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CCNA 200-301 v1.1 IP connectivity Runs in your browser · no setup Preview · not independently reviewed

Restore an OSPF adjacency

Compare router settings, identify mismatches, and select the minimum correction.

Estimated12 min
DifficultyAdvanced
Points9
Scenario brief

R1 and R2 share Ethernet segment 10.10.12.0/30. Interfaces are up/up and can ping each other, but no OSPF neighbor relationship forms.

Content record

Preview · not independently reviewed

Mapped to Cisco 200-301 objectives · Internal validation 2026-08-12 · Available as preview practice, but a named independent subject-matter expert has not yet verified the question and answer key.

Community review →
3.4.aNeighbor adjacencies. 3.4Configure and verify single area OSPFv2.
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Method: Mapped to CCNA v1.1 single-area OSPFv2 objectives; adjacency requirements and IOS syntax reviewed.

Current-profile check: 2026-08-12 · Next review due 2027-02-08

01

Inspect the evidence

Use only the information provided to complete the tasks.

R1 — show ip ospf interface g0/1

code
Internet Address 10.10.12.1/30, Area 0
Process ID 10, Router ID 1.1.1.1, Network Type BROADCAST
Timer intervals configured, Hello 10, Dead 40
Authentication key-chain OSPF-KEYS

R2 — show ip ospf interface g0/1

code
Internet Address 10.10.12.2/30, Area 1
Process ID 20, Router ID 2.2.2.2, Network Type BROADCAST
Timer intervals configured, Hello 10, Dead 40
Authentication key-chain OSPF-KEYS
02

Complete the response

Partial credit is available for matching, ordering, and multi-select tasks.

01
single choice

Which observed difference prevents the adjacency?

2 pts
Need a hint?

Restate the exact outcome or failure the prompt asks about before comparing choices.

Show another hint

Eliminate choices that solve a nearby problem, change more than requested, or do not fit the evidence.

02
command

In R2 interface configuration mode, enter the command that places G0/1 in area 0 for OSPF process 20.

3 pts

Whitespace and capitalization are ignored when grading.

Need a hint?

Break the request into three parts: the action, the target, and the required constraint or verification.

Show another hint

Check the tool and subcommand first, then add only the flags, values, and paths the prompt requires.

03
ordering

Order these OSPF neighbor states from earliest to fully adjacent.

4 pts

Drag the rows or use the arrow buttons to reorder.

  1. 1 Full
  2. 2 ExStart
  3. 3 Init
  4. 4 2-Way
Need a hint?

Identify the prerequisite that must happen first and the verification or documentation that belongs last.

Show another hint

For the middle steps, ask what must already be true before each action can safely happen.

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