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【单选题】

You query the ORDERS table and discover that order number 1101 is missing. One of your reports， generated at 5：00 A.M. on April 23， 2005 using Oracle Reports， includes this order number in the output. You have inserted 100 new orders into the ORDERS table since generating this report. Which flashback technology would you use to recover order number 1101 into the ORDERS table without losing the 100 orders that you added after the report was generated？（）  

A、 Flashback Table

B、 Flashback Query

C、Flashback Version Query

D、 Flashback Transaction Query

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更多“You query the ORDERS table and discover that order number 1101 is missing. One of your reports， generated at 5：00 A.M. on April 23， 2005 using Oracle Reports， includes this order number in the output. You have inserted 100 new orders into the ORDERS table since generating this report. Which flashback technology would you use to recover order number 1101 into the ORDERS table without losing the 100 orders that you added after the report was generated？（）  ”相关的问题
第1题
[单选题] You are a database administrator for your company. The company’s financial forecasting application uses a SQL Server 2005 database that enables business users to run both ad hoc and predefined queries. You suspect that some queries consume an excessive amount of server resources. You need to identify which queries consume the most resources. You want to achieve this goal as quickly as possible. What should you do？（）

A、Use the DBCC INPUTBUFFER command.  B、Use the sys.dm_exec_query_stats dynamic management view （DMV）.  C、Use the sqldiag utility.  D、Use the SHOWPLAN session option.  

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第2题
[单选题] You have a domain controller that runs Windows Server 2008 and is configured as a DNS server You need to record all inbound DNS queries to the server. What should you configure in the DNS Manager console（）

A、Enable debug logging.  B、Enable automatic testing for simple queries.  C、Enable automatic testing for recursrve queries.  D、Configure event logging to log errors and warnings.  

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第3题
[单选题] You need to base a data block on the EMP table, but you do not want to give the users of the application access privileges on the table. Which type of data source would you use to create the data block?（）

A、table   B、transactional trigger   C、stored procedure   D、FROM clause query  

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第4题
[单选题] You have a domain controller that runs Windows Server 2008 and is configured as a DNS server. You need to record all inbound DNS queries to the server. What should you configure in the DNS Manager console（）

A、Enable debug logging.  B、Enable automatic testing for simple queries.  C、Enable automatic testing for recursive queries.  D、Configure event logging to log errors and warnings.  

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第5题
[单选题] You are looking for an executable file foo. Select the command that would search forfoo within directories set in the shell variable， PATH.（）

A、 locate  B、 which  C、 find  D、 query  E、 whereis  

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第6题
[单选题] A user performs an update on a table. Shortly after committing the transaction， they realize that they had an error in their WHERE clause causing the wrong rows to be updated. Which Flashback option would allow you to undo this transaction and restore the table to its previous state？（）

A、 Flashback Drop  B、 Flashback Query  C、 Flashback Versions Query  D、 Flashback Transaction Query  E、 Flashback Table  

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第7题
[单选题] You are creating a Windows Forms application by using the .Net Framework 3.5.You plan to display detailed help instructions for each control in the form.You create a help file.You configure a HelpProvider component on the form. You need to display the help file for the control that is focused when the F1 key is pressed.Which method of the HelpProvider class should you call for each control？（）

A、SetShowHelp  B、SetHelpString  C、SetHelpKeyword  D、SetHelpNavigator  

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第8题
[单选题] Your network consists of a single Active Directory domain named Contoso.com. The domain contains a member server named Server1. Server1 runs Windows Server 2003 Service Pack 2 (SP2). Server1 has Windows Support Tools and Resource Kit Tools installed. You need to view the Kerberos tickets issued to Server1. Which tool should you run?（）

A、Kerbtray   B、Sc /query kdc   C、Netdiag /test:Kerberos   D、Nltest /sc_query:Contoso.com  

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第9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. There are queries that have an estimated execution cost less than 3. You intend to configure the instance, make it use a single thread for these queries. In the options below, which sp_configure configuration option should you set?（）

A、You should set query governor cost limit  B、You should set cost threshold for parallelism  C、You should set priority boost   D、You should set precompute rank  

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