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Question 1,380 of 1,420
mediumDrag & DropObjective-mapped
350-401 Practice Question: Drag and drop the steps of OSPF virtual link…
Drag and drop the steps of OSPF virtual link configuration across area 0 into the correct order, from first to last.
Answer choices
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Correct answer & explanation
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Ensure transit area has full connectivity
First, ensure the transit area (non-backbone) has full connectivity and at least one ABR. Then, identify the router IDs of the two ABRs that will form the virtual link. On each ABR, configure the virtual link using the 'area transit-area-id virtual-link router-id' command. Verify the virtual link state using 'show ip ospf virtual-links'. Finally, confirm that routes from the backbone area are now reachable across the virtual link.
Visual reference
Quick reference
Routing Protocol Comparison
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
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Last reviewed: Jun 18, 2026
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