数据通信网络组建与维护思科题库-豆柴文库

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一、计算机网络基础知识
1．WhichofthefollowingdevicescananadministratorusetosegmenttheirLan?()
(chooseallthatapply)
A.hubsB.repeatersC.switchesD.bridgesE.routersF.mediaconvertersG.allofthe
above
2.whichtypeofcableshouldbeusedtomakeaconnectionbetweentheFa0/0port
onarouterandtheFa0/0portswitch?()
A.rollovercableB.consolecableC.crossovercableD.straight-throughcableE.serial
cable
3.giventhechoicesbelow,whichaddressrepresentsaunicastaddress?()
A.224.1.5.2B.FFFF.FFFF.FFFFC.192.168.24.59/30D.255.255.255.255
E.172.31.128.255/18
4.ifalostonanetworkhastheaddress172.16.45.14/30,whatistheaddressofthe
subnetworktowhichthishostbelong?(n)
A.172.16.45.0B.172.16.45.4C.172.16.45.8D.172.16.45.12E.172.16.45.18
5.whichoneofthebinarynumberrangesshownbelowcorrespondstothevalueofthe
firstocterinclassBaddressrange?()
A.10000000---11101111B.11000000----11101111
C.10000000---10111111D.10000000-----11111111
E.11000000---10111111
6.howmanysubnetworksandhostsareavaibablepersubnetifyouapplya/28masktothe
210.10.2.0classCnetwork?
A.30networkdand6hostsB.6networksand30hosts
C.8networksand32hostsD.32networksand18hosts
E.14networksand14hostsF.noneoftheabove
7.whatisthesubnetforthehostIPaddress172.16.210.0/22?()
A.172.16.42.0B.172.16.107.0C.172.16.208.0D.172.16.252.0E.172.16.254.0F.
noneoftheabove
8.3addressareshowninbinaryformbelow:
A.01100100.00001010.11101011.00100111
B.10101100.00010010.10011110.00001111
C.11000000.10100111.10110010.01000101
Belowarecorrect?(selectthree)()
A.addressCisapublicclassCaddress.
B.addressCisaprivateclassCaddress
C.addressBisapublicclassBaddress.
D.addressAIsapublicclassAaddress.
E.addressBisaprivateclassbaddress.
F.addressAisaprivateclassAaddress.
9.YouhaveanetworkthatsupportsVLAMandyouneedtoreduceIPaddresswastein
yourpointtopointWANlinks.whichofthemasksbelowwouldyouuseb?()
A./38B./30C./27D./23E./18F./32

第二：路由器基本知识
1．Whiletroubleshootingalinkproblemononeoftherouters,thefollowingoutputwas
seen:
Router1#showinterfaceserial0
Serial0isup,lineprotocolisdown
HardwareisHDLC4530A
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