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300-410 Practice Question: Which TWO configuration steps are required to…
Which TWO configuration steps are required to successfully redistribute OSPF routes into EIGRP on a Cisco router? (Choose TWO.)
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
✓
Enter EIGRP router configuration mode using the 'router eigrp <as-number>' command.
To redistribute OSPF into EIGRP, you must enter EIGRP configuration mode and use the redistribute command. Additionally, you must set a seed metric for EIGRP because EIGRP does not have a default metric for redistributed routes. Option A is correct because you need to enter EIGRP router configuration. Option D is correct because you must set a metric (e.g., bandwidth, delay) for the redistributed routes. Option B is incorrect because you do not need to explicitly match routes in OSPF; you can redistribute all OSPF routes. Option C is incorrect because the redistribute command is under EIGRP, not OSPF. Option E is incorrect because the default-information originate command is for OSPF to inject a default route, not for redistribution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enter EIGRP router configuration mode using the 'router eigrp <as-number>' command.
Why this is correct
Correct: You must be in EIGRP configuration mode to issue the redistribute command.
- ✗
Configure a route-map under OSPF to match OSPF routes for redistribution.
Why it's wrong here
Incorrect: A route-map is optional, not required, for redistribution.
- ✗
Use the 'redistribute eigrp <as-number>' command under OSPF router configuration mode.
Why it's wrong here
Incorrect: This would redistribute EIGRP into OSPF, not OSPF into EIGRP.
- ✓
Set a seed metric for EIGRP using the 'default-metric' command or specify metric in the redistribute command.
Why this is correct
Correct: EIGRP requires a seed metric; otherwise, routes are not advertised.
- ✗
Issue the 'default-information originate' command under OSPF to advertise redistributed routes.
Why it's wrong here
Incorrect: This command is for originating a default route in OSPF, not for redistribution.
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
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