Which statement describes exception traffic?

Exception traffic must be sent to the Routing Engine (RE) for special processing, not the Packet Forwarding Engine (PFE), which handles normal forwarding traffic.

This describes multicast or broadcast traffic, not the defining characteristic of exception traffic, which relates to its processing path rather than its egress behavior.

Exception traffic consists of packets that cannot be forwarded directly by the Packet Forwarding Engine (PFE) and require processing by the Routing Engine (RE) or control plane. This traffic is rate-limited on the internal link to prevent a Denial of Service (DoS) attack from overwhelming the RE's CPU resources.

Exception traffic, often critical for router operations (e.g., routing protocols), is typically prioritized to ensure the control plane remains functional, not processed after forwarding traffic, especially during congestion.