Which of the following description of how to establish a BFD session is wrong?

When BGP establishes a peer connection, both this segment and the peer end will initiate a TCP three-way handshake, so two TCP connections will be established. However, in actual BGP, only one of the TCP connections will be retained. Obtain the peer BGP from the Open message. After Identifier, the BGP peer will compare the size of the local Router ID and the peer Router ID. If the local Router ID is smaller than the peer Router ID, it will be closed. The locally established TCP connection will use the TCP connection actively initiated by the peer. Subsequent BGP message exchange.

Which of the following option packets belong to OSPF protocol packets? (Multiple choice)

Which of the following description about MED is correct? (Multiple choice)

In medium and large WLAN networks, if the VLAN Pool uses HASH to allocate VLANs, the number of users in each VLAN will be evenly divided.