2024年软件认证工程师考试-思科认证笔试历年真题荟萃含答案

2024年软件认证工程师考试-思科认证笔试历年真题荟萃含答案（图片大小可自由调整）答案解析附后卷I一.参考题库(共25题)1.TheIPnetworkissubnettedusinga/24mask.Howmanyusablenetworksandhostaddressescanbeobtainedfromthis?（）A、1networkwith254hostsB、4networkswith128hostsC、2networkswith24hostsD、6networkswith64hostsE、8networkswith36hosts2.Which Modular QoS CLI （MQC） based output queuing method is designed to support multiple trafficclasses including VoIP traffic， mission-critical traffic， interactive traffic， and default class traffic？（）A、CBWFQB、CB-WREDC、LLQD、Custom QueueingE、WRR Queueing3.ErrordetectionschemescheckerrorsinthedatapacketsbyreadingwhichfieldframeIDs?（）A、MTUB、PDUC、FCSD、FlagE、MACF、BRI4.What accurately describes the usage of a Cisco AutoQoS command？（）A、on Catalyst switches， the show auto discovery qos command is used to display the data collected during the Auto-Discovery phaseB、on Catalyst switches， the show auto qos command is used to display packet statistics of all classes that are configured for all service policiesC、on Cisco routers， the show mls qos maps command is used to verify the CoS-to-DSCP maps for egress packet queuingD、on Cisco routers， the show auto qos command is used to display the AutoQoS interface templates， policy maps， class maps， and ACLs5.A network administrator enters the command clear ip route * and as a result he sees the message，"Please update the network documentation to record why the ip routing table was cleared." Whichrouter feature was used in this case？（）A、NetFlowB、SNMPC、DebugD、SysLogE、EEMF、CEF6.Refer to the exhibit. Based upon the debug output that is shown， which three statements aboutHSRP are true？（） A、The router with IP address 12 is using default HSRP priorityB、The IP address 15 is the virtual HSRP IP addressC、The priority of the router with IP address 12 is preferred over the router with IPaddress 11D、The router with IP address 11 haspreempt configuredE、The final active router is the router with IP address 11F、The router with IP address 12 has nonpreempt configured7.All-in-one UTM security gateways are starting to displace routers in many small business networks. What does UTM stand for？（）A、 United Threat MonitorB、 Universal Threat ManagerC、 Unified Threat ManagementD、 Ultimate Threat Monitoring8.CorelDRAW的字体调整可否预览（）A、可以B、不可以9.当由于硬件性能限制当前作图区域的图像不能及时更新时可以使用（）A、撤消B、重做C、刷新窗口10.Newswitcheshavebeenpurchasedforanetworkupgrade.Theobjectiveforthenetworkdesignemphasizesefficient,error-freetransportinsteadoffasttransport.Whichswitchingmodeshouldbeconfiguredonthenewswitchestoprovideerror-freetransporttothenetwork?（）A、cut-throughB、fragment-freeC、frame-filteringD、store-and-forwardE、802.1qforwardingF、VTPtransparentmode11.AnetworkdesignshowsthatR1hasfourdifferentpossiblepathsfromitselftotheDataCentersubnets. Whichoneofthefollowingcommandsismostlikelytoshowyouallthepossiblenext-hopIPaddressesforthesefourpossibleroutes?（）A、showipeigrptopologyB、showipeigrptopologyall-linksC、showiprouteeigrpD、showiprouteeigrpall-linksE、showipeigrptopologyall-learned12.其中哪一个是有效的HSRP虚拟MAC地址？（）A、 0000.0C07.AC15B、 0000.5E00.01A3C、 0007.B400.AE01D、 0007.5E00.B30113.哪种说法描述VRRP对象跟踪？（）A、它监视交通流量和链路利用率。B、它确保了最佳的VRRP路由器是虚拟路由器主的组。C、它会导致流量动态地移动到更高的带宽链路。D、它阻挠人在这方面的中间人攻击。14.Which feature would prevent guest users from gaining network access by unplugging an IP phone andconnecting a laptop computer？（）A、IPSec VPNB、SSL VPNC、port securityD、port security with statically configured MAC addressesE、private VLANs15.Whichcharacteristicsarerepresentativeofalink-stateroutingprotocol?（）A、providescommonviewofentiretopologyB、exchangesroutingtableswithneighborsC、calculatesshortestpathD、utilizesevent-triggeredupdatesE、utilizesfrequentperiodicupdates16.ISL is being configured on a Company switch.  Which of the following choices are true regarding  the ISL protocol？ （）A、 It can be used between Cisco and non-Cisco switch devices.B、 It calculates a new CRC field on top of the existing CRC field.C、 It adds 4 bytes of protocol-specific information to the original Ethernet frame.D、 It adds 30 bytes of protocol-specific information to the original Ethernet frame.17.YouarethenetworkconsultantfromC.PleasepointoutthereasonthatSTPrequiredwhenVLANsdonotspanaccesslayerswitches.（）A、ensurealoop-freetopologyB、protectagainstuser-sideloopsC、supportbusinessapplicationsD、riskoflostconnectivitywithoutSTP18.You are using VTP version 2 in your network to transport VLAN information between switches. Whenadding a switch to the network that has been used in the lab previously， you notice that a lot of the existingVLANs have been deleted or replaced with other names. What can you do to prevent this from happeningin the future， without losing all VTP features that you are using today？（）A、configure a hard-to-guess VTP domain nameB、use a hard-to-guess VTP passwordC、use VTP transparent modeD、implement VTP version 319.What is the three main step of using the QoS feature with MQC command line interface？20.Click the Exhibit button. As shown in the exhibit， a customer has several interconnected core rings. They want to create several irtual rings？utilizing their STM-64 backbone （nodes 1， 2， 3， and 4）.  What do you recommend？ （） A、 SNCP ringsB、 MS-SPRing ringsC、 1：N protection on all core circuitsD、 dual-ring interconnect with MS-SPRing rings21.请参见图示。此交换机将加入生产网络。根据图中所示的输出可确认有关 VLAN 和 VTP 工作情况的哪两项事实？（）A、网络管理员能够在此交换机上配置在本地有效的 VLAN。B、只能通过 VTP 通告将 VLAN 添加到此交换机上的 VLAN 数据库。C、会向同一 VTP 域内的所有其它交换机发送此交换机上配置的所有 VLAN 的信息。D、此交换机将丢弃同一个 VTP 域内配置的交换机发出的所有 VTP 通告。E、如果同一个 VTP 域内其余交换机的配置修订版号较高，此交换机加入网络不会对该 VTP 域的运行造成中断。22.An administrator of a peer-to-peer server application reports that the maximum bandwidth that his application receives is 90 Mb/s. You have an 8-port，100-Mb/s EtherChannel bundle on the switching infrastructure between the two servers， resulting in a bidirectional throughput of more than what is recorded. Which two solutions would allow for more bandwidth for the application？（）A、change the EtherChannel default hashing algorithm from XOR to use source port Layer 4 port load balancing to better load balance the trafficB、change the EtherChannel default hashing algorithm from XOR to use destination Layer 4 port load balancing to better load balance the trafficC、have the application recoded to use multiple connections instead of a single connection so EtherChannel can better load balance the trafficD、upgrade the CPU and memory of the compute devices so they can better process trafficE、upgrade the EtherChannel bundle to a single gigabit link because EtherChannel is not well suited for single-connection traffic23.Due to the internal Fiber Channel over Ethernet architecture of the Cisco UCS ,what does each VSANrequire?（）A、it is carried on only 1 vhba per ucs systemB、it has a qos policy in order to maintain traffic priorityC、there is a supporting vsan to carry the fcoe trafficD、there is a dedicated VLAN to carry the FCoEtraffic24.以下哪些是vlan trunk端口的有效模式？（）A、transparentB、autoC、onD、desirableE、blockingF、forwarding25.在这个VLSM地址方案，有什么汇总地址会发送到路由器A？（）A、 /16B、 /20C、 /24D、 /16E、 /17F、 /16卷II一.参考题库(共25题)1.Whichoptionistrueregardingthesynchronizationrule?（）A、DonotuseorinternallyadvertisearouteuntiltherouteislearnedfromasourceotherthanBGP.B、DonotuseoradvertisearouteuntiltherouteislearnedfromaBGPpeer.C、DonotuseoradvertiseroutesmarkedPARTIAL.D、WaituntilaCONFIRMmessageisreceivedbeforeusingroutesfromBGPneighbors.2.What is the default BGP scanner time？（）A、10 minutesB、5 minutesC、120 secondsD、60 secondsE、30 minutes3.The cisco lifecycle services approach for wireless solutions provides a framework for which of the following opportunities？