If RIPng authentication is configured, the password for authentication will be in the first message in the route update packet.

As shown in the figure, three sets of exchanges are exchanged for SW1.SW2 SW3 SW1 SW1 SW2 SW2 and , where I have a root bridge, and the road has a chain between them.
The configuration of the root sends the BPDU, and the management needs to configure which generation guarantee mechanism to prevent the tree protection chain from having problems.

As shown below, the map field, the correct description is

Which of the following routing tools is specific to BGP ?( )( )?

As shown in the following figure, the IS-IS overload bit is set in the configuration of R3. Which of following statements are true? (Multiple Choice)