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350-401 Practice Question: The default OSPF hello interval on an Ethernet…
What is the default OSPF hello interval on an Ethernet link?
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
✓
10 seconds
OSPF uses different hello intervals depending on the network type. On broadcast and point-to-point networks (like Ethernet), the default hello interval is 10 seconds.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
10 seconds
Why this is correct
This is the standard default for Ethernet and other broadcast networks.
- ✗
30 seconds
Why it's wrong here
30 seconds is the default for NBMA networks, not Ethernet.
- ✗
40 seconds
Why it's wrong here
40 seconds is not a standard OSPF hello interval.
- ✗
5 seconds
Why it's wrong here
5 seconds is used for some point-to-point links but not the default for Ethernet.
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 350-401 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 350-401 exam.