hardMultiple Choice
350-401 Practice Question: Runs the following command on Router R5: R5# show…
A network engineer runs the following command on Router R5:
R5# show ip route vrf CUSTOMER-A
Routing Table: CUSTOMER-A Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route
Gateway of last resort is 10.1.1.1 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.1.1.0/24 is directly connected, GigabitEthernet0/0 B 10.2.2.0/24 [20/0] via 10.1.1.1, 00:10:20
Based on this output, what can be concluded?
⚠ Common exam trap
Cisco often tests the distinction between eBGP and iBGP by using administrative distance values; the trap here is that candidates may assume any BGP route is from an internal peer without checking the AD value, which for eBGP is 20 and for iBGP is 200.
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 VRF has a default route pointing to 10.1.1.1.
The output shows a VRF routing table with a gateway of last resort set to 10.1.1.1 for network 0.0.0.0, which is a default route. This indicates that the VRF has a default route pointing to 10.1.1.1, making option C correct. The presence of a connected route and a BGP-learned route further confirms the VRF is functional.
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 VRF has no routes and is not functional.
Why it's wrong here
The VRF is functional because the 'show ip route vrf' output contains both a directly connected route and a BGP-learned route. A VRF with no routes would show an empty routing table, but this one has at least two entries, so the VRF can forward traffic for those known prefixes. Therefore, claiming the VRF has no routes and is not functional is incorrect.
- ✗
The route 10.2.2.0/24 is learned via OSPF.
Why it's wrong here
The routing table entry for 10.2.2.0/24 is prefixed with 'B', which in Cisco IOS route codes stands for Border Gateway Protocol, not OSPF. OSPF routes are identified by 'O' for intra-area/inter-area or 'O IA' for inter-area. Since the source is BGP and the administrative distance is 20, this is an external BGP route, further disqualifying OSPF as the learning protocol.
- ✓
The VRF has a default route pointing to 10.1.1.1.
Why this is correct
The VRF routing table shows a 'Gateway of last resort is 10.1.1.1' line, which indicates a default route of 0.0.0.0/0 is installed with next hop 10.1.1.1. This S* route means any destination not matching a more specific prefix will be sent to 10.1.1.1. Thus, the correct statement is that the VRF has a default route pointing to 10.1.1.1.
- ✗
The BGP route is sourced from an internal BGP peer.
Why it's wrong here
The BGP route's administrative distance is 20, which Cisco uses for routes learned from an external BGP (eBGP) peer; iBGP routes default to an administrative distance of 200. Therefore, this route cannot be sourced from an internal BGP peer. Additionally, an iBGP route would typically show the next-hop as an internal address, but the key discriminator here is the AD value.
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
Learn chapter
EIGRP: Basics and Advanced Configuration
Key term
Virtual Routing and Forwarding
Virtual Routing and Forwarding (VRF) is a technology that allows a single physical router to operate like multiple independent routers by keeping separate routing tables and forwarding decisions for each instance.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 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 350-401 exam.