VLAN-based classification methods are common

The following figure shows a routing table. When this router receives a packet with a destination IP address of
9.1.1.1, the router forwards the packet based on the route 9.1.0.0/16 because the matched bit number in this route is the largest.

Which of the following statements about Ethernet sub-interfaces is/are true?

The following description of the Router ID in OSPF is incorrect (). (multiple choice)

Routers work in the OSI Reference Model