网络学院26.docx
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网络学院26.docx
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网络学院26
1
窗体顶端
WhattwoadvantagesdoesCIDRprovidetoanetwork?
(Choosetwo.)
reducedroutingtablesize
dynamicaddressassignment
automaticrouteredistribution
reducedroutingupdatetraffic
automaticsummarizationatclassfulboundaries
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
Option1andOption4arecorrect.
1pointforeachcorrectoption.
0pointsifmoreoptionsareselectedthanrequired.
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.3.1RouteSummarization
2
窗体顶端
Refertotheexhibit.Thenetworkadministratorwantstocreateasubnetforthepoint-to-pointconnectionbetweenthetworouters.Whichsubnetworkmaskwouldprovideenoughaddressesforthepoint-to-pointlinkwiththeleastnumberofwastedaddresses?
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
255.255.255.252
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption5
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.2.2VLSMandIPAddresses
3
窗体顶端
Refertotheexhibit.AnetworkengineerissummarizingthetwogroupsofroutesonrouterR1shownintheexhibit.Whichsummarizationwillworkforallthesubnets?
192.168.0.0/23
192.168.0.0/22
192.168.0.0/21
192.168.0.0/20
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption3
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.1.3ClasslessIPAddressing
4
窗体顶端
Whichofthefollowingarecontainedintheroutingupdatesofclasslessroutingprotocols?
(Choosetwo.)
32-bitaddress
nexthoprouterinterface
subnetmask
unicasthostaddress
Layer2address
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
Option1andOption3arecorrect.
1pointforeachcorrectoption.
0pointsifmoreoptionsareselectedthanrequired.
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.1.4ClasslessRoutingProtocol
5
窗体顶端
WhichofthefollowingproblemsdoesVLSMhelptoalleviate?
theshortageofIPaddresses
thedifficultyofassigningstaticIPaddressestohostsinlargeenterprises
thecomplexityofimplementingadvancedroutingprotocolssuchasOSPFandEIGRP
theshortageofnetworkadministratorsqualifiedintheuseofRIPv1andIGRP
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption1
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.2.1VLSMinAction
6
窗体顶端
WhatdoesVLSMallowanetworkadministratortodo?
utilizeonesubnetmaskthroughoutanautonomoussystem
utilizemultiplesubnetmasksinthesameIPaddressspace
utilizeIGRPastheroutingprotocolinanentireautonomoussystem
utilizemultipleroutingprotocolswithinanautonomoussystem
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption2
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.2.1VLSMinAction
7
窗体顶端
Refertotheexhibit.WhatsubnetmaskwillbeappliedbyrouterBwhenitreceivesaRIPv1updateforthenetwork172.16.1.0?
none
8
16
24
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption4
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.1.2ClassfulRoutingProtocol
8
窗体顶端
Refertotheexhibit.ThenetworkadministratorwantstominimizethenumberofentriesinRouter1’sroutingtable.Whatshouldtheadministratorimplementonthenetwork?
VLSM
CIDR
privateIPaddresses
classfulrouting
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption2
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.3.1RouteSummarization
9
窗体顶端
Arouterhasasummaryroutetonetwork192.168.32.0/20installedinitsroutingtable.Whatrangeofnetworksaresummarizedbythisroute?
192.168.0.0–192.168.32.0/24
192.168.0.0–192.168.47.0/24
192.168.32.0–192.168.47.0/24
192.168.32.0–192.168.48.0/24
192.168.32.0–192.168.63.0/24
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption3
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.3.2CalculatingRouteSummarization
10
窗体顶端
AnetworkadministratoristaskedwithdividingupaclassCnetworkamongtheQA,Sales,andAdministrationdepartments.TheQAdepartmentismadeupof10people,theSalesismadeupof28people,andtheAdministrationhas6.WhichtwosubnetsmasksadequatelyaddresstheQAandSalesdepartments?
(Choosetwo.)
255.255.255.252forQA
255.255.255.224forSales
255.255.255.240forQA
255.255.255.248forQA
255.255.255.0forSales
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
Option2andOption3arecorrect.
1pointforeachcorrectoption.
0pointsifmoreoptionsareselectedthanrequired.
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.2.2VLSMandIPAddresses
11
窗体顶端
Inthenetworkshowninthegraphic,threebitswereborrowedfromthehostportionofaClassCaddress.Howmanyvalidhostaddresseswillbeunusedonthethreepoint-to-pointlinkscombinedifVLSMisnotused?
3
4
12
36
84
180
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption5
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.1.1ClassfulIPAddressing
12
窗体顶端
AClassCaddresshasbeenassignedforuseinthenetworkshowninthegraphic.UsingVLSM,whichbitmaskshouldbeusedtoprovideforthenumberofhostaddressesrequiredonRouterA,whilewastingthefewestaddresses?
/31
/30
/29
/28
/27
/26
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption5
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.4.1BasicVLSMCalculationandAddressingDesignActivity
13
窗体顶端
AnadditionalsubnetisrequiredforanewEthernetlinkbetweenRouter1andRouter2asshowninthediagram.Whichofthefollowingsubnetaddressescanbeconfiguredinthisnetworktoprovideamaximumof14useableaddressesforthislinkwhilewastingthefewestaddresses?
192.1.1.16/26
192.1.1.96/28
192.1.1.160/28
192.1.1.196/27
192.1.1.224/28
192.1.1.240/28
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption5
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.4.1BasicVLSMCalculationandAddressingDesignActivity
14
窗体顶端
WhichthreeinteriorroutingprotocolssupportVLSM?
(Choosethree.)
OSPF
RIPv1
RIPv2
EIGRP
BGP
STP
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
Option1,Option3,andOption4arecorrect.
1pointforeachcorrectoption.
0pointsifmoreoptionsareselectedthanrequired.
3
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.1.4ClasslessRoutingProtocol
15
窗体顶端
Refertotheexhibit.Thenumberofrequiredhostaddressesforeachsubnetinanetworkislistedintheexhibit.Thisnumberincludesthehostaddressrequirementsforallrouterportsandhostsonthatsubnet.Afteralldeviceandrouterportaddressassignmentsaredetermined,whatwillbethetotalnumberofunusedhostaddressesavailable?
6
14
29
34
40
62
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption3
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.1.3ClasslessIPAddressing
16
窗体顶端
Refertotheexhibit.Inthenetworkthatisshown,therouterinterfacesareassignedthefirstaddressineachsubnet.WhichIPaddresswouldbeusableforahostononeoftheLANsinthisnetwork?
192.168.1.5/30
192.168.2.17/28
192.168.2.63/27
192.168.2.130/25
窗体底端
Observable
Description
MaxValue
1
correctnessofresponse
2pointsforOption4
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
RoutingProtocolsandConcepts
∙6.2.1VLSMinAction
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