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200-301 · Question #858

Which command is used to verify your OSPFv3 neighbor adjacencies?

The correct answer is D. show ipv6 ospf neighbor. This question asks for the specific Cisco IOS command to display OSPFv3 neighbor adjacencies.

Submitted by fernanda_arg· Mar 5, 2026

Question

Which command is used to verify your OSPFv3 neighbor adjacencies?

Options

  • Ashow ospf neighbor
  • Bshow ipv6 brief
  • Cshow ipv6 ospf
  • Dshow ipv6 ospf neighbor

How the community answered

(46 responses)
  • A
    7% (3)
  • B
    2% (1)
  • C
    2% (1)
  • D
    89% (41)

Why each option

This question asks for the specific Cisco IOS command to display OSPFv3 neighbor adjacencies.

Ashow ospf neighbor

The show ospf neighbor command is used for OSPFv2 (IPv4) neighbor adjacencies, not OSPFv3 (IPv6).

Bshow ipv6 brief

The show ipv6 brief command displays a brief summary of IPv6 interfaces and their status, not OSPFv3 neighbor adjacencies.

Cshow ipv6 ospf

The show ipv6 ospf command displays general OSPFv3 process information, such as router ID, area information, and interface details, but not specific neighbor adjacency states.

Dshow ipv6 ospf neighborCorrect

The show ipv6 ospf neighbor command is specifically designed to display the status of OSPFv3 neighbor adjacencies, including their state (e.g., FULL), IP addresses, and interfaces. Since OSPFv3 operates on IPv6, the 'ipv6' keyword is essential, and 'neighbor' targets the adjacency information.

Concept tested: OSPFv3 neighbor verification commands

Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-mt/iro-15-mt-book/iro-ospfv3.html

Topics

#OSPFv3#OSPFv3 verification#IPv6 routing

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