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 IG
Answer: B,E
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