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300-410 Practice Question: Which OSPF LSA type is flooded only within the…
Which OSPF LSA type is flooded only within the originating area and is used for loop prevention by describing the topology of the area?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Type 1 LSA (Router LSA)
Type 1 Router LSAs describe the router's links and are flooded only within the area. They provide topology information for loop prevention within the area.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Type 1 LSA (Router LSA)
Why this is correct
Correct. Router LSAs are area-scoped and describe the router's interfaces and neighbors.
- ✗
Type 2 LSA (Network LSA)
Why it's wrong here
Incorrect. Network LSAs are also area-scoped but describe multi-access networks, not individual routers.
- ✗
Type 3 LSA (Summary LSA)
Why it's wrong here
Incorrect. Summary LSAs are flooded between areas, not confined to a single area.
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Type 4 LSA (ASBR Summary LSA)
Why it's wrong here
Incorrect. ASBR Summary LSAs are flooded between areas to advertise ASBR location.
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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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.