In a MPLS VPN network, two-layer MPLS labels are added into data packets before they are transmitted over the public network. Which of the following statements regarding data packet processing are true? (Multiple Choice)
- The penultimate hop removes the outer label before forwarding the data packet to a peer PE.
- The IP data packet received by the peer PE does not carry labels.
- The penultimate hop removes the outer label if the outer label in the data packet is explicit null label 3.
- The peer PE sends the data packet to the correct VPN based on the inner label.
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