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Question AR072 - Incorrect
#1
Question AR072 for ENARSI should be "PUSH and POP"

Explanation: A label edge router (LER, also known as edge LSR) is a router that operates at the edge of an MPLS network and acts as the entry and exit points for the network. LERs push an MPLS label onto an incoming packet and pop it off an outgoing packet.

Source: https://en.wikipedia.org/wiki/Multiproto..._Switching

The question's existing explanation also supports this.

"A label edge router (LER, also known as edge SR or eLSR) is a router that operates at the edge of an MPLS network and acts as the entry and exit points for the network. LERs push an MPLS label onto an incoming packet and pop it off an outgoing packet"

https://www.cisco.com/c/en/us/td/docs/sw...erview.pdf
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#2
Thank you for your feedback. The answer has been fixed.
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