（）A、partners having a discussion with customers about the minimum service components needed to successfully deploy a wireless solutionB、customers determining a competitor’s strategy for adopting advanced technologiesC、partners choosing the right products for their customersD、customers choosing the right products for their networkE、customers defining the correct strategy for advanced technology adoption4.哪两种说法正确描述了命令ip route 4 48 ？（）A、目的主机地址为 0 的数据包将被转发到地址 B、该路由的目的网络地址是 C、此命令中地址 4 是下一跳路由器地址D、此命令是在接口配置模式下发出的E、此命令用于定义一条静态路由5.三层交换机通过Trunk端口连接到一个anther。假设默认交换机配置，其中交换机如何当选为VLAN1的生成树实例中的根桥？（）A、具有最低MAC地址的交换机B、用最高 MAC地址的交换机C、交换机巫婆最高 IP地址D、具有最低IP地址的交换机6.Refertotheexhibit.Network/8isbeingadvertisedtoautonomoussystem65550viabothexternallinks.Whichstatementaboutthepreferredpathtothe/8networkistrue?（） A、RouterR2willbepreferredbecauseithasthehigherneighborIPaddress.B、RouterR2willbepreferredbecauseitsneighborhasalowerautonomoussystemnumber.C、RouterR1willbepreferredbecauseithasalowerlocalpreference.D、RouterR2willbepreferredbecauseithasahigherlocalpreference.E、RouterR1willbepreferredbecauseitsneighborhasthehigherautonomoussystemnumber.F、RouterR1willbepreferredbecauseithasthelowerneighborIPaddress.7.Whichconnectionsallowtheuseoffull-duplexEthernet?（）A、SwitchtohostB、SwitchtoswitchC、HubtohubD、SwitchtohubE、Hosttohost8.WhichstatementsaretrueaboutEIGRPsuccessorroutes(Choosetwo.)（）。A、AsuccessorrouteisusedbyEIGRPtoforwardtraffictoadestination.B、Successorroutesaresavedinthetopologytabletobeusediftheprimaryroutefails.C、Successorroutesareflaggedas"active"intheroutingtable.D、Asuccessorroutemaybebackedupbyafeasiblesuccessorroute.E、Successorroutesarestoredintheneighbortablefollowingthediscoveryprocess.9.RouterR1hastwoLANinterfacesandthreeserialinterfacesenabledforIPv6.Alltheinterfacesuselinklocaladdressesautomaticallygeneratedbytherouter. WhichofthefollowingcouldbethelinklocaladdressofR1'sinterfaceS0/0?（）A、FEA0::200:FF:FE11:0B、FE80::200:FF:FE11:1111C、FE80::0213:19FF:FE7B:0:1D、FEB0::211:11FF:FE11:111110.WhichWLANdeviceisoftenusedtomakewirelessconnectionsbetweenbuildingsorcampuses?（）A、routerB、bridgeC、accesspointD、clientadapter11.交换机CAT1和CAT2通过F0/13端口连接， 交换机之间封装是的802.1q， 在VLAN10中本征VLAN被修改成了VLAN10，在CAT2上没有指定。这样配置就会出现什么情况？（）A、802.1Q巨人帧就可能饱和的链接。B、VLAN10 CAT1和VLAN1 CAT2将发送未标记的帧。C、会出现一个本地VLAN不匹配的错误消息。D、VLAN10 CAT1和VLAN1 CAT2将发送标记帧。12.One of your customers has decided to deploy location-based services in addition to existing wireless services. the customer requires that the additional access points to be deployed in  monitor-only modE. The most likely reason for this requirement is that the customer has which of these existing wireless devices？（）A、data collectionB、802.11b/g voipC、802.11b and g clientsD、rfid tags13.WhichWLANdeviceisoftenusedtomakewirelessconnectionsbetweenbuildingsorcampuses?（）A、accesspointB、clientadapterC、bridgeD、router14.You are configuring a Cisco multilayer switch for the Company network.  Which command would  you use to configure a port to act as a routed interface？（）A、 ip routingB、 switchport mode trunkC、 no switchportD、 switchport trunk native vlan 1E、 None of the other alternatives apply15.Refertotheexhibit.WhenrunningOSPF,WhatwouldcauserouterAnottoformanadjacencywithrouterB?（） A、TheloopbackaddressesareondifferentsubnetsB、ThevalueofthedeadtimersontherouteraredifferentC、RoutesummarizationisenabledonbothroutersD、TheprocessindentifieronrouterAisdifferentthantheprocessidentifieronrouterB16.Which two of the following activities are included in the Cisco Unified Communications staff development（）A、Collect Cisco Unified Communications Training MaterialsB、Develop Job Role Training RequirementC、Request for Training BudgetD、Develop Curriculum MapE、Develop Informal Basic Training17.WhichcommandshowsyouractiveTelnetconnections？（）A、showsessionB、showcdpneighborsC、showusersD、showqueue18.Refertotheexibit.Anattempttodenywebaccesstoasubnetblocksalltrafficfromthesubnet.WhichinterfacecommandimmedicatelyremovestheeffectofACL102?