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【单选题】

You work as a database administrator for Supportcenter.cn. You received the following error while working on your database： ORA-01555： snapshot too old ，In which situation would you receive such an error？（）

A、You performed rollback after commit.

B、If a log switch occurs in your database.

C、Thearchiverfails to generate an archived log file.

D、Instance recovery fails to find one of the redo log files.

E、A long-running query is unable to get read-consistent image.

F、If you perform manual undo management operations in auto mode.

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更多“You work as a database administrator for Supportcenter.cn. You received the following error while working on your database： ORA-01555： snapshot too old ，In which situation would you receive such an error？（）”相关的问题
第1题
[单选题] You work as the exchange administrator at Company.com.the Company.com network contains an exchange server 2010 organization.Company.com has its headquarters in stockholm where you are located.you are responsible for an exchange 2010 edge transport server named -ex01.during the course of the week you receive an instruction from the cio to make sure that e-mail messages sent to unknown addresses in the organization is rejected automatically.What should you do？（）

A、You should consider configuring recipient filtering.  B、You should consider configuring sender reputation.  C、You should consider configuring content filtering.  D、You should consider configuring sender filtering.  

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第2题
[单选题] You work as the Exchange administrator at Company.com.The Company.com network contains an Exchange Server 2010 Organization.Company.com has its headquarters in Stockholm where you are located.The Marketing department contains 5，000 employees that are members of a group named TKPRODUCTS.You receive an instruction from management to make sure that an informative message is shown when employees add TKPRODUCTS to the recipient list of e-mail messages.What should you do？（）

A、You should consider having a transport rule created.  B、You should consider having a Send connector created.  C、You should consider having a MailTip configured.  D、You should consider having an expansion server configured.  

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第3题
[多选题] You work as a Web Developer at Certkiller.com. You make use of Microsoft ASP.NET 3.5 in orderto create a Web application. You add the following HTML element to an ASP.NET page：    You want to retrieve the value of the element in the code-behind class.  What should you do？（）

A、A  B、B  C、C  D、D  E、E  

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第4题
[单选题] You are working on a debug build of an application.You need to find the line of code that caused an exception to be thrown. Which property of the Exception class should you use to achieve this goal？（）

A、Data  B、Message  C、Stack Trace  D、Source  

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第5题
[单选题] You have a computer with a USB keyboard that is running Windows 2000 Professional. You install a USB scanner on this system. The system asks for the driver and you install them. After you restart your computer， you notice that the keyboard doesn’t work anymore. What should you do in order to make both， the keyboard and the scanner work？ （）

A、Update the scanner drivers using certified drivers  B、Enable the USB port in the computers BIOS  C、USB keyboards DO NOT exist  D、Enable the USB hub controller  E、Reinstall the USB device driver and disable the USB error detection  

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第6题
[] You install a new CD-ROM on your computer. After installing the appropriate drivers and restarting the computer you notice that it is not working correctly. You check resources and find out that it is not using “Automatic resource settings”. How do you get your CDROM to work? （）

A、A.Check ‘Use Automatic Settings’  B、B.Update the drives  C、C.Use the windows troubleshooter  D、D.Manually set the interrupt，I/O port， and memory address to that of the hardware manufacturers specifications.  

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第7题
[单选题] You work as the enterprise exchange administrator at Xxx .The Xxx network consists of a domain named xxx .What actions must you take to allow a room mailbox to automatically take requests for meetings？（）

A、You must use log transactions.  B、You must use Calendar Repair Assistant （CRA）.  C、You must select the resource booking attendant.  D、You must set up Task Scheduler.  

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第8题
[单选题] You are working as a DBA at NetFx Corporation. You discover that the SCOTT schema is deleted by mistake. You decide to flash the database back to the time when the schema existed. Which view will you query to determine the estimated size of the flashback data that you require for your current target retention？（）

A、 V$FLASHBACK_DATABASE_LOG  B、 V$FLASHBACK_DATABASE_STAT  C、 V$DATABASE  D、 V$UNDOSTAT  

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第9题
[单选题] You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. Today you notice that applications that run on the server have poor performances. You doubt that this has something to do with table scans. You have to capture the appropriate information by using an appropriate Windows System Monitor object. In the options below, which performance object should you use? （

A、You should use SQLServer:Buffer Manager  B、You should use SQLServer:Memory Manager   C、You should use SQLServer:Databases   D、You should use SQLServer:Access Methods  

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第10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. You intend to configure FILESTREAM data, enabling FILESTREAM for file I/O streaming access and allowing remote client computers to have streaming access to FILESTREAM data. You must make sure that FILESTREAM data is enabled. In the options below, which service should you configure? （） 

A、You should configure Distributed File System  B、You should configure SQL Server  C、You should configure SQL Server Full Text  D、You should configure SQL Server VSS Writer  

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