Free 350-501 Exam Braindumps
Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) Questions 153–160 (page: 21)

Updated On: 28-Apr-2026
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Refer to the exhibit. When implementing an LDP protocol, an engineer experienced an issue between two directly connected routers and noticed that no LDP neighbor exists for 1.1.1.1.

Which factor should be the reason for this situation?

  1. LDP needs to be enabled on the R2 loopback interface.
  2. LDP needs to be enabled on the R2 physical interface.
  3. R2 does not see any hellos from R1.
  4. R2 sees the wrong type of hellos from R1.

Answer(s): B



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Refer to the exhibit. Which statement about this configuration is true?

  1. It requires a dynamic Cisco MPLS TE path to be configured for the tunnel to run.
  2. It requires OSPF to also be running to have optimized Cisco MPLS TE tunnels.
  3. It is the configuration for the head-end router of a Cisco MPLS TE tunnel with segment routing.
  4. It requires an explicit Cisco MPLS TE path to be configured for the tunnel to run.

Answer(s): C



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Which statement about segment routing prefix segments is true?

  1. It is the longest path to a node.
  2. It is linked to an adjacency SID that is globally unique within the router.
  3. It is linked to a prefix SID that is globally unique within segment routing domain.
  4. It requires using EIGRP to operate.

Answer(s): C


Reference:

https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segment-routing/configuration/ guide/b-seg-routing-cg-asr9k/b-seg-routing-cg-asr9k_chapter_010.pdf



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Refer to the exhibit. After implementing a new design for the network, a technician reviews the pictures CLI output as part of the MOP.

Which two elements describe what the technician can ascertain from the ImpNull output? (Choose two.)

  1. Ultimate Hop Popping is in use for the prefix displayed.
  2. Penultimate Hop Popping is in use for the prefix displayed.
  3. Label 0 is used for the prefix displayed, but will not be part of the MPLS label stack for packets destined for 192.168.10.10.
  4. Label 3 is in use for the prefix displayed and will be part of the MPLS label stack for packets destined for 192.168.10.10.
  5. Label 0 is used for the prefix displayed and will be part of the MPLS label stack for packets destined for 192.168.10.10.

Answer(s): B,D



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A router RP is configured to perform MPLS LDP graceful restart.

Which three steps are included when the RP sends an LDP initialization message to a neighbor to establish an LDP session? (Choose three.)

  1. Learn from Neighbor (N) flag, set to 1
  2. Recovery Time field
  3. Type-9 LSA
  4. Reconnect Timeout field
  5. Graceful restart capability in OPEN message
  6. Learn from Network (L) flag, set to 1

Answer(s): B,D,F


Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ha/configuration/xe-16-8/mp-ha-xe-16-8- book/nsf-sso-mpls-ldp-and-ldp-graceful-restart.html



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Refer to the exhibit. Which configuration must be applied to each of the four routers on the network to reduce LDP LIB size and advertise label bindings for the /32 loopback IP space only?





Answer(s): C



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DRAG DROP (Drag and Drop is not supported)

Drag and drop the OSPF and IS-IS Cisco MPLS TE extensions from the left to their functional descriptions on the right.

Select and Place:

  1. See Explanation section for answer.

Answer(s): A

Explanation:



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DRAG DROP (Drag and Drop is not supported)

Drag and drop the methods of Cisco MPLS TE tunnel traffic assignment from the left onto their characteristics on the right.

Select and Place:

  1. See Explanation section for answer.

Answer(s): A

Explanation:



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