The switch receives a unicast data frame. If the destination MAC of the data frame can be found in the MAC table, the data frame will definitely be forwarded from the port corresponding to the MAC.

In the network shown in the figure below, host A is not configured with a gateway, and host B has an ARP cache of the gateway. Use the command ping 11.0.12.1 on host A. Which of the following statements is correct?

When a router forwards a datagram, every time it passes through a data link layer, the data link layer needs to be re-encapsulated.

On AC, you can manually specify the source address or source interface for creating a CAPWAP tunnel.

It is known that there are two entries in the routing table of a certain router as shown in the figure. If the router wants to forward the message with the destination address of 9.1.4.5, which of the following statements is correct?
Destination/Mask Protocol Pre Cost Nexthop Interface
9.0.0.0/8 OSPF 10 50 1.1.1.1 Serial0
9.1.0.0/16 IS-IS 15 100 2.2.2.2 Ethernet0