CAR is deployed on PTN equipment. Which of the following descriptions is wrong?

In the current network, which of the following is the most common way of dividing VUNs?

MPLS is located between the data city road layer and the network layer in the TCP/IP protocol stack, and is used to provide services to the IP layer, and at the same time, it gets the business from the mallet road layer.

When creating a static tunnel, you need to specify the interface of the next hop. Which is the displayed address of the next hop?

How many bits does the VLAN ID occupy in the Ethernet frame format marked with IEEE 802.1Q?