JNCIA-Junos: Juniper Networks Certified Associate – Junos (2024) — Question 52

By default, how does the PFE manage unicast traffic destined for an existing forwarding table entry?

Answer options

• A. It sends the traffic through multiple ports toward its destination.
• B. It sends the traffic through one port toward its destination.
• C. It sends the traffic through the fxp1 interface to the RE.
• D. It sends all traffic to the control plane for further processing.

Correct answer: B

Explanation

The correct answer is B, as the PFE is designed to send unicast traffic through one port for efficiency and to maintain a clear path to its destination. Options A and C are incorrect because they misrepresent the PFE's handling of unicast traffic, and option D is not applicable since unicast traffic does not need to go to the control plane for processing unless specified otherwise.