单项选择题

Anapplicationoruserexperiencespoorperformance，yetexaminationofthenfsstat-coutputindicatesnoorveryfewtimeoutsandretransmits.Thismeansthattheclientisreceivingresponsesfromtheserverasfastasitisaskingforthem.Whatisthefirstthingtobechecked？（）
A.ThereisanappropriatenumberofNFSdaemonsrunningontheservermachine
B.Thereisanappropriatenumberofbioddaemonsrunningontheclientmachine
C.TheserverisnotCPUbound
D.Thereisanappropriatenumberofbioddaemonsrunningontheservermachine

A.Thismeansthattheclientisreceivingresponsesfromtheserverasfastasitisaskingforthem.Whatisthefirstthingtobechecked？（）
A.ThereisanappropriatenumberofNFSdaemonsrunningontheservermachine
B.Thereisanappropriatenumberofbioddaemonsrunningontheclientmachine
C.TheserverisnotCPUbound
D.Thereisanappropriatenumberofbioddaemonsrunningontheservermachine

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A.Thedial-upserveronyournetworkisconfiguredtosupportcertificateauthentication.AusernamedTomwantstousesmartcardauthenticationonhisWindows2000Professionalportablecomputer.YouthatTom’scomputerhasaPCCardsmartcardreaderandtheappropriatedriversinstalled.YougiveTomasmartcardtouse.WhatelseshouldyoudotoenablesmartcardauthenticationonTom’scomputer?（）
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