Alcatel-Lucent NRS II – Wide Area Network Services — Question 28

When a device receives a labeled packet, which of the following can occur?

Answer options

• A. The packet can only be forwarded as an unlabeled packet.
• B. The packet can be forwarded as a labeled or unlabeled packet, depending on the received label value.
• C. The packet can be forwarded as a labeled or unlabeled packet, depending on the destination IP address in the payload
• D. The packet can only be forwarded as a labeled packet.

Correct answer: B

Explanation

The correct answer is B because a device can choose to forward the labeled packet based on the label value it receives, allowing for flexibility in handling. Options A and D are incorrect as they limit the forwarding to one type only, while option C incorrectly suggests that the destination IP address in the payload determines the packet's forwarding type.