mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router R2: R2# show…
A network engineer runs the following command on Router R2:
R2# show ip route 192.168.10.0
Routing entry for 192.168.10.0/24 Known via "ospf 1", distance 110, metric 20 Redistributing via ospf 1 Last update from 10.0.0.1 on GigabitEthernet0/1, 00:00:10 ago Routing Descriptor Blocks:
* 10.0.0.1, from 10.0.0.1, 00:00:10 ago, via GigabitEthernet0/1
Route metric is 20, traffic share count is 1
Based on this output, what is the most likely origin of this route?
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
✓
The route is an OSPF external route, likely redistributed.
The metric of 20 is the default metric for OSPF external routes of type E2 (external type 2). The administrative distance of 110 is the default for OSPF routes. This combination indicates the route was redistributed into OSPF from another protocol.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The route is an OSPF intra-area route.
Why it's wrong here
Intra-area routes have a metric based on cost, not a fixed value like 20. The metric 20 is typical for external routes.
- ✗
The route is an OSPF inter-area route.
Why it's wrong here
Inter-area routes have a metric that reflects the area border router's cost, not a fixed 20.
- ✓
The route is an OSPF external route, likely redistributed.
Why this is correct
The metric of 20 is the default for OSPF external type 2 routes, indicating redistribution.
- ✗
The route is an OSPF NSSA external route.
Why it's wrong here
NSSA external routes have a metric that is not necessarily 20, and they are type N1 or N2. The output does not show NSSA-specific flags.
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.
Go deeper
Related to this question
About these practice questions
Courseiva writes every 300-410 question from scratch — 1,966 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
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.