A．错误

B．正确

WhenyouuseMicrosoftWindowsMediaPlayertobeginplaybackofamusicfile，youreceivethefollowingerrormessage："Youdonothavetherightstoplaythisfile."YouneedtoconfigureWindowsMediaPlayertoensureplaybackofprotecteddigitalmedia.Whatshouldyoudo？（）

A.DisabletheSetclockondevicesautomaticallyoption.

B.EnabletheAutomaticallycheckifprotectedfilesneedtoberefreshedoption.

C.EnabletheUpdatemusicfilesbyretrievingmediainfofromtheInternetoption.

D.EnabletheDownloadusagerightsautomaticallywhenIplayorsyncafileoption.

A.CPU

B.鼠标

C.键盘

Youaredecommissioningoneofthedomaincontrollersinachilddomain.Youneedtotransferalldomainoperationsmasterroleswithinthechilddomaintoanewlyinstalleddomaincontrollerinthesamechilddomain.Whichthreedomainoperationsmasterrolesshouldyoutransfer（）

A.RIDmaster

B.PDCemulator

C.Schemamaster

D.Infrastructuremaster

E.Domainnamingmaster

A、统筹兼顾

B、保证重点

C、择优供应

D、以上都是

A、时间

B、空间

C、频率

D、波形

A.Query Analyzer

B.Enterprice Manager

C.Profiler

D.Service Manager

A.立即指配请求

B.TCH指配请求

C.小区内切换请求

D.入切换请求