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300-410 Practice Question: Which THREE commands can be used to verify and…
Which THREE commands can be used to verify and troubleshoot EIGRP route redistribution issues, specifically when routes are not being redistributed correctly? (Choose THREE.)
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
✓
'show ip route'
Troubleshooting redistribution involves verifying that routes are in the source routing protocol, that the redistribute command is correct, and that metrics are set. 'show ip eigrp topology' shows EIGRP routes, not redistributed routes from other protocols. 'show ip route' shows all routes in the routing table. 'debug eigrp fsm' tracks EIGRP events. 'show ip protocols' shows redistribution configuration. 'ping' verifies reachability but not 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.
- ✗
'show ip eigrp topology'
Why it's wrong here
This command shows only EIGRP-learned routes in the topology table; it does not show routes redistributed into EIGRP from other protocols unless they have been successfully redistributed and are in the topology.
- ✓
'show ip route'
Why this is correct
This command shows the routing table, including routes from all sources. It can verify whether redistributed routes are present and have the correct administrative distance and metric.
- ✓
'debug eigrp fsm'
Why this is correct
This debug command shows EIGRP Finite State Machine events, including route updates and redistribution events, helping to identify if redistribution is occurring and any errors.
- ✓
'show ip protocols'
Why this is correct
This command displays the routing protocol configuration, including redistribution statements, route filters, and administrative distances, allowing verification of redistribution parameters.
- ✗
'ping'
Why it's wrong here
Ping tests end-to-end connectivity but does not provide specific information about redistribution configuration or errors.
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.
Go deeper
Related to this question
Learn chapter
OSPF Route Summarization and Filtering
Key term
Route Redistribution Between Protocols
Route redistribution between protocols is the process of taking routes learned from one routing protocol and injecting them into another routing protocol so that networks using different protocols can communicate.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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