CCNA路由协议和概念第5单元Word格式文档下载.docx
- 文档编号:22245101
- 上传时间:2023-02-03
- 格式:DOCX
- 页数:24
- 大小:258.01KB
CCNA路由协议和概念第5单元Word格式文档下载.docx
《CCNA路由协议和概念第5单元Word格式文档下载.docx》由会员分享,可在线阅读,更多相关《CCNA路由协议和概念第5单元Word格式文档下载.docx(24页珍藏版)》请在冰豆网上搜索。
2pointsforOption1
0pointsforanyotheroption
2
Thisitemreferencescontentfromthefollowingareas:
CCNAExploration:
NetworkFundamentals
∙5.3.4ARoute-ThePathtoaNetwork
WhatinformationisaddedduringencapsulationatOSILayer3?
sourceanddestinationMAC
sourceanddestinationapplicationprotocol
sourceanddestinationportnumber
sourceanddestinationIPaddress
2pointsforOption4
∙5.1.1NetworkLayer-CommunicationfromHosttoHost
3
Inaconnectionlesssystem,whichofthefollowingiscorrect?
Thedestinationiscontactedbeforeapacketissent.
Thedestinationisnotcontactedbeforeapacketissent.
Thedestinationsendsanacknowledgementtothesourcethatindicatesthepacketwasreceived.
Thedestinationsendsanacknowledgementtothesourcethatrequeststhenextpackettobesent.
2pointsforOption2
∙5.1.3TheIPv4Protocol-Connectionless
4
WhichIPpacketfieldwillpreventendlessloops?
type-of-service
identification
flags
time-to-live
headerchecksum
∙5.1.7IPv4PacketHeader
5
Whichportionofthenetworklayeraddressdoesarouterusetoforwardpackets?
hostportion
broadcastaddress
networkportion
gatewayaddress
2pointsforOption3
∙5.2.5HowDoWeSeparateHostsIntoNetworks?
-HierarchicalAddressing
6
Refertotheexhibit.Usingthenetworkintheexhibit,whatwouldbethedefaultgatewayaddressforhostAinthe192.133.219.0network?
192.135.250.1
192.31.7.1
192.133.219.0
192.133.219.1
∙5.3.1DeviceParameters-SupportingCommunicationOutsideOurNetwork
7
Ifthedefaultgatewayisconfiguredincorrectlyonthehost,whatistheimpactoncommunications?
Thehostisunabletocommunicateonthelocalnetwork.
Thehostcancommunicatewithotherhostsonthelocalnetwork,butisunabletocommunicatewithhostsonremotenetworks.
Thehostcancommunicatewithotherhostsonremotenetworks,butisunabletocommunicatewithhostsonthelocalnetwork.
Thereisnoimpactoncommunications.
8
Whatisthepurposeofadefaultgateway?
physicallyconnectsacomputertoanetwork
providesapermanentaddresstoacomputer
identifiesthenetworktowhichacomputerisconnected
identifiesthelogicaladdressofanetworkedcomputeranduniquelyidentifiesittotherestofthenetwork
identifiesthedevicethatallowslocalnetworkcomputerstocommunicatewithdevicesonothernetworks
2pointsforOption5
9
Whattypeofroutingusesinformationthatismanuallyenteredintotheroutingtable?
dynamic
interior
static
standard
∙5.4.2StaticRouting
10
WhenthedestinationnetworkisnotlistedintheroutingtableofaCiscorouter,whataretwopossibleactionsthattheroutermighttake?
(Choosetwo.)
TheroutersendsanARPrequesttodeterminetherequirednexthopaddress.
Therouterdiscardsthepacket.
TherouterforwardsthepackettowardthenexthopindicatedintheARPtable.
Therouterforwardsthepackettotheinterfaceindicatedbythesourceaddress.
Therouterforwardsthepacketouttheinterfaceindicatedbythedefaultrouteentry.
Option2andOption5arecorrect.
1pointforeachcorrectoption.
0pointsifmoreoptionsareselectedthanrequired.
∙5.3.7PacketForwarding-MovingthePacketTowarditsDestination
11
Whatarethekeyfactorstoconsiderwhengroupinghostsintoacommonnetwork?
(Choosethree.)
gateways
purpose
physicaladdressing
softwareversion
geographiclocation
ownership
Option2,Option5,andOption6arecorrect.
∙5.2.1Networks-SeparatingHostsintoCommonGroups
12
Whatisacomponentofaroutingtableentry?
theMACaddressoftheinterfaceoftherouter
thedestinationLayer4portnumber
thedestinationhostaddress
thenext-hopaddress
∙5.3.5TheDestinationNetwork
13
Whichintermediarydevicescouldbeusedtoimplementsecuritybetweennetworks?
router
hub
switch
firewall
accesspoint
bridge
Option1andOption4arecorrect.
∙5.2.3WhySeparateHostsIntoNetworks?
-Security
14
Whatarethreecommonproblemswithalargenetwork?
toofewbroadcasts
performancedegradation
securityissues
limitedmanagementresponsibility
hostidentification
protocolcompatibility
Option2,Option3,andOption5arecorrect.
∙5.2.2WhySeparateHostsIntoNetworks?
-Performance
15
Refertotheexhibit.Alldevicesshownintheexhibithavefactorydefaultsettings.Howmanybroadcastdomainsarerepresentedinthetopologythatisshown?
3
4
5
7
8
11
16
Whichthreestatementsaretrueaboutroutesandtheiruse?
Ifnoroutetothedestinationnetworkisfound,thepacketisreturnedtothepreviousrouter.
Ifthedestinationnetworkisdirectlyconnected,therouterforwardsthepackettothedestinationhost.
Ifmultiplenetworkentriesexistforthedestinationnetwork,themostgeneralrouteisusedtoforwardthepacket.
Ifnorouteexistsforthedestinationnetworkandadefaultrouteispresent,thepacketisforwardedtothenext-hoprouter.
Iftheoriginatinghosthasadefaultgatewayconfigured,thepacketforaremotenetworkcanbeforwardedusingthatroute.
Ifahostdoesnothavearoutemanuallyconfiguredforthedestinationnetwork,thehostwilldropthepacket.
Option2,Option4,andO
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- CCNA 路由 协议 概念 单元
![提示](https://static.bdocx.com/images/bang_tan.gif)