CP期末复习参考3答案.docx
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CP期末复习参考3答案.docx
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CP期末复习参考3答案
答案仅供参考
WhichofthefollowingbestdescribesaStandardACL?
a.
FilterstrafficbasedonSourceIPaddressonly
b.
FilterstrafficbasedonDestinationIPaddressonly
c.
FilterstrafficbasedonSourceIP,protocol,andport
d.
Mustbeplacedasclosetothesourceaspossible
Question1.[1mark]
WhataddressrangehasaccesstotheNATpoolifthefollowingaccesslistcommandisapplied?
access-list10permit172.16.16.00.0.15.255
a.
172.16.0.0–172.16.16.255
b.
172.16.16.0–172.16.16.255
c.
172.16.16.0–172.16.31.0
d.
172.16.16.0–172.16.31.255
Question2.[1mark]
Whichofthefollowingbestdescribesanalternatewaytowritingthecommandbelow?
access-list10permit200.16.16.5
a.
access-list10permit200.16.16.50.0.0.0
b.
access-list10permithost200.16.16.5
c.
access-list10permit200.16.16.50.0.0.255
d.
Bothaandb
e
Noneoftheabove
Question3.[1mark]
WhichofthefollowingbestdescribestheadvantageofanamedACL?
a.
Allowsincreasedoptionsforfilteringtraffic
b.
IndividualstatementsinanamedACLcanbeeditedwithouttheneedtodeleteandrecreatetheentirelist
c.
NewstatementsinanamedACLcanbeaddedanywherewithinthelist
d.
Alloftheabove
Question4.[1mark]
WhichofthefollowingbestdescribesanInsideGlobaladdress?
a.
PublicIPaddressofadestinationhost
b.
PublicIPaddressthatrepresentstheaddressofahostonaninsidenetwork
c.
PrivateIPaddressofadestinationhostonitsinsidenetwork
d.
GlobalprivateIPaddressofalocalhost
Question5.
[1mark]
WhichofthefollowingbestdescribesstaticNAT?
a.
AllowsmultiplehoststoshareasingleIPaddress
b.
IncreasesthesizeoftheNATpool
c.
ProvidesdynamicIPaddressallocationfromapoolofaddresses
d.
Providesafixedtranslationfordedicateddevicessuchasservers
Question6.[1mark]
Whichofthefollowingbestdescribesthefollowingcommand?
ipnatinsidesourcelist1interfaceserial0/0overload
a.
Networkaddresstranslation
b.
Portaddresstranslation
c.
Bothnetworkaddresstranslationandportaddresstranslation
d.
StaticNAT
Question7.[1mark]
WhichofthefollowingbestdescribesDHCP?
a.
DHCPcanallocateipaddresses,gateway,DNSserveraddresses,anddomainnames.
b.
EachIPaddressmustbemanuallyassignedtoaMACaddressbythesystemadministrator
c.
PermanentlyallocatesIPaddressesbasedonMACaddress
d.
DHCPusesRARPtofindIPaddressesmatchingaknownMACaddress
Question8.[1mark]
Whichofthefollowingstatementsbestdescribesthelocalloop?
a.
Thelinefromthedemarktothecustomerequipment
b.
ThelinefromtheCPEtothecustomerequipment
c.
TheTelcolinebetweenexchanges
d.
Telcolinefromthecustomerpremisestothelocalexchange
Question9.[1mark]
WhatisaCSU/DSU?
a.
Digitalmodem
b.
Analoguemodem
c.
Router
d.
Frame-relayinterface
Question10.[1mark]
WhichofthefollowingisasimpleWANprotocolwhichisusedinamodifiedproprietaryformonCiscoroutersandisthedefaultWANprotocol?
a.
FrameRelay
b.
PPP
c.
HDLC
d.
ATM
Question11.
[1mark]
WhichofthefollowingisacircuitswitchedWANprotocol?
a.
HDLC
b.
PPP
c.
ISDN
d.
Frame-relay
Question12.[1mark]
WhichofthefollowingarefeaturesofPPP?
a.
Authentication
b.
Compression
c.
Errordetection
d.
Alloftheabove
Question13.[1mark]
WhichofthefollowingbestdescribesCHAP?
a.
Providesplaintextpasswordauthentication
b.
Usesencryptedpasswordwiththreewayhandshake
c.
Doesnotallowcallbacks
d.
Bothaandc
Question14.[1mark]
WhichofthefollowingbestdescribesFrameRelay
a.
CircuitswitchedWANservice
b.
CellswitchedWANservice
c.
Packet-switched,connection-oriented,WANservice
d.
PointtopointWANprotocol
Question15.[1mark]
FrameRelayusesvirtualcircuits.WhichofthefollowingbestdescribesavirtualcircuitthatremainsinplaceONLYforthedurationofthecall?
a.
PVC
b.
SVC
c.
LMI
d.
DLCI
Question16.[1mark]
WhichofthefollowingbestdescribesthecommittedinformationrateforFrameRelay?
a.
TheminimumbandwidththatyoumustcommittowhenpurchasingaFrameRelayservice
b.
Themaximumbandwidththattheserviceprovidercanguarantee
c.
Thebandwidthpurchasedbytheuserthatisguaranteedbytheserviceprovider
d.
Noneoftheabove
Question17.
[1mark]
Whichofthefollowingbestdescribesaframerelaymap?
a.
MapsanIPaddresstoMACaddress
b.
MapsaDLCItoaMACaddress
c.
