TestInside 640802 v13.docx
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TestInside640802v13
Copyright
TestInside640-802
Cisco640-802
CiscoCertifiedNetworkAssociate(CCNA)
Q&A192v13&v3.21
武汉艾迪飞IT培训中心整理左边的云制作
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TestInside640-802
1.Whataretworeasonsthatanetworkadministratorwoulduseaccesslists?
(Choosetwo.)
A.tocontrolvtyaccessintoarouter
B.tocontrolbroadcasttrafficthrougharouter
C.tofiltertrafficasitpassesthrougharouter
D.tofiltertrafficthatoriginatesfromtherouter
E.toreplacepasswordsasalineofdefenseagainstsecurityincursions
Answer:
AC
2.AdefaultFrameRelayWANisclassifiedaswhattypeofphysicalnetwork?
A.point-to-point
B.broadcastmulti-access
C.nonbroadcastmulti-access
D.nonbroadcastmultipoint
E.broadcastpoint-to-multipoint
Answer:
C
3.Refertotheexhibit.Howmanybroadcastdomainsexistintheexhibitedtopology?
A.one
B.two
C.three
D.four
E.five
F.six
Answer:
C
TestInside640-802
4.Asingle802.11gaccesspointhasbeenconfiguredandinstalledinthecenterofasquareoffice.Afewwireless
usersareexperiencingslowperformanceanddropswhilemostusersareoperatingatpeakefficiency.Whatare
threelikelycausesofthisproblem?
(Choosethree.)
A.mismatchedTKIPencryption
B.nullSSID
C.cordlessphones
D.mismatchedSSID
E.metalfilecabinets
F.antennatypeordirection
Answer:
CEF
5.Refertotheexhibit.WhattwofactscanbedeterminedfromtheWLANdiagram?
(Choosetwo.)
A.Theareaofoverlapofthetwocellsrepresentsabasicserviceset(BSS).
B.Thenetworkdiagramrepresentsanextendedserviceset(ESS).
C.Accesspointsineachcellmustbeconfiguredtousechannel1.
D.Theareaofoverlapmustbelessthan10%oftheareatoensureconnectivity.
E.ThetwoAPsshouldbeconfiguredtooperateondifferentchannels.
Answer:
BE
TestInside640-802
6.Thecommandframe-relaymapip10.121.16.8102broadcastwasenteredontherouter.Whichofthefollowing
statementsistrueconcerningthiscommand?
A.Thiscommandshouldbeexecutedfromtheglobalconfigurationmode.
B.TheIPaddress10.121.16.8isthelocalrouterportusedtoforwarddata.
C.102istheremoteDLCIthatwillreceivetheinformation.
D.ThiscommandisrequiredforallFrameRelayconfigurations.
E.Thebroadcastoptionallowspackets,suchasRIPupdates,tobeforwardedacrossthePVC.
Answer:
E
7.WhichtypeofattackischaracterizedbyafloodofpacketsthatarerequestingaTCPconnectiontoaserver?
A.denialofservice
B.bruteforce
C.reconnaissance
D.Trojanhorse
Answer:
A
8.WhichofthefollowingareassociatedwiththeapplicationlayeroftheOSImodel?
(Choosetwo.)
A.ping
B.Telnet
C.FTP
D.TCP
E.IP
Answer:
BC
9.Forsecurityreasons,thenetworkadministratorneedstopreventpingsintothecorporatenetworksfromhosts
outsidetheinternetwork.Whichprotocolshouldbeblockedwithaccesscontrollists?
A.IP
B.ICMP
C.TCP
D.UDP
Answer:
B
TestInside640-802
10.Refertotheexhibit.ThenetworkadministratorhascreatedanewVLANonSwitch1andaddedhostCand
hostD.TheadministratorhasproperlyconfiguredswitchinterfacesFastEthernet0/13throughFastEthernet0/24to
bemembersofthenewVLAN.However,afterthenetworkadministratorcompletedtheconfiguration,hostA
couldcommunicatewithhostB,buthostAcouldnotcommunicatewithhostCorhostD.Whichcommandsare
requiredtoresolvethisproblem?
A.Router(config)#interfacefastethernet0/1.3
Router(config-if)#encapsulationdot1q3
Router(config-if)#ipaddress192.168.3.1255.255.255.0
B.Router(config)#routerrip
Router(config-router)#network192.168.1.0
Router(config-router)#network192.168.2.0
Router(config-router)#network192.168.3.0
C.Switch1#vlandatabase
Switch1(vlan)#vtpv2-mode
Switch1(vlan)#vtpdomaincisco
Switch1(vlan)#vtpserver
D.Switch1(config)#interfacefastethernet0/1
Switch1(config-if)#switchportmodetrunk
Switch1(config-if)#switchporttrunkencapsulationisl
Answer:
A
TestInside640-802
11.Whataretworecommendedwaysofprotectingnetworkdeviceconfigurationfilesfromoutsidenetwork
securitythreats?
(Choosetwo.)
A.AllowunrestrictedaccesstotheconsoleorVTYports.
B.Useafirewalltorestrictaccessfromtheoutsidetothenetworkdevices.
C.AlwaysuseTelnettoaccessthedevicecommandlinebecauseitsdataisautomaticallyencrypted.
D.UseSSHoranotherencryptedandauthenticatedtransporttoaccessdeviceconfigurations.
E.Preventthelossofpasswordsbydisablingpasswordencryption.
Answer:
BD
12.Refer