V31连线题及拖图题清晰版

840-602 V31 连线题及拖图题清晰版根据公开资料整理根据公开资料整理,但不能保证里面的答案完全正确但不能保证里面的答案完全正确,还请辩还请辩证的参考答案证的参考答案314、Drag the function on the left to the matching security appliance orapplication on the right(not all functions are uses)Blocks unknown MAC address from accessing a wireless LANDetects software designed to capture sensitive information and removes it from the computer电脑检测软件定期捕获敏感信息Prevents known malicious programs from being installed on Workstations在工作站上预防已在恶意程序运行Filters traffic based on source and destination IP address or traffic type基于源目的IP地址或者流量类型来过滤流量Identifies malicious network traffic and alerts network personnel 识别恶意网络流量并向网络人员报警AntispywareAntivirusIDSfirewall315、if a cisco route has learned about network 10.1.1.0 from multiple sources,the router will select and install only one entry into the routing lable.Indicate the order of preference that the router will use by draggig the routes on the left to the order of pregererce category on the rightS 10.1.1.0/24 1/0via 10.1.2.2R 10.1.1.0/24 120/3via 10.1.3.1.serial0D 10.1.1.0/24 90/2171416via 10.1.5.5.serial0S 10.1.1.0 is directly connected serial1O 10.1.1.0/24 110/789via 10.1.3.1.serial0First preferenceSecond preferenceThird preferenceFourth preferenceFifth preference316、drag the description on the left to the routing protocol on the right.(not all potions are used)is vendor-specific 厂商指定uses cost as its metric 用成本作为metric值uses hop count as its metric 用跳数作为metric值uses the Bellman-Ford algorithm 用贝尔曼福特算法elects a DR on each multiaccess network 选举DRhas a default administrative distance of 90 默认的管理距离是90eigrpis vendor-specifichas a default administrative distance of 90ospfuses cost as its metric elects a DR on each multiaccess network 317、drag the options on the left under the type of switch port that they describe on the rightcarries traffic for a single VLAN 携带单独的VLAN数据facilitates inter VLAN communication when connected to a Layer 3 device 使用三层设备来使VLAN间的信息传播connects an end-user workstation to switch 用户或客户端连接到一台交换机carries traffic for multiple VLANS 传送多个VLAN信息user 802.1q to identify traffic from different VLANS 用802.1q去封装信息user a straight-through cable to connect a device 使用直通线去来连接一台设备Access PortAccess Portcarries traffic for a single VLAN connects an end-user workstation to switch user a straight-through cable to connect a device Trunk PortTrunk Portuser 802.1q to identify traffic from different VLANS carries traffic for multiple VLANS facilitates inter VLAN communication when connected to a Layer 3 device 318BitspacketsUDPIp addressessegmentsMAC addresswindowingroutingswitchingNetwok layerNetwok layerpacketsip addressroutingTransport layerTransport layersegmentswindowingUDP319 the IOS is located and loaded based on boot system commands in NVRAM 加载IOSIf no ios sloacted,the setup dialog imtiatesthe router looks for the configuration file in NVRAM 加载配置文件if no configuration file is located，the setup dialog initiates 如果没有配置文件，进入初始化状态the power-on self test executes 开机自检The router enters ROMmonitor modethe bootstrap loader in ROM executes 加载ROM中的微代码Step 1Step 2Step 3Step 4Step 53200 directly connected network1 static router referencing IP address of next hop2090 internal EIGRP router100110 OSPF120 RIP130RIPOSFPstatic router referencing IP address of next hopinternal EIGRP routerdirectly connected network321 routing has been configured on the local router with these commands:local(config)#ip router 0.0.0.0 0.0.0.0 192.168.1.1 local(config)#ip router 10.1.0.0 255.255.255.0 192.168.2.2 local(config)#ip router 10.1.0.0 255.255.0.0 192.168.3.3drag each destination ip address on the left to its correct next hop address on the right10.1.1.1010.1.0.1410.2.1.310.1.4.610.1.0.12310.6.8.4Next hop 192.168.1.1Next hop 192.168.1.110.2.1.310.6.8.4Next 192.168.2.2Next 192.168.2.210.1.0.1410.1.0.123Next 192.168.3.3Next 192.168.3.310.1.1.1010.1.4.6322 holddown time 保持时间poison reverse 路由中毒Count to nfinitylsasplit horizon 水平分割A router learns from its neighbor that a route is down and the route sends an update back to the neighbor with an infinite metric to that route.The packets flooded when a topology change occurs,causing network routers to update their topological databases and