mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command to troubleshoot a…
A network engineer runs the following command to troubleshoot a Device Access Control issue:
R1# show ip ospf database router 10.1.1.2
OSPF Router with ID (10.1.1.1) (Process ID 1)
Router Link States (Area 0)
LS age: 150 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 10.1.1.2 Advertising Router: 10.1.1.2 LS Seq Number: 80000002 Checksum: 0x1234 Length: 48 Number of Links: 2
Link connected to: a Transit Network (Link ID) Designated Router address: 10.1.1.2 (Link Data) Router Interface address: 10.1.1.2 Number of TOS metrics: 0 TOS 0 Metrics: 10
Link connected to: a Stub Network (Link ID) Network/subnet number: 192.168.1.0 (Link Data) Network Mask: 255.255.255.0 Number of TOS metrics: 0 TOS 0 Metrics: 10
What does this output indicate?
⚠ Common exam trap
Cisco often tests the ability to interpret the 'Link connected to' fields in a Router LSA, where candidates may mistakenly think a transit link implies a point-to-point connection or that a stub link indicates a misconfiguration, rather than recognizing both are normal for a DR on a multi-access network.
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 router 10.1.1.2 is advertising two links: one to a transit network and one to a stub network, both with cost 10.
The output shows two links in the Router LSA from router 10.1.1.2: a transit network link (to a DR) and a stub network link (to a subnet). Both links have a metric of 10, confirming that router 10.1.1.2 is advertising exactly two links with equal cost. This matches option A exactly.
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 router 10.1.1.2 is advertising two links: one to a transit network and one to a stub network, both with cost 10.
Why this is correct
The LSA shows exactly that: a transit link (to a DR) and a stub link (192.168.1.0/24), both with metric 10.
- ✗
The router 10.1.1.2 is the DR for the transit network 10.1.1.0/24.
Why it's wrong here
The LSA shows the DR address is 10.1.1.2, but that does not necessarily mean 10.1.1.2 is the DR; it could be the interface address of the DR.
- ✗
The router 10.1.1.2 is advertising a single link to a point-to-point network.
Why it's wrong here
The LSA shows two links, not one, and they are transit and stub, not point-to-point.
- ✗
The router 10.1.1.2 has a misconfigured network type because it shows both transit and stub links.
Why it's wrong here
It is normal for a router to advertise both transit and stub links in its Router LSA; this is not a misconfiguration.
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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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.