51CTO下载-CCNA作业3

《51CTO下载-CCNA作业3》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、1.Whatisthedecimalandhexadecimalequivalentofthebinarynumber10101010?A.Decimal100,hexadecimal3ef2B.Decimal150,hexadecimalABC.Decimal170,hexadecimalAAD.Decimal180,hexadecimalFF2.Whichofthefollowingstatementsaretrue?(Choosefiveoptions.)A.IPisconnectionlessandprovidesrouting.B.AR

2、PisusedtofindanIPaddressofahost.C.UDPisconnectionless.D.TCPisconnectionoriented.E.TCPuseswindowingasaflowcontrolmethod.F.ICMPisusedtomanagedatatorouters.G.ARPisusedtofindahardwareaddressfromaknownIPaddress.3.WhatistheaddressrangeofaClassCnetworkaddress?A.0–127B.1–126C.128–191

3、D.192–2234.Whatprotocolisusedtofindthehardwareaddressofalocaldevice?A.RARPB.ARPC.IPD.ICMPE.BootP5.Whatarethetwomostcommonelementsofarequest/replypairwithICMPmessageswhenusingthePingprogram?A.EchoreplyB.EchorequestC.DestinationunreachableD.Sourcequench6.WhichclassofIPaddresspr

4、ovidesamaximumofonly254hostaddressespernetworkID?A.ClassAB.ClassBC.ClassCD.ClassDE.ClassE7.WhichtwoprotocoltoolsuseICMP?A.TelnetB.PingC.ARPD.Traceroute8.Whichofthefollowingisatruestatement?A.MACaddressbroadcastsareallzeros.B.MACaddressesaredefinedatthePhysicallayer.C.MACaddre

5、ssesareusedbybridgesandswitchestomakeforwarding/filteringdecisions.D.IPaddressesallowaflataddressscheme,whereasMACaddressesarehierarchical.9.WhatistheaddressrangeofaClassBnetworkaddress?A.0–127B.1–126C.128–191D.192–22310.Whatistheresultofusingahierarchicaladdressingscheme?A.I

6、ncreasednumberofaddressesB.DecreasedamountofroutersneededC.IncreasedmemoryusageonroutersD.Noroutingtablesneededonrouters11.Whichofthefollowingstatementsaretrue?(Choosetwo.)A.TCPisconnection-orientedbutdoesn’tuseflowcontrol.B.IPisnotnecessaryonallhoststhatuseTCP.C.ICMPmustbeim

7、plementedbyallTCP/IPhosts.D.ARPisusedtofindahardwareaddressfromaknownIPaddress.12.WhichofthefollowingaretheInternetProtocol(IP)protocolsusedattheApplicationlayeroftheOSImodel?(Choosethree.)A.IPB.TCPC.TelnetD.FTPE.TFTP13.Youhavethefollowingbinarynumber:10110011.Whichtwoofthefo

8、llowingareequivalenttothis?A.128B.179C.184D.0xACE.0x3CF.0xB314.Ifyou