing this task？（）A、You must have started the database instance in restricted mode.B、You must have started the database instance inNORMALmode.C、You must have started the database instance with server parameter file.D、You must have started the database instance but must not have mounted.E、You must have started the database instance but must not have opened.

4.You work as a database administrator at Certkiller .com. Your production database uses an Automatic Storage Management （ASM） instance to manage its files. You want to add a new disk group to the ASM instance to manage the increased data load. What action would you perform to include the new disk group in the ASM instance without causing any impact on the currently connected users？（）A、 mount the new disk group in the ASM instanceB、 restart the ASM instance and the production database instanceC、 register the new disk groups in the production database instanceD、 restart the ASM instance without restarting the production database instanceE、 include the new disk group in the ASM_DISKSTRING parameter in the parameter file and restart the ASM instance

参考答案和解析
正确答案： C
解析： 暂无解析
更多“单选题You work as a database administrator for Supportcenter.cn. In your production database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been config”相关问题

  • 第1题：

    Automatic Shared Memory Management （ASMM） has been enabled for your database instance.  Theinitialization parameters for the components that are managed by ASMM are not set. After observing theeffects of ASSM， you executed the following command： SQL> ALTER SYSTEM SET DB_CACHE_SIZE = 100M；  Which statement is true in this scenario（）

    • A、The minimum memory size for the database buffer cache is set to 100 mb.
    • B、The maximum memory size that can be obtained by the database buffer cache during ASMM is set to100 mb
    • C、The minimum memory size allocated for a server process in the database buffer cache in dedicatedmode is set to 100 mb.
    • D、The maximum memory size from the database buffer cache that can be released for dynamicdistribution during ASMM is set to 100 mb

    正确答案:A

  • 第2题：

    You work as a database administrator for Supportcenter.cn. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated.  What could be the reason for this problem？（）

    • A、The advisory memory has been turned off.
    • B、The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.
    • C、The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.
    • D、The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.
    • E、The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.

    正确答案:C

  • 第3题：

    You work as a database administrator for Supportcenter.cn. Your database is opened inNOARCHIVEKLOG mode. You decide to place the database in ARCHIVELOG mode. How would you do this？（）

    • A、Execute the ALTER DATABASE ARCHIVELOG statement
    • B、Select ARCHIVELOG option in the database control and restart the database to apply the changes.
    • C、Shut down and start the instance， and in the NOMOUNT state execute the ALTER DATABASE ARCHIVELOG statement.
    • D、Shut down and start the instance， mount the database， then execute the ALTER DATABASE ARCHIVELOG statement.

    正确答案:B,D

  • 第4题：

    You work as a database administrator for Supportcenter.cn. 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？（）

    • A、Restore all the data files and open the database
    • B、Create the data file and perform tablespace recovery
    • C、No need to restore any file， just recover the database
    • D、Restore only the system data file and recover the database
    • E、Restore only lost date file and performtablespacerecovery

    正确答案:A

  • 第5题：

    You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance which is named Instance01. Instance01 contains a database which is named Dworks. The bulk-logged recovery mode is used by the Dworks database. You log ship the Dworks database through a WAN link. A scheduled job rebuilds the indexes of the Dworks database. You find that the size of the log backups for log shipping has been enlarged by the job. Now you have to reduce the size of the log backup.  So what action should you perform to achieve this goal？（）  

    • A、You should recreate the indexes. 
    • B、You should compress the log file backups 
    • C、You should make the Dworks database use the Full recovery mode 
    • D、You should make the Dworks database use the Simple recovery mode.

    正确答案:B

  • 第6题：

    单选题
    You work as a database administrator at Certkiller .com. Your production database uses an Automatic Storage Management （ASM） instance to manage its files. You want to add a new disk group to the ASM instance to manage the increased data load. What action would you perform to include the new disk group in the ASM instance without causing any impact on the currently connected users？（）
    A

     mount the new disk group in the ASM instance

    B

     restart the ASM instance and the production database instance

    C

     register the new disk groups in the production database instance

    D

     restart the ASM instance without restarting the production database instance

    E

     include the new disk group in the ASM_DISKSTRING parameter in the parameter file and restart the ASM instance


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    You observe that a database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine that required size of the database buffer cache？ （）
    A

     Memory Advisor

    B

     Segment Advisor

    C

     SQL Tuning Advisor

    D

     SQL Access Advisor

    E

     Automatic Database Diagnostic Monitor （ADDM）


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    You work as a database administrator for Supportcenter.cn. 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？（）
    A

    Restore all the data files and open the database

    B

    Create the data file and perform tablespace recovery

    C

    No need to restore any file， just recover the database

    D

    Restore only the system data file and recover the database

    E

    Restore only lost date file and performtablespacerecovery


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    You work as a database administrator for Certkiller .com. In your production  database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been configured to accommodate any changes in the size of the memory structures. At this is production database， you want to accomplish this task with no impact on the user’s connections.  Which activity must you have completed before accomplishing this task？（）
    A

    You must have started the database instance in restricted mode.

    B

    You must have started the database instance inNORMALmode.

    C

    You must have started the database instance with server parameter file.

    D

    You must have started the database instance but must not have mounted.

    E

    You must have started the database instance but must not have opened.


    正确答案： E
    解析： 暂无解析

  • 第10题：

    单选题
    You work as a database administrator for Certkiller .com. You find that the database performance degrades while you backup the Certkiller database using Recovery Manager （RMAN）. The Certkiller database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason.  Which action would you consider to overcome the performance degradation？（）
    A

    Configure Java Pool to cache the java objects.

    B

    Configure Streams Pool to enable parallel processing.

    C

    Increase Shared Pool size to cache more PL/SQL objects.