MapsaDLCItothelocalIPaddress
d.
MapsaDLCItotheremoteIPaddress
Question18.[1mark]
Whichofthefollowingincorporatesakeepalivemechanism,whichverifiesthataVCisoperational;andprovidesaVCstatusmechanism,multicasting,andflowcontrolforFrameRelay?
a.
LMI
b.
DLCI
c.
FRAD
d.
RARP
Question19.[1mark]
ConsiderthecommandsbelowtoconfigurethemanagementVLANVLAN1.WhatcommandisrequiredtocompletethisconfigurationandmakethemanagementVLANaccessibleacrossthenetwork?
interfacevlan1
ipaddress200.15.5.2255.255.255.0
a.
ipdefault-gateway200.15.5.1
b.
noshutdown
c.
vlandatabase
d.
Alloftheabove
Question20.[1mark]
WhichofthefollowingbestdescribestheSpanningTreeProtocol?
a.
Linkcostsarebasedonthespeedofthelink
b.
Therootnodeiscalledtherootbridge
c.
Redundantlinksthatarenotpartoftheshortestpathtreeareblocked
d.
Alloftheabove
Question21.[1mark]
TheBridgeIDinaBPDUconsistsof?
a.
Thebridgeprioritythatdefaultsto32768plustheswitchMACaddress
b.
ThehighestMACaddressinthebridgingtable
c.
Theaccumulativeportcostbacktotherootswitch
d.
Noneoftheabove
Question22.
[1mark]
WhatistheuseablebandwidthofanISDNBRIchannel?
a.
64kbps
b.
128kbps
c.
256kbps
d.
1048kbps
Question23.[1mark]
WhichofthefollowingisanadvantageofRapidSpanningTreeProtocol?
a.
RootbridgeinRSTPsendsBPDUseverysecondmakingconvergencequicker
b.
Multiplepathsareallowedbacktotherootbridgeforloadsharing
c.
Point-to-pointlinksandedge-typelinkscangototheforwardingstateimmediately
d.
Noneoftheabove
Question24.[1mark]
WhichofthefollowingbestdescribesaVLAN?
a.
AlogicalgroupingofhostsonaLAN
b.
TrafficisrestrictedtoaVLANwithouttheuseofVLANrouting
c.
Asinglebroadcastdomain
d.
Alloftheabove
Question25.[1mark]
WhichofthefollowingbestdescribesaStaticVLAN?
a.
AhostconnectedtoaportassumestheVLANmembershipoftheporttowhichitisattached
b.
ThehostisassignedaVLANbyVTPwhenitfirstsconnectstotheswitch
c.
ThehostisassignedaVLANbyDHCPwhenitfirstsconnectstotheswitch
d.
ThehostisassignedaVLANbyaVMPSserverwhenitfirstsconnectstotheswitch
Question26.[1mark]
Whichofthefollowingcommandswouldconfiguretheswitchinterfacefa0/2tobeonvlan3
a.
interfacefa0/2vlan3
encapsulationdot1q3
b.
interfacefa0/3
vlan2nameadmin
c.
interfacefa0/2
switchportaccessvlan3
d.
interfacefa0/2
encapsulationdot1qvlan3
Question27.[1mark]
WhichofthefollowingbestdescribesVTP?
a.
DistributesVLANinformationandconfiguresswitchinterfaceswiththeappropriateVLANIds
b.
Eliminateslooping
c.
DistributesbridgingtablestoallowmultipleVLANtrafficbetweentrunkportsonconnectedswitches
d.
MaintainsVLANconfigurationconsistencyacrossacommonnetworkadministrationdomain
Question28.
[1mark]
WhichofthefollowingbestdescribesthefunctionalityofaVTPClient?
a.
CreateVLANS
b.
ModifyVLANS
c.
DeleteVLANS
d.
Noneoftheabove
e
a,bandc
Question29.[1mark]
Whichofthefollowingbestdescribestrunking?
a.
AllowsmultipleVLANtrafficbetweenswitchports
b.
EnsuresaccurateandconsistentVLANconfigurationsacrosstheLAN
c.
Allowsaswitchtocreate,editanddeleteVLANSifinclientmode
d.
Eliminateslooping
Question30.[2Marks]
WritetheroutercommandstoconfigureOSPFforthenetworks155.2.0.0/16inarea0and197.2.5.0/24inarea1.Donotincluderouterpromptsandassumeyouarealreadyinconfigmode.
Question31.[2Marks]
WriteanACLwhichwillpermitallwebtrafficfromthe200.70.24.0/24networktothe100.5.0.0/16network.Donotincluderouterpromptsandassumeyouarealreadyinconfigmode.
Question32.[2Marks]
WritetheswitchconfigurationcommandstoconfiguretheswitchadminVLAN1withtheipaddress195.17.5.1/24.Donotincluderouterpromptsandassumeyouarealreadyinconfigmode.
Question33.[2Mark]
WritetheconfigurationcommandstosettherouternametoBeijingandsetanencryptedenablemodepasswordtococonut.Donotincluderouterpromptsandassumeyouarealreadyinconfigmode.
KEY:
28,Routerospf1
Network155.2.0.00.0.255.255area0
Network197.2.5.00.0.0.255area1
29,access-list101permittcp200.70.24.00.0.0.255100.5.0.00.0.255.255eq80/www
30,interfacevlan1
Ipaddress195.17.5.1255.255.255.0
31,hostnameBeijing
Enablesecretcoconut
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