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YouaredevelopingaclientapplicationthatconsumesaWindowsCommunicationFoundation(WCF)service.Youusethesvcutil.exeutilitytocreateaproxyfortheservice.Youusethesvcutil.exeswitchesthatgenerateasynchronouscalls.GetFlightisaserviceoperationthattakesnoparametersandreturnsastring.TheGetFlightCallbackmethodmustbecalledwhentheserviceoperationreturns.Youcreateaninstanceoftheclientproxywiththefollowingcode:varclient=newTranvelServiceClient();YouneedtoensurethatacallbackisreceivedwhentheGetFlightoperationiscalledasynchronously. Whichcodesegmentshouldyouuse?（）

A. client.BeginGetFlight(GetFlightCallback,null);client.GetFlight();
B. client.GetFlight();client.BeginGetFlight(GetFlightCallback,null);
C. client.GetFlightCompleted+=newEventHandler

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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. There is a database named DB1 in the instance. On DB1, quite few logged operations are performed. Now according to the requirement of the company CIO, you must validate that the database can be restored to a specific point in time. So what action should you perform to achieve this goal? （）

A. You should verify that the simple recovery model is used by the database.
B. You should verify that the full recovery model is used by the database.
C. You should verify that the checksum page verify option is used by the database.
D. You should verify that the bulk-logged recovery model is used by the database.

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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. There is a SQL Server 7.0 database. You upgrade the database to the SQL Server instance. According to the company requirement, you must make sure that suspect pages can be detected in the database. So what action should you perform to achieve this goal?（）

A. For the database, you should turn on the TRUSTWORTHY database option
B. For the database, the PAGE_VERIFY database option should be set to CHECKSUM
C. For the database, the database compatibility level option should be set to 10
D. For the model database, the PAGE_VERIFY database option should be set toTORN_PAGE_DETECTIO

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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. You configure the SQL Server instance to use the -T1222 and -T1204 trace flags during startup. You must make sure that your failure recovery plan performs backup of the use of the trace flags. So what action should you perform to achieve this goal? （）

A. You should backup the master database
B. You should backup the default.trc file
C. You should backup the SQL Server registry hive.
D. You should backup the resource database

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Your company， A. Datum Corporation， has a single Active Directory domain named intranet.adatum.com. The domain has two domain controllers that run Windows Server 2008 R2 operating system. The domain controllers also run DNS servers. The intranet.adatum.com DNS zone is configured as an Active Directoryintegrated zone with the Dynamic updates setting configured to Secure only. A new corporate security policy requires that the intranet.adatum.com DNS zone must be updated only by domain controllers or member servers. You need to configure the intranet.adatum.com zone to meet the new security policy requirement. Which two actions should you perform（）

A. Remove the Authenticated Users account from the Security tab of the intranet.adatum.com DNS zone properties.
B. Assign the SELF Account Deny on Write permission on the Security tab of the intranet.adatum.com DNS zone properties.
C. Assign the server computer accounts the Allow on Write All Properties permission on the Security tab of the intranet.adatum.com DNS zone properties.
D. Assign the server computer accounts the Allow on Create All Child Objects permission on the Security tab of the intranet.adatum.com DNS zone properties.

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A. client.BeginGetFlight(GetFlightCallback,null);client.GetFlight(); B. client.GetFlight();client.BeginGetFlight(GetFlightCallback,null); C. client.GetFlightCompleted+=newEventHandler

A. client.BeginGetFlight(GetFlightCallback,null);client.GetFlight();
B. client.GetFlight();client.BeginGetFlight(GetFlightCallback,null);
C. client.GetFlightCompleted+=newEventHandler