The MAC address table of a certain switch is shown in the figure. If the switch receives a data frame with a destination MIAC of 5489-9885-18a8 from port Eth0/0/2, which of the following statements is correct?

On Huawei routers, what is the default value of the OSPF protocol internal routing priority?

The MPLS label header is encapsulated between the data link layer header and the network layer header of the message.

Which of the following statements about router-on-a-stick are correct? (Multiple Choice)

Which type of message is used by network devices running SNMPv 1 protocol to actively send alarm information?