exer1Word文档下载推荐.docx
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exer1Word文档下载推荐.docx
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255.255.255.248;
DefaultGateway:
192.16.1.2
192.168.100.20;
255.255.255.240;
192.168.100.17
192.168.100.21;
192.168.100.18
192.168.100.22;
10.1.1.5
192.168.100.30;
192.168.1.1
192.168.100.31;
3.
Refertotheexhibit.WhencomputerAsendsaframetocomputerD,whatcomputersreceivetheframe?
onlycomputerD
onlycomputerAandcomputerD
onlycomputerB,computerC,andcomputerD
allcomputers
4.UDPisthetransportlayerprotocolforwhichapplication?
SMTP
Telnet
TFTP
FTP-datacontrol
webbrowser
5.WhatistheeffectofusingtheRouter#copyrunning-configstartup-configcommandonarouter?
ThecontentsofROMwillchange.
ThecontentsofRAMwillchange.
ThecontentsofNVRAMwillchange.
Thecontentsofflashwillchange.
6.
Refertotheexhibit.Thediagramrepresentstheprocessofsendinge-mailbetweenclients.Whichlistcorrectlyidentifiesthecomponentorprotocolusedateachnumberedstageofthediagram?
1.MUA2.MDA3.MTA4.SMTP5.MTA6.POP7.MDA8.MUA
1.MUA2.POP3.MDA4.SMTP5.MTA6.MDA7.SMTP8.MUA
1.MUA2.POP3.SMTP4.MDA5.MTA6.SMTP7.POP8.MUA
1.MUA2.SMTP3.MTA4.SMTP5.MTA6.MDA7.POP8.MUA
7.
Refertotheexhibit.Thenetworkadministratorforasmalladvertisingcompanyhaschosentousethe192.168.5.96/27networkforinternalLANaddressing.Asshownintheexhibit,astaticIPaddressisassignedtothecompanywebserver.However,thewebservercannotaccesstheInternet.TheadministratorverifiesthatlocalworkstationswithIPaddressesthatareassignedbyaDHCPservercanaccesstheInternet,andthewebserverisabletopinglocalworkstations.Whichcomponentisincorrectlyconfigured?
subnetmask
DNSaddress
hostIPaddress
defaultgatewayaddress
8.
Refertotheexhibit.HostAandBareunabletocommunicatewitheach
other.Whatisthereasonforthis?
HostAisassignedanetworkaddress.
HostBisassignedamulticastaddress.
HostAandhostBbelongtodifferentnetworks.
Thegatewayaddressesarenetworkaddresses.
9.
Refertotheexhibit.Whileconfiguringanetwork,atechnicianwiredeachendofaCategory5ecableasshown.Whichtwostatementsaretrueaboutthissetup?
(Choosetwo.)
ThecableissuitableforconnectingaswitchtoarouterEthernetport.
Thecableissuitableforconnectingdissimilartypesofdevices.
Thecableisunusableandmustberewired.
Thecableisterminatedinawaythatthetransmitpiniswiredtothereceivepin.
Thecablesimulatesapoint-to-pointWANlink.
10.Tworoutersareconnectedviatheirserialportsinalabenvironment.TheroutersareconfiguredwithvalidIPaddresses,buttheycannotpingeachother.Theshowinterfaceserial0/0commandshowsthattheserial0/0interfaceisupbutthelineprotocolisdown.Whatcouldbethecauseofthisproblem?
Thenoshutdowncommandhasnotbeenappliedtotheinterfaces.
TheclockratecommandhasnotbeenenteredontheDCEinterface.
Theinterfacetimersarenotcleared.
TheFastEthernetinterfaceisemulatingaserialinterfacebyassigningitatimingsignal.
11.Whichdeviceshouldbeusedforenablingahosttocommunicatewithanotherhostonadifferentnetwork?
switch
hub
router
host
12.
Refertotheexhibit.CableAispluggedintotheconsoleportonswitchS1.WhatisrequiredonthePCforanetworktechniciantoentertheinitialconfigurationonS1?
aterminalemulationprogram
awebbrowser
aTelnetclient
anFTPclient
13.WhichthreeIPv4addressesrepresentsubnetbroadcastaddresses?
(Choosethree.)
