Which of the following authentication methods is password authentication? (single selection).

The following describes user authentication Which ones are correct? (multiple selection).

The Pv6 multicast address range is FE80::/10

Which of the following can be used to block C&C attacks? (multiple selection).

There are many firewall security policies in the data center network, and the administrator enables the policy backup acceleration function, and the source address matching conditions of the security policy are modified It can be effective immediately.