Which of the Following Statements Regarding the Transit Node in the MPLS

Multiple Choice

Which of the following statements regarding the transit node in the MPLS forwarding process is correct?

A) Queries the corresponding the FIB table based on the MPLS label to obtain the token.
B) Obtains the corresponding NHLFE entry based on the token in the FIB table.
C) Checks the NHLFE entry to obtain the outbound interface, next hop, outgoing label, and label operation type.
D) If the label value is 1, the transit node directly pops out the label, processes the EXP and TTL fields, and then performs IP forwarding or forwarding by the inner label.
E) If the label value is higher than or equal to 15, the transit node replaces the old label of the MPLS packet with a new label, processes the EXP and TTL fields, and sends the MPLS packet to the next hop.