The network is as shown in the figure, and SWA, SWB, SWC, and SWD run RSTP, then which of the following statement is correct? (Multiple choice)

In a certain network environment, there are both switches running RSTP and switches running SIP. What will happen to the network? (Multiple choice)

The state inspection firewall uses the session table to track the active TCP sessions and UDP sessions, and the firewall security policy determines which sessions are established, and the data packets will only be forwarded when they are associated with the session.

Which of the following OSPF messages carry master-slave relationship information?

For the link state routing protocol, when filter-policy import is used, the filtered link state information cannot be calculated as a route, and its neighbors cannot receive complete link state information.