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<问答题>什么是毒性逆转的水平分割？解析
<问答题>BGP neighbors building process？解析
<问答题>BGP Administrative distance？解析
<问答题>What is the purpose of an administrative distance？解析
<问答题>what is administrative distance. 解析
<问答题>简述Local_preference的作用范围。解析
<问答题>HSRP state？解析
<问答题> Routers R1， R2， and R3 are configured in a hub and spoke frame relay environment， with router R1 as the hub. You have configured Router R1， Router R2， and Router R3 to run EIGRP over the frame relay connections. No sub-interfaces are used. You have configured a single IP subnet on all the Frame Relay interfaces. Router R1 can reach both router R2 and R3， but R2 and R3 can not reach each other. What is the probable cause of this problem？解析
<单选题>Customer X has a hub-and-spoke Frame Relay network， with a central office and two branch offices （RemoteA and RemoteB）. Each location has only one physical link to the Frame Relay cloud and RemoteB has a router that is not a Cisco router. Since the installation， there is no connectivity between RemoteB and the central office. What is a possible solution to this issue？（）解析
<单选题>Customer X has a hub-and-spoke Frame Relay network， with a central office and two branch offices（RemoteA and RemoteB）. Each location has only one physical link to the Frame Relay cloud and RemoteB has a router that is not a Cisco router. Since the installation，there is no connectivity between RemoteB and the central office. What is a possible solution to this issue？（）解析
<问答题>r1 is the hub ， multipoint mode subinterface， r2 and r3 is spoke， when r2 down at the spoke， What will r1 react？how about r3？解析
<单选题> Refer to the exhibit.How many broadcast domains exist in theexhibited topology？（）解析
<单选题> Refer to the exhibit. You would like to guarantee 7 Mb/s for FTP traffic in your LAN, as it seems that peer-to-peer traffic is taking up a large amount of bandwidth. When testing the configuration, you notice that FTP traffic doesn't reach 7 Mb/s. What is the problem?（）解析
<问答题>which BGP attributes will influence inbound flow？解析
<多选题> Refer to the exhibit. Users from the Engineering VLAN complain that every time Business VLAN users have a network connectivity issue， the Engineering VLAN users usually have problems experiencing slow response or network connectivity problems. After troubleshooting， an unauthorized switch 2 was found. This unauthorized switch has been a regular problem， assuming the root bridge function under the spanning-tree domain and causing the Engineering VLAN to be unstable. Which three of these actions could be suggested to fix the problem？（）解析

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