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300-410 Practice Question: Which TWO statements about the behavior of…
Which TWO statements about the behavior of administrative distance in Cisco IOS are correct? (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
✓
The default administrative distance for an EIGRP summary route is 5.
Administrative distance (AD) is a trustworthiness metric used to select the best route among multiple routing protocols. A lower AD is preferred. The default AD for EIGRP summary routes is 5, which is lower than the default AD for OSPF (110). The distance command can be applied to a routing process to change the AD for all routes learned via that protocol, but it does not affect connected or static routes unless explicitly configured. The show ip route command displays the AD of each route, and the AD value is used to break ties when multiple protocols provide routes to the same destination.
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 default administrative distance for an EIGRP summary route is 5.
Why this is correct
Correct. EIGRP summary routes have a default AD of 5, which is lower than the AD of any dynamic routing protocol, ensuring they are preferred.
- ✗
The default administrative distance for OSPF is 90.
Why it's wrong here
Incorrect. The default AD for OSPF is 110, not 90. 90 is the default AD for EIGRP (internal).
- ✗
The distance command applied under a routing protocol can modify the AD for all routes, including connected and static routes, learned via that protocol.
Why it's wrong here
Incorrect. The distance command only affects routes learned via the routing protocol it is configured under. Connected and static routes have their own AD values and are not modified by this command.
- ✓
The show ip route command displays the administrative distance of each route in the routing table.
Why this is correct
Correct. The show ip route output includes the AD value as the first number in the route entry (e.g., 'O 10.0.0.0/8 [110/2]').
- ✗
When two different routing protocols provide routes to the same destination, the route with the higher administrative distance is installed in the routing table.
Why it's wrong here
Incorrect. The route with the lower administrative distance is preferred and installed in the routing table. A higher AD indicates less trustworthiness.
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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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.