Layer 3 devices like routers receive data frames based on () Forwarding data frames.

In the broadcast network as shown in the figure, 0SPF runs on four routers. And in the same are a. The same network segment. SPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False)

The following description of the Forwarding status in the spanning tree protocol is wrong (). ()*

Which of the following advantages does the single-arm routing method achieve routing intercommunication between Vlan? ()

In the network shown in the figure below, switch A and router A are connected by two links, and the two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link performs data forwarding It needs to carry VLAN TAG100, and switch A uses trunk link. Which of the following configurations should be used for switch A? ()