The figure shows the LSP information of R1 and R3 on an MPLS network. An administrator runs the ping -a 1.1.1.1 3.3.3.3 command on R1. Given this, which of the following statements is true?
A.
The Echo Request packet received by R2 carries label 1025, and the Echo Reply packet received by R2 does not carry any label.
B.
The Echo Request packet received by R2 carries label 1025, and the Echo Reply packet received by R2 carries label 1024.
C.
Both the Echo Request and Echo Reply packets received by R2 do not carry any label.
D.
The Echo Request packet received by R2 does not carry any label, and the Echo Reply packet received by R2 carries label 1024.
Chosen Answer:
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