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mediumDrag & DropObjective-mapped
350-401 Practice Question: Drag and drop the steps of OSPFv3 IPv6 neighbor…
Drag and drop the steps of OSPFv3 IPv6 neighbor adjacency formation into the correct order, from first to last.
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Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
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✓
Send Hello packets on IPv6 link
OSPFv3 neighbor formation begins with the router sending Hello packets on the link. The neighbor receives the Hello and replies with its own Hello, including the router ID. Both routers then exchange Database Description packets to summarize their LSDB. Link State Request packets are sent for missing LSAs, and Link State Update packets provide the requested LSAs. Finally, Link State Acknowledgment packets confirm receipt, completing the adjacency.
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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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Variation 1. Drag and drop the steps of OSPFv3 IPv6 neighbor adjacency formation into the correct order, from first to last.
medium- ✓ A.Router sends Hello with its router ID
- ✓ B.Neighbor seen in Hello, state becomes 2-Way
- ✓ C.Master/slave negotiation in ExStart
- ✓ D.Exchange DBD packets describing LSDB
- ✓ E.Send LSR, receive LSU, become Full
Why A: OSPFv3 neighbor formation follows the same state machine as OSPFv2: Down, Init, 2-Way, ExStart, Exchange, Loading, Full. The steps reflect the key actions at each state.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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