单项选择题

ADNSserverforalargenetworkisexperiencingperformanceproblems.Whichofthefollowingoptionsisthebestsolutiontofixtheproblem？（）

A.EnableNIS
B.Purchasealargerserver
C.Use/etc/hostsonallofthesystems
D.Createsecondarynameserversthroughoutthenetwork
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单项选择题
在________视图方式下，可以复制删除幻灯片，调整幻灯片的顺序，但不能对幻灯片的内容进行编辑修改。
A.幻灯片浏览
B.大纲
C.幻灯片放映
D.幻灯片
单项选择题
RoutersAandBhaveanOC12candaGElinkbetweenthemandarerunningOSPFoverbothoftheselinks.Whichitemiscorrect，assumingthedefaultJUNOSsoftwareOSPFmetriccalculation？（）
A.TherearetwoequalcostpathsbetweenAandB
B.TheGElinkisthepreferredpathbetweenAandB
C.TheOC12clinkisthepreferredpathbetweenAandB
D.Manualmetricassignmentmustbeconfiguredtodeterminetheoutcome.
单项选择题
WhichchoicedescribestheJUNOSsoftwaredefaultpolicyactionforBGProutes？（）
A.IBGPpeers
B.EBGPpeers
C.ActiveBGPpeers
D.EstablishedBGPpeers
单项选择题
Whichactionoccurswhenthepolicymain-policyevaluatestheBGProute10.0.55.2 32？（）[editpolicy-options]policy-statementtest{from{route-filter10.0.0.016 orlongeraccept；route-filter10.0.67.0 24orlangerreject；route-filter10.0.0.0 8orlanger；}then{metric10；communityaddno-advertise；accept；}}policy-statementmain-policy{termonly-want-certain-routes{from{policytest；}then{communityaddharry-402；accept；}}}communitynoadvertisemembersno-advertise；communityharry-402members666：402；[editprotocols]bgp{exportmain-policy；}
A.0.55.2/32？（）
B.0.0.016/orlongeraccept；
C.0.67.0/24orlangerreject；
D.0.0.0/8orlanger；
单项选择题
Basedontheconfigurationshownintheexhibit，whatwillhappentothetrafficmatchingthesecuritypolicy？（）[editschedulers]user@hostshowschedulernow{mondayall-day；tuesdayexclude；wednesday{start-time07：00：00stop-time18：00：00；}thursday{start-time07：00：00stop-time18：00：00；}}[editsecuritypoliciesfrom-zonePrivateto-zoneExternal]user@hostshowpolicyallowTransit{match{source-addressPrivateHosts；destination-addressExtServers；applicationExtApps；}then{permit{tunnel{ipsec-vpnmyTunnel；}}}scheduler-namenow；}A.ThetrafficispermittedthroughthemyTunnelIPsectunnelonlyonTuesdays.B.ThetrafficispermittedthroughthemyTunnelIPsectunneldaily，withtheexceptionofMondays.C.ThetrafficispermittedthroughthemyTunnelIPsectunnelalldayonMondaysandWednesdays between7：00amand6：00pm，andThursdaysbetween7：00amand6：00pm.D.ThetrafficispermittedthroughthemyTunnelIPsectunnelalldayonMondaysandWednesdays between6：01pmand6：59am，andThursdaysbetween6：01pmand6：59am
A.ThetrafficispermittedthroughthemyTunnelIPsectunnelonlyonTuesdays.
B.ThetrafficispermittedthroughthemyTunnelIPsectunneldaily，withtheexceptionofMondays.
C.ThetrafficispermittedthroughthemyTunnelIPsectunnelalldayonMondaysandWednesdays
D.
E.ThetrafficispermittedthroughthemyTunnelIPsectunnelalldayonMondaysandWednesdays
单项选择题
AdefectiveCD－ROMdriveisreplacedwithanewCD－ROMdrive.ThenewCD－ROMdriveisabletoreadanyCDthatitaccesses，butmusicCDsdonotplaymusic.WhatistheMOSTlikelycauseofthisproblem？（）
A.Theaudiocableisnotconnectedtothedrive.
B.Theribboncableisnotconnected.
C.Thepowercableisnotconnected.
D.TheCD-ROMdriversarenotinstalled.
单项选择题
AcustomerreceivesaCD-RWdiskfromacomputervendor.Thecustomertriestoreadthediskinacomputerwitha4XCD-ROMdriveandisunabletoreadanyinformation.ThecustomertriestheCD-RWdiskona32XCD-ROMdriveanditreadscorrectly.Whatisthecauseofthisproblem？（）A.The4XCD-ROMdrivehasdirtyopticsorlaserandrequirescleaning.B.The4XCD-ROMdriveneedstobejumperedtosupportCD-RWdisks.C.The4XCD-ROMdrivedoesnotsupportthemulti-readspecification.D.The4XCD-ROMisfine，buttheCD-RWdiskhasaflawinitsformat.
A.Thecustomertriestoreadthediskinacomputerwitha4XCD-ROMdriveandisunabletoreadanyinformation.ThecustomertriestheCD-RWdiskona32XCD-ROMdriveanditreadscorrectly.Whatisthecauseofthisproblem？（）
A.The4XCD-ROMdrivehasdirtyopticsorlaserandrequirescleaning.
B.The4XCD-ROMdriveneedstobejumperedtosupportCD-RWdisks.
C.The4XCD-ROMdrivedoesnotsupportthemulti-readspecification.
D.The4XCD-ROMisfine，buttheCD-RWdiskhasaflawinitsformat.
单项选择题
Inwhichsituation（s）willWindowsXPadvisethetechnicianinstallingadevicethatthedriverissignedornot？（）
A.inallcases
B.forsomenonPnP（nonplugandplay）devicedriversandallPnP（plugandplay）devicedrivers
C.forallnonPnP（nonplugandplay）devicedriversandmostPnP（plugandplay）devicedrivers
D.notforanynonPnP（nonplugandplay）devicedrivers,onlyforallPnP（plugandplay）devicedrivers
单项选择题
沃云WLinux操作系统默认安装方式( )
A.最大化
B.最小化
C.图形化
D.标准化
单项选择题
关于NTP和linux系统时间的说法错误的是( )
A.虚拟机开机时需要设置NTP
B.linux系统NTPserver在/etc/ntp.conf中设置
C.可以使用tzselect命令修改linux系统时区
D.同步时钟报错时要从网络的NTP时钟源同步时间
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