（） A、noipaccess-group102inB、noipaccess-group102outC、noipaccess-list102inD、noipaccess-class102outE、noipaccess-class102in19.WhatkindofcableshouldbeusedtoestablishatrunkedlinebetweentwoCatalyst2950switches?（）A、astraight-throughcableB、anEIA/TIA-232serialcableC、anauxiliarycableD、amodemcableE、across-overcable20.什么是三个因素在网络中实现Netflow之前，网络管理员必须考虑的？（）A、CPU利用率B、哪里NetFlow数据将被发送C、设备出口NetFlow数据的数量D、端口可用性E、SNMP版本F、WAN封装21.What two are features of the Cisco Unified CallManager Express QCT?（）A、autodetection of Cisco router components B、automatic download of system parameters from central site C、standards-based autoconfiguration using SIP and SCCP D、support for barcode-scanned input of IP-phone MAC addresses and phone types E、automatic identification of phone types and MAC addresses upon booting the Cisco Unified CallManager Express router22.Thenetworksecuritypolicyrequiresthatonlyonehostbepermittedtoattachdynamicallytoeachswitchinterface.Ifthatpolicyisviolated,theinterfaceshouldshutdown.Whichtwocommandsmustthenetworkadministratorconfigureonthe2950Catalystswitchtomeetthispolicy?（）A、TestKing1(config-if)#switchportport-securitymaximum1B、TestKing1(config)#mac-address-tablesecureC、TestKing1(config)#access-list10permitiphostD、TestKing1(config-if)#switchportport-securityviolationshutdownE、TestKing1(config-if)#ipaccess-group1023.Refer to the exhibit.  How will interface FastEthernnet0/1 respond when an 802.1x-enabled client  connects to the port？  （） A、 The switch will uniquely authorize the client by using the client MAC address.B、 The switch will cause the port to remain in the unauthorized state， ignoring all attempts by the  client to authenticate.C、 The switch port will disable 802.1x port-based authentication and cause the port to transition to  the authorized state without any further authentication exchange.D、 The switch port will enable 802.1x port-based authentication and begin relaying authentication  messages between the client and the authentication server.24.You are installing a Cisco 4402 Series Wireless LAN Controller. Which type of interface shouldyou useon the controller’s distribution port？（）A、1000BASE-SX SFPB、10/100/1000 Mbps RJ45C、10/100 Mbps RJ45D、10000BASE-SX25.WhichcommandhelpsanetworkadministratortomanagememorybydisplayingflashmemoryandNVRAMutilization?（）A、showsecureB、showfilesystemsC、showflashD、showversion卷III一.参考题库(共25题)1.The interface is up and protocol is up. When do u get these messages. 2.At which stage of the Cisco Lifecycle Services approach should customer education presentations occur？ （）A、 PlanningB、 DesignC、 ImplementationD、 OperationE、 Optimization3.WhataretwocomponentsofthediscoveryguideintheCiscoSBRsalesapproach?（）A、CalculateBusinessNeedPriorityAndEvolutionPhaseB、PrioritizeandPrepareSolutionsRecommendationsC、PainPointandImplementationAssessmentD、BusinessNeeds-basedSolutionRecommended4.Refertotheexhibit.WillredistributedRIProutesfromOSPFArea2beallowedinArea1?（） A、RIProuteswillbeallowedinArea1onlyiftheyarefirstredistributedintoEIGRP.B、BecauseNSSAwilldiscardtype7LSAs,redistributedRIProuteswillnotbeallowedinArea1.C、RedistributedRIProuteswillbeallowedinArea1becausetheywillbechangedintotype5LSAsinArea0andpassedonintoArea1.D、RedistributedRIProuteswillbeallowedinArea1becausetheywillbechangedintotype7LSAsinArea0andpassedonintoArea1.E、BecauseArea1isanNSSA,redistributedRIProuteswillnotbeallowed.5.Whentryingtosellasecuritysolutiontoane-commercebusiness,whichthreebusinessneedsshouldyouaddress?（）A、securetransactionsB、timetomarketC、maximumuptimeD、databasebackupsE、revenuegrowthF、scalabilityforfuturegrowth6.Which routing protocol best fits these requirements？（） - Supported by multiple router vendors  - Requires minimum router CPU and memory resources  - Uses a simple routing metric  - Supports manual or automatic route summarizationA、 EIGRPB、 OSPFC、 IS-ISD、 RIPv27.what device sends IGMP Query messages？8.请参见图示。网络管理员需要在网络中添加 IP 电话。应该将 IP 电话连接到哪些设备？