A service provider creates a network design that runs MPLS in its WAN backbone using OSPF as the IGP routing protocol. What would be two effects of additionally implementing MPLS-TE? (Choose two.)
A) MPLS-TE is required to reroute traffic within less than 1 second in case of a link failure inside the backbone.
B) MPLS-TE is required to route different MPLS QoS service classes through different paths.
C) MPLS-TE and OSPF cannot be used together inside one MPLS network.
D) MPLS-TE cannot use OSPF for the traffic path calculation.
E) MPLS-TE is required to create backup paths independently from the IGP.

Question

Quizplus · Accepted Answer

MPLS-TE allows for traffic engineering by routing different MPLS QoS service classes through different paths (B). It also enables the creation of backup paths independently from the IGP, providing more control over traffic flows and redundancy (E).

A Service Provider Creates a Network Design That Runs MPLS