思科第一学期期末考试最新考题CCNA1备课讲稿.docx
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思科第一学期期末考试最新考题CCNA1备课讲稿.docx
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思科第一学期期末考试最新考题CCNA1备课讲稿
思科第一学期期末考试最新考题CCNA1
1
Refertotheexhibit.WhichLayer2protocolcouldbeusedinsideneworkAandnetworkC?
IP
TCP
UDP
Ethernet
窗体底端
2
窗体顶端
Refertotheexhibit.Whichsetofdevicescontainsonlyintermediarydevices?
A,B,D,G
A,B,E,F
C,D,G,I
G,H,I,J
窗体底端
3
窗体顶端
Refertotheexhibit.Theheadersaddedateachlayerareshown.Whichlayeraddsthedestinationandsourceprocessnumberstoensurethatdataisdeliveredtothecorrectapplication?
physicallayer
datalinklayer
networklayer
transportlayer
窗体底端
4
窗体顶端
TheLayer4headercontainswhichtypeofinformationtoaidinthedeliveryofdata?
serviceportnumber
hostlogicaladdress
devicephysicaladdress
virtualconnectionidentifier
窗体底端
5
窗体顶端
Whichfiberconnectorsupportsfull-duplexEthernet?
窗体底端
6
窗体顶端
Whichdeviceshouldbeusedforroutingapackettoaremotenetwork?
accessswitch
DHCPserver
hub
router
窗体底端
7
窗体顶端
Refertotheexhibit.HostAsendsaframetohostCwithadestinationMACaddressCC.TheMACaddressforhostCisnotintheMACtableofswitchSW1.HowwillSW1handletheframe?
SwitchSW1willdroptheframe.
SwitchSW1willforwardtheframetohostC.
SwitchSW1willfloodtheframeoutallports.
SwitchSW1willfloodtheframeoutallportsexceptportFa0/1.
窗体底端
8
窗体顶端
Refertotheexhibit.AnetworktechnicianhasmadeseveralchangestoR1sincetheconfigurationhaslastbeensaved.Themodifiedconfigurationdidnotproducethedesiredchanges.ThetechnicianwantstostoreabackupcopyofthesavedconfigurationonaTFTPserverbeforereloading.WhichactionwillcausetheunmodifieddatatobesavedontheTFTPserver?
窗体底端
9
窗体顶端
Whichthreestatementsaretrueaboutnetworklayeraddressing?
(Choosethree.)
Ituniquelyidentifieseachhost.
Itassistsinforwardingpacketsacrossinternetworks.
Itusesalogical32-bitIPv4address.
Itisnotaconfigurableaddress.
Itisaphysicaladdress.
Itidentifiesthehostfromthefirstpartoftheaddress.
窗体底端
10
窗体顶端
Whatistheresultofusingtheclockrate56000commandattheserialinterfaceoftherouter?
TheinterfaceisconfiguredasaDCEdevice.
Theinterfacetimersarecleared.
TheFastEthernetinterfaceismadetoemulateaserialinterfacebyassigningitatimingsignal.
TheIPaddressfortheserialinterfaceisconfigured.
窗体底端
11
窗体顶端
Examinethegraphicwithcurrentconfigurations.HostAintheClericalofficefailedandwasreplaced.Althoughapingto127.0.0.1wassuccessful,thereplacementcomputercannotaccessthecompanynetwork.WithproxyARPdisabledontheFa0/0interfaceoftheNewYorkrouter,whatisthelikelycauseoftheproblem?
networkcardfailure
networkcablesunplugged
IPaddressincorrectlyentered
subnetmaskincorrectlyentered
窗体底端
12
窗体顶端
Asnetworkadministrator,whatisthesubnetmaskthatallows510hostsgiventheIPaddress172.30.0.0?
255.255.0.0
255.255.248.0
255.255.252.0
255.255.254.0
255.255.255.0
255.255.255.128
窗体底端
13
窗体顶端
WhichOSIlayerusesaconnection-orientedprotocoltoensurereliabledeliveryofdata?
applicationlayer
presentationlayer
sessionlayer
transportlayer
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14
窗体顶端
Anetworkhasgrowntoolargefortechnicianstoconfigurenetworkaddressesandhostsfilesfornameresolution.Whichtwoapplicationlayerservicesshouldbeaddedtotheservertoallowtheseneedstobesatisfieddynamically?
(Choosetwo.)
DNS
FTP
DHCP
HTTP
SMTP
窗体底端
15
窗体顶端
Refertotheexhibit.HostAwantstoaccesstheInternet.WhichcombinationofaLayer2addressandaLayer3addresswillenablethisaccessfromhostA?
DestinationMAC:
0030.8596.DE83Defaultgateway:
209.165.202.130
DestinationMAC:
0030.8596.DE82Defaultgateway:
172.16.9.2
DestinationMAC:
0030.8517.44C4Defaultgateway:
172.16.1.1
DestinationMAC:
0030.8517.44C4Defaultgateway:
209.165.202.130
窗体底端
16
窗体顶端
Anetworkadministratorisaskedtodesignanewaddressingschemeforacorporatenetwork.Thereare60usersinthemainoffice,40usersinthebranchoffice,28usersinmanufacturing,12inthesalesoffice,and4usersintheresearchoffice.WhichVLSMaddressingschemethatusesthe192.168.88.0/24networkwillfulfilltherequirementswhilewastingthefewestaddresses?
192.168.88.0/26main
192.168.88.32/26branch
192.168.88.64/26manufacturing
192.168.88.96/27sales
192.168.88.128/28research
192.168.88.0/26main
192.168.88.64/26branch
192.168.88.128/27manufacturing
192.168.88.160/28sales
192.168.88.176/29research
192.168.88.0/2
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