V31 连线题及拖图题-清晰版.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,840-602 V31,连线题及拖图题,清晰版,根据公开资料整理,但不能保证里面的答案完全正确,还请辩证的参考答案,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 LAN,Detects 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,Antispyware,Antivirus,IDS,firewall,315,、,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 right,S 10.1.1.0/24 1/0via 10.1.2.2,R 10.1.1.0/24 120/3via 10.1.3.1.serial0,D 10.1.1.0/24 90/2171416via 10.1.5.5.serial0,S 10.1.1.0 is directly connected serial1,O 10.1.1.0/24 110/789via 10.1.3.1.serial0,First preference,Second preference,Third preference,Fourth preference,Fifth preference,316,、,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,DR,has a default administrative distance of 90,默认的管理距离是,90,eigrp,is vendor-specific,has a default administrative distance of 90,ospf,uses 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 right,carries 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 Port,carries traffic for a single VLAN,connects an end-user workstation to switch,user a straight-through cable to connect a device,Trunk Port,user 802.1q to identify traffic from different VLANS,carries traffic for multiple VLANS,facilitates inter VLAN communication when connected to a Layer 3 device,318,Bits,packets,UDP,Ip addresses,segments,MAC address,windowing,routing,switching,Netwok layer,packets,ip address,routing,Transport layer,segments,windowing,UDP,319,the IOS is located and loaded based on boot system commands in NVRAM,加载,IOS,If no ios sloacted,the setup dialog imtiates,the 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 mode,the bootstrap loader in ROM executes,加载,ROM,中的微代码,Step 1,Step 2,Step 3,Step 4,Step 5,320,0 directly connected network,1 static router referencing IP address of next hop,20,90 internal EIGRP router,100,110 OSPF,120 RIP,130,RIP,OSFP,static router referencing IP address of next hop,internal EIGRP router,directly connected network,321 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 right,10.1.1.10,10.1.0.14,10.2.1.3,10.1.4.6,10.1.0.123,10.6.8.4,Next hop 192.168.1.1,10.2.1.3,10.6.8.4,Next 192.168.2.2,10.1.0.14,10.1.0.123,Next 192.168.3.3,10.1.1.10,10.1.4.6,322,holddown time保持时间,poison reverse,路由中毒,Count to nfinity,lsa,split 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.,323,Layer 1 problem,Layer 2 problem,Layer 3 problem,port operational,port disable,Serial0/1 is up,，,line protocol is up,Serial0/1 is up,，,line protocol is down,Serial0/1 is down,，,line protocol is down,Serial0/1 is administratively,，,line protocol is down,324,faster 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 V1,susceptible to routing loopsless complex configuration,sends frequent updates,exchanges full routing table in updates,ospf,requires more memory and processing power,uses only event-triggered updates,same topology information held by all routers,faster convergence,325,router 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,crossover,PC to router Fa0/0,switch 1 port Fa0/1 to switch2 port Fa0/1,straight-through,PC to switch Fa0/1,router to hub,rolover,PC serial port to switch console port,326,Interactive configurationProvides access to all other router commands,Commands that affect interfaces/processes only,Commands that affect the entire system,Limited to basic monitoring commands,User EXEC mode,Privileged EXEC mode,Global configuration mode,Specific configuration modes,Setup mode,327,root,listening,learning,active,forwarding,blocking,populating the MAC address table but not forwarding data frames,sending and receiving data frames,preparing to forward dated frames without populating the MAC address table,preventing the use of looped paths,328,ip default-gateway,interface vlan1,hostname,ip address,enable,no shutdown,configure terminal,Allows access to high-level testing commands such as debug,Allows access to configuration commands that affect the system as a whole,Sets the system name,Activates 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,329,Deny ip 192.168.35.55 0.0.0.0 host 192.168.35.66,Deny ip 192.168.35.16 0.0.0.15 host 192.168.35.66,Permit ip any any,Permit ip 192.168.36.0 0.0.0.255 host 192.168.35.66,Block only the users attached to the e0 interface of the Missouri router from access to the accounting server,Block a user from the Alabama e0 network from access to the accounting server,prevent all users from outside the enterprise network from accessing the accounting server,330,0.0.0.0,192.168.125.0,192.168.125.32,192.168.125.34,255.255.255.255,Ip,Tcp,udp,Protocol,ip,Address,192.168.125.34,Mask,0.0.0.0,331,332,333,334,335,336,verify URL,verify NIC operation,verify IP configuration,verify Ethernet cable connecion,source,Step1,Step2,Step3,Step4,taraet,337,CIR,DCE,DTE,LMI,PVC,SVC,DLCI,A router is this type of device,The most common type of virtual circuit,Provides status messages between DTE and DCE devices,Identifies the virtual connection between the DTE and the switch,338,0,1,23,63,64,80,128,255,List-number,128,address,64,mask,63,port,23,339,Low speed,Quality,More complex,cost,Limited flexibility,efficient,Point to point advantage,Quality,Point to point disadvantge,Limited flexibility,Circuit switched advantage,efficient,Circuit switched disadvantage,Low speed,Packet switched advantage,cost,More complex,340,The number of point-to-point links in a transmission path,The data capacity of a link,The amount of time required to move a packet from source to destination,The amount of activity on a network resource,Usually refers to the bit error rate of each network link,A configurable value based by default on the bandwidth of the interface,Cost,Load,Bandwidth,Hop count,Reliability,delay,