Which of the following is not a foundation of traditional IP routing?
- Regardless of protocol, routers always forward packets according to the IP destination address only (except for using PBR).
- Route lookups are performed on every router.
- Routing is performed by assigning a label to an IP destination.
- Routing protocols are used on all devices, to distribute routing information.
Explanation: Traditional IP routing is based on three foundations: (1) using routing protocols on all devices, (2) forwarding based on destination IP addresses (except for PBR), and (3) performing lookups on every router. Assigning labels to destinations is the fundamental characteristic of MPLS, not traditional IP routing.
Related exam: Checkpoint Exam: MPLS and VPN Technologies
