Cisco 350-501 Exam Questions
Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) (Page 19 )

Updated On: 30-May-2026
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DRAG DROP (Drag and Drop is not supported)



Refer to the exhibit. An engineer wants to determine which paths are best, second best, third best, and fourth best. Drag and drop the peer addresses on the left to the corresponding BGP best-path selection order on the right.

Select and Place:

  1. See Explanation section for answer.

Answer(s): A

Explanation:



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Refer to the exhibit. While troubleshooting the OSPF adjacency between routers R1 and R2, an engineer noticed that both routers are stuck in the EXCHANGE/EXSTART state. What should the engineer fix to solve the ongoing issue?

  1. match OSPF network types
  2. match IPv4 addresses
  3. match MTU values
  4. match OSPF areas

Answer(s): C



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Refer to the exhibit. A network engineer is implementing a standard customer route-policy on router ASBR1 with these requirements:
It must accept only customer-assigned prefixes.

It must preserve customer-advertised BGP communities.

It must set the local-preference to 110 for all prefixes.

It must attach the ORIGINATION-PE and LOCAL-CITY communities to all accepted prefixes.

Which route policy must the engineer implement on ASBR1 to satisfy the requirements?





Answer(s): D



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What are two factors to consider when implementing NSR High Availability on an MPLS PE router? (Choose two.)

  1. It requires all PE-CE sessions to support NSR
  2. It requires routing protocol extensions
  3. It consumes more memory and CPU resources than NSF
  4. It operates normally without NSR support on the PE peers
  5. It cannot sync state information across redundant RPs

Answer(s): C,D



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Refer to the exhibit. A network operator needs to shut down interface Gi0/0/0/2 for maintenance. What occurs to the interface states of Gi0/0/0/0 and Gi0/0/0/1?

  1. Gi0/0/0/1 and Gi0/0/0/0 become active
  2. Gi0/0/0/1 and Gi0/0/0/0 remain standby
  3. Gi0/0/0/0 becomes active; Gi0/0/0/1 remains standby
  4. Gi0/0/0/1 becomes active; Gi0/0/0/0 remains standby

Answer(s): D



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Refer to the exhibit. When the Link Aggregation configuration router is running on Cisco IOS XR Software, which LACP interface configuration is needed to add the interface to the bundle?





Answer(s): B



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A network engineer must enable the helper router to terminate the OSPF graceful restart process if it detects any changes in the LSA.

Which command enables this feature?

  1. nsf ietf helper disable
  2. nsf cisco helper disable
  3. nsf ietf helper strict-lsa-checking
  4. nsf cisco enforce global

Answer(s): C



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Refer to the exhibit. A network engineer is implementing an OSPF configuration. Based on the output, which statement is true?

  1. OSPFv3 does not run for IPv4 on FastEthernet0/0 until IPv6 routing is enabled on the router and IPv6 is enabled on interface FastEthernet0/0.
  2. In the ospfv3 1 area 1 ipv4 command, area 0 must be configured instead of area 1.
  3. OSPFv3 cannot be configured for IPv4; OSPFv3 works only for IPv6.
  4. "IPv6 routing not enabled" is just an informational message and OSPFv3 runs for IPv4 on interface FastEthernet0/0 anyway.

Answer(s): A



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