（）A、AS1 和 AS2B、DS1 和 DS2C、DS1、DS2 和 CS1D、AS1、AS2、DS1 和 DS29.You are configuring an RF group of controllers that coordinate Radio Resource Managementcalculations. What is the maximum number of WLAN controllers that you can add？（）A、17B、20C、12D、2410.SNMP依赖于（）工作。A、IPB、ARPC、TCPD、UDP11.Refertotheexhibit.Whichtwostatementsaboutthetopologiesshownarecorrect?（） A、Design1isaloopedtriangledesign.B、Design2isaloopedtriangledesign.C、Design2achievesquickconvergenceusingRSTP.D、Bothdesignssupportstatefulservicesattheaggregationlayer.E、Design2isthemostwidelydeployedinenterprisedatacenters.12.Whichstatementistrue,asrelatestoclassfulorclasslessrouting?（）A、RIPV1andOSPFareclasslessroutingprotocols.B、Classfulroutingprotocolssendthesubnetmaskinroutingupdates.C、Automaticsummarizationatclassfulboundariescancauseproblemsondisc……D、EIGRPandOSPFareclassfulroutingprotocolsandsummarizeroutesbydef……13.You enabled CDP on two Cisco Routers which are connected to each other. The Line and Protocol statusfor the interfaces on both routers show as UP but the routers do not see each other a CDP neighbors.Which layer of the OSI model does the problem most likely exist？（）A、PhysicalB、SessionC、ApplicationD、Data-LinkE、Network14.What is the objective of the Cisco Compatible Extensions program？（）A、to provide access to proprietary Cisco IOS software code in order to expand the number of vendors writing wireless codeB、to provide Cisco engineers with the opportunity to certify that any wireless devices that are made by third parties are compatible with Cisco wireless productsC、to provide customers with a broad range of WLAN client devices that have been tested for interoperability with Cisco Aironet innovationsD、to provide third parties with Cisco hardware in order to encourage the development of radical innovation in the area of wireless15.What must be true about the client before upstream traffic stream metrics can be displayed on the CiscoWLC?（）A、must be Cisco Compatible Extensions version 2B、must be Cisco Compatible Extensions version 3C、must be Cisco Compatible Extensions version 4D、must be associated to a Platinum QoS WLANE、must be associated to an access point on a Cisco WLC with code version 5.0 or newer16.A network administrator needs to configure port security on a switch.which two statements are true？（）A、The network administrator can apply port security to dynamic access portsB、The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.C、The sticky learning feature allows the addition of dynamically learned addresses to the runningconfiguration.D、The network administrator can apply port security to EtherChannels.E、When dynamic mac address learning is enabled on an interface，the switch can learn newaddresses，upto the maximum defined.17.常见的网络拓扑结构为星型、环型和（）。18.Which design phase service component includes the development and documentation of the test case or cases used to verify that a deployed infrastructure meets operational， functional， and interface requirements？ Select exactly 1 answer（s） from the following：（）。A、Implementation PlanB、Business PlanC、Staging PlanD、Detailed Design DevelopmentE、Systems Acceptance Test Plan Development19.When configuring cisco secure acs to support wireless eap authentication，which device must be configured as a aaa client？（）A、location applianceB、controller-based access pointsC、wireless clientsD、wireless control systemE、wireless controllers20.数据在网络层时，我们称之为（）。A、段B、包C、位D、帧21.What three tasks must a network administrator perform to properly configure Hot Standby Routing  Protocol （HSRP）？（）A、 Define the encapsulation type.B、 Define the standby router.C、 Define the standby IP address.D、 Enable the standby priority.22.在采用电信号表达数据的系统中，数据有数字数据和（）两种。23.Asthereareseveralloggingmodes,whichmodewillaCISrouterusewhenitstoreslogmessagesinRandomAccessMemory?（）A、syslogloggingB、consoleloggingC、bufferedloggingD、terminallogging24.ARIProuterha