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300-410 Practice Question: The default OSPF network type for a tunnel…
What is the default OSPF network type for a tunnel interface configured with 'tunnel mode gre multipoint'?
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
✓
Broadcast
By default, a multipoint GRE tunnel interface uses the broadcast network type, which requires DR/BDR elections.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Broadcast
Why this is correct
The default OSPF network type for multipoint GRE tunnels is broadcast.
- ✗
Point-to-multipoint
Why it's wrong here
This is not the default; it must be configured manually.
- ✗
Point-to-point
Why it's wrong here
Point-to-point is used for non-multipoint tunnels.
- ✗
Non-broadcast
Why it's wrong here
Non-broadcast is not the default for multipoint GRE.
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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JA
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.