ccna 200 301 syllabus examples of a grammar test

ccna 200 301 syllabus examples of a grammar test.CCNA Study and Lab Guide DanceIn the multiple access network shown in Figure 8-2-7, DRs and BDRs are elected,all DROther (except DRs and BDRs) routers establish adjacencies with DRs and BDRs, and DROther routers stay in the Two-Way state with each other, and the reduction in router adjacencies speeds up the convergence of the network. If there is an updated routing entry on the network, the DROther router sends to multicast address 224.0.0.6. 224.0.0.6 is the multicast address of the DR and BDR. The multicast address used by the DROther router is 224.0.0.5oDR uses the multicast address of 224.0.0.5 to send LSAs to the entire network, avoiding the use of unicast to notify each router separately, which reduces the bandwidth usage of the network and thus uses bandwidth resources more efficiently. If a router leaves, this router also establishes an adjacency relationship with the DR and BDR only, and the DR announces the LSA information to achieve fast convergence of the network.From the above analysis, it is clear that DR and BDR need to be elected in a network with multiple accesso The networks with broadcast type multiple access are Ethernet,Token Ring and FDDI; non-broadcast type multiple access networks are Frame Relay, X.25 and SMDSo both broadcast and non-broadcast multiple access networks are multipleaccess networks that require election of DR and BDRoDR and BDRo election is not required in point-to-point (PPP or HDLC encapsulation) or point-to-multipoint (manually configured by the administrator) networks. 2.RouterID electionRouter ID, or RID for short, is used to uniquely identify each router in an OSPF domain. If two OSPF routers have the same RID.cannot establish an adjacency relationship with each other. RIDs are in the form of IP addresses and are elected in the following three orders on Cisco routers. The router-id configuration command has the highest priority. Use the "show ip protocolsw command on router R3 to view the running IP protocols, showing