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300-410 Practice Question: Which TWO configuration steps are required to…
Which TWO configuration steps are required to change the administrative distance for routes learned from a specific neighbor in EIGRP? (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
✓
Configure a prefix list to match the routes from the neighbor.
To change the AD for routes from a specific EIGRP neighbor, you must first configure a prefix list to match the routes, then apply it using the distance command in EIGRP router configuration mode. The distance command can specify a different AD for routes matching a prefix list from a specific neighbor.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure a prefix list to match the routes from the neighbor.
Why this is correct
The prefix list is used to identify which routes to match for the distance override.
- ✗
Use the distance eigrp command in router configuration mode.
Why it's wrong here
The distance eigrp command sets the default AD for all internal and external EIGRP routes, not per neighbor.
- ✓
Use the distance command with the neighbor IP address and prefix list.
Why this is correct
The syntax is: distance <ad-value> <source-ip> <wildcard> <prefix-list-name>.
- ✗
Configure an access list to permit the routes from the neighbor.
Why it's wrong here
EIGRP uses prefix lists, not access lists, for the distance command.
- ✗
Use the redistribute command to change the administrative distance.
Why it's wrong here
Redistribution does not change the AD of routes from a specific neighbor.
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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