192.168.4.63/26
192.168.4.129/26
192.168.4.191/26
192.168.4.51/27
192.168.4.95/27
192.168.4.221/27
14.Auserentersintheaddresslineofabrowser.Whichstatementistrueaboutthistransaction?
The"
http"
portionindicatestheprotocolthatisbeingused.
web1.htm"
portionisthespecificservicename.
TheretrievedwebpagewillbedisplayedinURLcode.
"
isthenameofthewebpagefilethatiscalled.
15.
Refertotheexhibit.Whichlayerednetworkmodelisshowninthediagram?
Cisco
IETF
OSI
TCP/IP
16.Aroutingissuehasoccurredinyourinternetwork.Whichofthefollowingtypeofdevicesshouldbeexaminedtoisolatethiserror?
accesspoint
17.
Whichstatementdescribesthecorrectuseofaddressestodeliverane-mailmessagefromHostBtothee-mailservicethatisrunningonServerA?
HostBusestheMACaddressofServerAasthedestination.
RouterBusesaLayer3networkaddresstoroutethepacket.
RouterAusestheLayer4addresstoforwardthepackettoRouterB.
ViatheuseofaLayer3address,ServerAassignsthemessagetothee-mailservice.
18.Whichoptionshowshowarouterwillroutepacketstoaremotenetwork?
19.Auserseesthecommandprompt:
Router(config-if)#.Whattaskcanbeperformedatthismode?
Reloadthedevice.
Performbasictests.
Configureindividualinterfaces.
Configureindividualterminallines.
20.Whichexhibitshowstheinterfacethatisconfiguredbythecommand,router(config)#interfaceserial0/0/1?
D
21.WhichphysicalconnectortypeisusedforaserialV.35connectiontotheCSU/DSU?
22.
Refertotheexhibit.Theping127.0.0.1commandisissuedonthelocalhost.Whatdothepingresultsindicate?
Thelocalhostcansendpacketsonthelocalnetwork.
TheTCP/IPstackonthelocalhostoperatesproperly.
Thelocalhosthasfullconnectivitytothedefaultgateway.
Thelocalhosthasfullconnectivitytotheremotenetwork.
23.Whichtopologydividesthecollisiondomainandprovidesfullmediabandwidthtothehostsinthenetwork?
C
C24.Anetworkadministratorisconfiguringseveralswitchesforanetwork.Theswitcheshavesimilarconfigurationsandonlyminordifferences.Theadministratorwantstosaveallcommandsthatareissuedonthefirstswitchtoatextfileforediting.WhichtransferoptionshouldbeselectedinHyperTerminal?
A25.Anetworkadministratorsubnetsthenetwork192.168.1.0/24intofoursubnets.WhichoptioncorrectlyaddressesRouter1andhostAintothesecondsubnetcreated?
26.Anetworktechnicianistaskedwithsettingupanetworkforsixusers,buttheusersshouldbeabletousetheiraccountstologonfromanyofthesixcomputers.Whattypeofnetworkshouldbeused?
workgroup
P2Papplications
peer-to-peernetwork
client-servernetwork
D27.Whichoptionrepresentsapoint-to-pointlogicaltopologydiagram?
C28.Howmanyhostaddressesmaybeassignedwhenusingthe128.107.0.0networkaddresswithasubnetmaskof255.255.248.0?
30
256
2046
2048
4094
4096
A29.WhichconfigurationmodeisusedtosetapasswordtoauthenticateusersthatareaccessingandconfiguringthenetworkdeviceusingaTelnetconnection?
VTYlinemode
interfacemode
consolelinemode
globalconfigurationmode
30.Whichapplicationlayerprotocolallowsadministratorstologintoaserverfromremotelocationsandcontrolaserverasthoughloggedinlocally?
DNS
FTP
DHCP
31.AnetworktechnicianhasmadeaUTPcablethatisterminatedasT568AononeendandT568Bontheoppositeend.Whattypeofcablehasbeenconstructed?
patch
crossover
straight-through
32.
Refertotheexhibit.WhichtwolayersoftheOSImodeldescribethesamefunctionsasthetransportandinternetlayersoftheTCP/IPmodel?
applicationlayer
presentationlayer
sessionlayer
transportlayer
networklayer
datalinklayer
physicallayer
33.Inanetworkdesignproject,anetworkdesignerneedstoselectadevicetoprovid
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