3.2 Describe Traffic Engineering 350-501 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A network engineer is troubleshooting why an OSPF-based MPLS TE deployment is not computing constraint-based paths. The OSPF adjacencies are up, and the mpls traffic-eng tunnels command is configured on all interfaces. The engineer notices that OSPF is not advertising the TE link parameters. Which configuration is most likely missing on the OSPF routers?

   • AThe mpls traffic-eng tunnels command under the OSPF process
   • BThe traffic-eng command under the OSPF router process
   • CThe capability opaque command under the OSPF process
   • DThe mpls traffic-eng router-id command under the OSPF process
   Reveal Solution Discussion Select an answer first
2. 12application · medium

   A service provider is deploying MPLS TE across a core network that currently runs IS-IS as the IGP. The network team needs the IGP to advertise link bandwidth, reservable bandwidth, and TE metric information so that RSVP-TE can compute constraint-based paths. The team has already enabled MPLS TE globally on all routers. Which additional configuration step is required to ensure the TE information is flooded throughout the IS-IS domain?

   • AEnable the traffic-engineering command under the IS-IS routing process on every router
   • BConfigure a loopback interface with the mpls te router-id command
   • CConfigure the mpls traffic-eng tunnels command under each interface
   • DEnable OSPF opaque LSA support on all core routers
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   What is the role of admission control in RSVP-TE?

   • AIt selects the path for the LSP
   • BIt maintains the TE database
   • CIt authenticates RSVP messages
   • DIt determines whether a link has enough resources to satisfy a reservation request
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   Which failure types does MPLS TE FRR protect against?

   • AOnly link failures
   • BOnly node failures
   • COnly bandwidth congestion
   • DLink failures and node failures
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   What is the purpose of the RSVP Resv message in MPLS TE tunnel establishment?

   • AIt tears down the LSP when no longer needed
   • BIt requests path information from the egress
   • CIt advertises TE link state information to neighbors
   • DIt reserves resources and propagates the reservation upstream toward the ingress
   Reveal Solution Discussion Select an answer first