recalculate routes.This prevents sending information about a route back out the same interface that originally learned about the route.For a given period this causes the route to ignore any updates with poorer metrics to a lost network.323Layer 1 problemLayer 2 problemLayer 3 problemport operational port disableSerial0/1 is up，line protocol is up Serial0/1 is up，line protocol is downSerial0/1 is down，line protocol is downSerial0/1 is administratively，line protocol is down324faster convergence快速收敛sends frequent updates发送频繁更新less complex configuration 不太复杂的配置susceptible to routing loops 容易受到路由环路的影响uses only event-triggered updates 只使用触发更新exchanges full routing table in updates 升级时改变所有路由表same topology information held by all routers 相同的路由信息对于所有路由器requires more memory and processing power 需要更多的内存来处理数据RIP V1RIP V1susceptible to routing loops less complex configuration sends frequent updatesexchanges full routing table in updatesospfospfrequires more memory and processing power uses only event-triggered updatessame topology information held by all routers faster convergence325router to hub PC to router Fa0/0 PC to switch Fa0/1 modem to router auxiliary port PC serial port to switch console port switch 1 port Fa0/1 to switch2 port Fa0/1 crossovercrossoverPC to router Fa0/0 switch 1 port Fa0/1 to switch2 port Fa0/1 straight-throughstraight-throughPC to switch Fa0/1 router to hub roloverroloverPC serial port to switch console port 326Interactive configurationProvides access to all other router commandsCommands that affect interfaces/processes onlyCommands that affect the entire systemLimited to basic monitoring commandsUser EXEC modePrivileged EXEC modeGlobal configuration modeSpecific configuration modesSetup mode327rootlisteninglearningactive forwardingblockingpopulating the MAC address table but not forwarding data frames sending and receiving data frames preparing to forward dated frames without populating the MAC address tablepreventing the use of looped paths 328 ip default-gatewayinterface vlan1 hostnameip address enableno shutdownconfigure terminalAllows access to high-level testing commands such as debugAllows access to configuration commands that affect the system as a whole Sets the system nameActivates the interface configuration mode for VLAN Enables the switch management interface Sets the switch management IP address Allows the switch to be managed from remote networks 329Deny ip 192.168.35.55 0.0.0.0 host 192.168.35.66Deny ip 192.168.35.16 0.0.0.15 host 192.168.35.66Permit ip any anyPermit ip 192.168.36.0 0.0.0.255 host 192.168.35.66Block only the users attached to the e0 interface of the Missouri router from access to the accounting serverBlock a user from the Alabama e0 network from access to the accounting serverprevent all users from outside the enterprise network from accessing the accounting server3300.0.0.0192.168.125.0192.168.125.32192.168.125.34255.255.255.255IpTcpudpProtocolProtocolipAddressAddress192.168.125.34MaskMask0.0.0.0331332333334335336verify URL verify NIC operationverify IP configurationverify Ethernet cable connecionsourcesourceStep1Step2Step3Step4taraettaraet337CIRDCEDTELMIPVCSVCDLCIA router is this type of deviceThe most common type of virtual circuitProvides status messages between DTE and DCE devicesIdentifies the virtual connection between the DTE and the switch338 0123636480128255List-numberList-number128addressaddress64maskmask63portport23339Low speedQualityMore complexcostLimited flexibilityefficientPoint to point advantagePoint to point advantageQualityPoint to point disadvantgePoint to point disadvantgeLimited flexibilityCircuit switched advantageCircuit switched advantageefficientCircuit switched disadvantageCircuit switched disadvantageLow speedPacket switched advantagePacket switched advantagecostMore complex340The number of point-to-point links in a transmission pathThe data capacity of a linkThe amount of time required to move a packet from source to destinationThe amount of activity on a network resourceUsually refers to the bit error rate of each network linkA configurable value based by default on the bandwidth of the interfaceCostLoadBandwidthHop countReliabilitydelay