Which extension headers are supported by IPv6 packets?() *

By default, it takes at least 30s for the port status in the STP protocol to change from Disable D. to Forwarding status. ()

On an interface that uses PPP as the data link layer protocol, you can configure a static route by specifying the next hop address or outgoing interface. ()

Which NAT can convert multiple private network addresses into one public network address to access the public network at the same time

As shown in the figure, host A and host B want to implement inter-VLAN communication through single-arm routing. What configuration should be done under the G0/0/1.1 interface of RTA?()(Single-choice question)