    D

    Increase Database Buffer Cache size to increase cache hits.

    E

    Configure Large Pool to be used by RMAN and shared server.

    F

    Increase the total System Global Area （SGA） size to increase memory hits.


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Automatic Shared Memory Management （ASMM） has been enabled for your database instance.  Theinitialization parameters for the components that are managed by ASMM are not set. After observing theeffects of ASSM， you executed the following command： SQL> ALTER SYSTEM SET DB_CACHE_SIZE = 100M；  Which statement is true in this scenario（）
    A

    The minimum memory size for the database buffer cache is set to 100 mb.

    B

    The maximum memory size that can be obtained by the database buffer cache during ASMM is set to100 mb

    C

    The minimum memory size allocated for a server process in the database buffer cache in dedicatedmode is set to 100 mb.

    D

    The maximum memory size from the database buffer cache that can be released for dynamicdistribution during ASMM is set to 100 mb


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance which is named Instance01. Instance01 contains a database which is named Dworks. The bulk-logged recovery mode is used by the Dworks database. You log ship the Dworks database through a WAN link. A scheduled job rebuilds the indexes of the Dworks database. You find that the size of the log backups for log shipping has been enlarged by the job. Now you have to reduce the size of the log backup.  So what action should you perform to achieve this goal？（）
    A

    You should recreate the indexes. 

    B

    You should compress the log file backups 

    C

    You should make the Dworks database use the Full recovery mode 

    D

    You should make the Dworks database use the Simple recovery mode.


    正确答案： B
    解析： 暂无解析

  • 第13题：

    You work as a database administrator for Certkiller .com. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated.  What could be the reason for this problem？（）

    • A、The advisory memory has been turned off.
    • B、The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.
    • C、The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.
    • D、The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.
    • E、The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.

    正确答案:C

  • 第14题：

    You work as a database administrator for Supportcenter.cn. In a production environment， users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response？（）

    • A、The trace file
    • B、The fixed views
    • C、The data dictionary views
    • D、The operating system log fields
    • E、The dynamic performance views.

    正确答案:E

  • 第15题：

    You work as a database administrator for Certkiller .com. The database is open. A media failure has occurred， resulting in loss of all the control files in your database. Which statement regarding the database instance is true in this scenario？（）

    • A、The instance would hang.
    • B、The instance needs to be shut down.
    • C、The instance would be in the open state.
    • D、The instance would abort in such cases.
    • E、The instance would be in the open and invalid state.
    • F、The instance would in the open state， but all the background processes will be restarted.

    正确答案:D

  • 第16题：

    You work as a database administrator for Supportcenter.cn. In your production database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been configured to accommodate any changes in the size of the memory structures. At this is production database， you want to accomplish this task with no impact on the user’s connections. Which activity must you have completed before accomplishing this task？（）

    • A、You must have started the database instance in restricted mode.
    • B、You must have started the database instance inNORMALmode.
    • C、You must have started the database instance with server parameter file.
    • D、You must have started the database instance but must not have mounted.
    • E、You must have started the database instance but must not have opened.

    正确答案:C

  • 第17题：

    You work as a database administrator for Supportcenter.cn. You enabled tracing while creating a listener to your database. What additional information is available to you when you enable tracing？（）

    • A、Information about each Oracle Net connection.
    • B、Information about each entry in theLinstener.orafile
    • C、Information about the changed done in the database
    • D、Information about the different listeners in your system
    • E、Information about all thenondatabasefiles required to operate the database

    正确答案:A

  • 第18题：

    单选题
    You work as a database administrator for Supportcenter.cn. You enabled tracing while creating a listener to your database. What additional information is available to you when you enable tracing？（）
    A

    Information about each Oracle Net connection.

    B

    Information about each entry in theLinstener.orafile

    C

    Information about the changed done in the database

    D

    Information about the different listeners in your system

    E

    Information about all thenondatabasefiles required to operate the database


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    You work as a database administrator for Supportcenter.cn. The database is open. A media failure has occurred， resulting in loss of all the control files in your database. Which statement regarding the database instance is true in this scenario？（）
    A

    The instance would hang.

    B

    The instance needs to be shut down.

    C

    The instance would be in the open state.

    D

    The instance would abort in such cases.

    E

    The instance would be in the open and invalid state.

    F

    The instance would in the open state， but all the background processes will be restarted.


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    You work as a database administrator for Certkiller .com. The database is open. A media failure has occurred， resulting in loss of all the control files in your database. Which statement regarding the database instance is true in this scenario？（）
    A

    The instance would hang.

    B

    The instance needs to be shut down.

    C

    The instance would be in the open state.

    D

    The instance would abort in such cases.

    E

    The instance would be in the open and invalid state.

    F

    The instance would in the open state， but all the background processes will be restarted.


    正确答案： F
    解析： 暂无解析

  • 第21题：

    单选题
    You work as a database administrator for Supportcenter.cn. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated.  What could be the reason for this problem？（）
    A

    The advisory memory has been turned off.

    B

    The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.

    C

    The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.

    D

    The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.

    E

    The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.


    正确答案： E
    解析： 暂无解析

  • 第22题：

    单选题
    You work as a database administrator for Supportcenter.cn. In a production environment， users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response？（）
    A

    The trace file

    B

    The fixed views

    C

    The data dictionary views

    D

    The operating system log fields

    E

    The dynamic performance views.


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks.  Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）
    A

    Memory Advisor

    B

    Segment Advisor

    C

    SQL Tuning Advisor

    D

    SQL Access Advisor

    E

    Automatic Database Diagnostic Monitor （ADDM）


    正确答案： C
    解析： 暂无解析

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