JN0-106: Junos, Associate (JNCIA-Junos) CertificationDemo

By Juniper · Question Mode

QuestionQ4

Junos OS Fundamentals

Which two statements accurately describe the way Junos OS performs control and forwarding functions?

Choose two
  • A The Packet Forwarding Engine (PFE) forwards packets based on forwarding tables received from the Routing Engine.
  • B Exception traffic is always dropped by the Packet Forwarding Engine without being inspected.
  • C Transit traffic is processed by the Routing Engine to ensure high-speed packet forwarding.
  • D The Routing Engine (RE) is responsible for maintaining routing tables and running routing protocols.
Explanation

The Routing Engine maintains routing tables and runs routing protocols. It installs active routes into the forwarding table, and Junos OS synchronizes that forwarding information to the Packet Forwarding Engine, which forwards packets. Transit traffic is therefore handled by the PFE rather than the Routing Engine, and exception traffic is not always dropped.

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