Cisco
352-001 · Question #573
352-001 Question #573: Real Exam Question with Answer & Explanation
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Layer 3 Control Plane
Question
Which native mechanism does OSPF use to prevent loops in MPLS VPNs?
Options
- ACE devices that run OSPF set the DN bit toward the PE router
- BPE devices that run OSPF clear the DN bit toward the CE router
- CCE devices that run OSPF clear the DN bit toward the PE router
- DCreation of PE to PE OSPF sham link across the MPLS-created super backbone
- EPE routers verify OSPF domain IDs used by CE OSPF processes
- FPE devices that run OSPF set the DN bit toward the CE router
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Topics
#OSPF#MPLS VPN#DN bit#loop prevention