题目内容

Whichtwostatementsaboutsubnetmasksaretrue?（）

A. Ifabitisturnedon(1),thecorrespondingbitintheIPaddressisusedforthehostportion.
B. Ifabitisturnedoff(0),thecorrespondingbitintheIPaddressisusedforthehostportion.
C. Ifabitisturnedon(1),thecorrespondingbitintheIPaddressisusedforthenetworkprefix.
D. Ifabitisturnedoff(0),thecorrespondingbitintheIPaddressisusedforthenetworkprefix.

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YouwouldliketoconfigureanEthernetinterfacewiththefollowingcharacteristics:Fast Whichsetofconfigurationcommandsaccuratelycompletesthistask?（）

A
B
C
D

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Whichstatementdescribestransittraffic?（）

A. TrafficaddressedtothechassisthatrequiressomeformofspecialhandlingbytheREbeforeitcanbeforwardedoutanegressport.
B. Trafficthatentersaningressport,iscomparedagainsttheforwardingtable,andisforwardedoutanegressport.
C. AnytrafficthatrequiresthegenerationofanICMPmessage.
D. Trafficthatrequiressomeformofspecialattentionanddoesnotpassthroughthedevice.

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方差分析中，组间方差包括（）。

A. 随机误差
B. 系统误差
C. 总体标准差
D. 样本标准差
E. 估计标准误差

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Yourcompanyhasamixofemployeesandcontractors.Contractorusernamesalwaysbeginwith"con-";employeeusernamesneverbeginwith"con-".Youneedtogiveemployeesaccesstoallresourcesandgivecontractorsaccesstoalimitedsetofresources.Employeeandcontractorroleshavebeencreatedwiththeappropriateaccessprivileges,andtherealmissettomergesettingsforallassignedroles. Whichrolemappingrulesetwouldresultinthecorrectaccessprivilegesbeingassigned?（）

A. username="*"->Employee-roleStopusername="con-*"->Contractor-role
B. username="*"->Employee-roleusername="con-*"->Contractor-roleStop
C. username="con-*"->Contractor-roleStopusername="*"->Employee-role
D. username="con-*"->Contractor-roleusername="*"->Employee-roleStop

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