单选题You are working on an instance started using the SPFILE. You want to move the Flash Recovery Areaof your database to a new location. You want the Flashback log files to be stored in the new location. Given below are the steps to accomplish the task in random order:  1)Shut down the instance.  2)Change the value of the DB_RECOVERY_FILE_DEST initialization parameter to a new value.  3)Execute the ALTER DATABASE FLASHBACK OFF command.  4)Start up the instance and mount the database.  5)Execute the ALTER DATABASE FLASHBACKON command.  6)Open the database.  Select the correct order in which these tasks need to be performed. ()A2,1,4,3,5,6B1,4,3,2,6,5C1,4,2,6,3,5D3,2,1,4,5,6

单选题
You are working on an instance started using the SPFILE. You want to move the Flash Recovery Areaof your database to a new location. You want the Flashback log files to be stored in the new location. Given below are the steps to accomplish the task in random order:  1)Shut down the instance.  2)Change the value of the DB_RECOVERY_FILE_DEST initialization parameter to a new value.  3)Execute the ALTER DATABASE FLASHBACK OFF command.  4)Start up the instance and mount the database.  5)Execute the ALTER DATABASE FLASHBACKON command.  6)Open the database.  Select the correct order in which these tasks need to be performed. ()
A

2,1,4,3,5,6

B

1,4,3,2,6,5

C

1,4,2,6,3,5

D

3,2,1,4,5,6


参考解析

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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 uses mixed authentication mode. The instance runs on a computer which has Windows Server 2003 installed. You must make sure that the SQL Server 2008 authenticated logins follow the same password complexity rules that are enforced by Windows Server 2003. Besides this, you must make sure that the password complexity rules continue to be enforced.  So what action should you perform to achieve this goal?() A、You should create an SQL Server Agent job. If a rule violation is detected, the job runs periodically to raise an alert B、You should modify all logins by using the ALTER LOGIN ... HASHED statement. C、You should modify all logins by using the ALTER LOGIN ... CHECK_POLICY = ON statement to. D、You should modify all logins by using the ALTER LOGIN ... CHECK_EXPIRATION = ON statement. E、You should create a policy by using Policy-Based Management. The policy prevents any violation of these rules

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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?()AYou must have started the database instance in restricted mode.BYou must have started the database instance inNORMALmode.CYou must have started the database instance with server parameter file.DYou must have started the database instance but must not have mounted.EYou must have started the database instance but must not have opened.

单选题You create an application. The application processes hundreds of XML documents per minute. The XML documents are validated against inline schemas. You need to load XML documents from the file system and read them as quickly as possible. XML comments must be ignored while reading the XML documents.What should you do? ()ACreate an instance of the XmlReader class by using the XmlReader Create method with an instance of the XmlReaderSettings class.BCreate an instance of the XmlReader class with an instance of the XmlTextReader class.CCreate an instance of the XmlDocument class and specify a location for the application schema.DCreate an instance of the XmlReader class with an instance of the XmlNodeReader class.

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?()AStart the instance and open the database, instance recovery automatically recoverscontrol filesBCreate a file based on the contents of the trace file and save it to the control file locations and start the databaseCRe-create the database (The recovery of the control file is not possible because you have lost all the control files.)DStart the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.EStart the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

单选题You work as a database administrator for Certkiller .com. 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?()AShut down the instance, copy the control file to the third location and open the database.BAbort the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.CCopy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile, restart the instance and open the database.DShut down the instance, copy the control file to the third location, modify the CONTROL_FILES parameter in theinit.orafile and open the database.EShut 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.

单选题You are making a telephone call ship-to-shore using the VHF-FM service.You can tell that the working channel is busy if you hear().ASpeechBSignaling tonesCA busy signalDAll of the above