JNCIA-Junos: Juniper Networks Certified Associate – Junos (2024) — Question 59

Which component is considered part of the data plane?

Answer options

• A. the Packet Forwarding Engine
• B. the fan tray
• C. the power supply
• D. the Routing Engine

Correct answer: A

Explanation

The Packet Forwarding Engine is responsible for the actual forwarding of packets and is therefore part of the data plane. In contrast, the fan tray and power supply are hardware components that support the device, but do not participate in data forwarding. The Routing Engine handles routing decisions and control plane functions, not data plane activities.