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300-410 Practice Question: Consider the following partial EIGRP…
Consider the following partial EIGRP configuration on router R1:
router eigrp 100 network 10.0.0.0 network 192.168.1.0
summary-address 10.0.0.0 255.255.255.0 5
What is the effect of the 'summary-address 10.0.0.0 255.255.255.0 5' command?
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
✓
It creates a summary route 10.0.0.0/24 with an administrative distance of 5, advertised out all EIGRP-enabled interfaces.
The 'summary-address' command in EIGRP creates a summary route and advertises it out all interfaces enabled for EIGRP. The administrative distance value (5) is optional and sets the distance for the summary route.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It creates a summary route 10.0.0.0/24 with an administrative distance of 5, advertised out all EIGRP-enabled interfaces.
Why this is correct
Correct. The summary-address command creates a summary route and the optional distance value sets the administrative distance for that summary.
- ✗
It creates a summary route 10.0.0.0/24 and sets the metric to 5.
Why it's wrong here
Incorrect. The value 5 is the administrative distance, not the metric.
- ✗
It creates a summary route 10.0.0.0/24 and suppresses more specific routes with a metric of 5.
Why it's wrong here
Incorrect. The value does not affect metric suppression.
- ✗
It creates a summary route 10.0.0.0/24 with a tag of 5.
Why it's wrong here
Incorrect. The value is administrative distance, not a tag.
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
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.