easyMultiple Choice
300-410 Practice Question: Runs the following command on Router PE3: PE3#…
A network engineer runs the following command on Router PE3:
PE3# show ip vrf interfaces Interface IP-Address VRF Protocol
Gi0/0 10.1.1.1 CUSTOMER_C up Gi0/1 10.2.2.1 CUSTOMER_D up
Based on this output, which statement is correct?
⚠ Common exam trap
300-410 often tests whether candidates over-read command output — the trap is inferring route or configuration state from a command that only shows interface bindings and protocol status.
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
✓
Both interfaces are correctly assigned to VRFs and are operational.
The output shows both Gi0/0 and Gi0/1 assigned to VRFs (CUSTOMER_C and CUSTOMER_D respectively) with the Protocol column reading 'up', which confirms the interfaces are operational and correctly bound to their VRFs. This is the expected healthy state for VRF-lite or MPLS PE interfaces.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Both interfaces are correctly assigned to VRFs and are operational.
Why this is correct
Both interfaces appear in the VRF interface table with unique IP addresses and Protocol status "up", confirming each is bound to its respective VRF (CUSTOMER_C and CUSTOMER_D) and forwarding traffic. This satisfies the stem's requirement that the interfaces are assigned and operational.
- ✗
Interface Gi0/0 is down.
Why it's wrong here
The Protocol column for Gi0/0 reads up, indicating line and protocol are operational. It is tempting because an interface can be administratively down or line-protocol down, but neither state is shown here; the output explicitly reports up for both interfaces.
- ✗
VRF CUSTOMER_C has no routes.
Why it's wrong here
The command displays interface-to-VRF assignment and protocol status only; it does not reveal the VRF routing table, so no conclusion about CUSTOMER_C's routes is possible. It is tempting because route absence is a common VRF fault, but verifying it requires show ip route vrf CUSTOMER_C.
- ✗
The router has no VRF configuration.
Why it's wrong here
The output lists Gi0/0 and Gi0/1 each mapped to a named VRF, which only appears when VRFs are configured and interfaces assigned. It is tempting because a router without VRFs shows no VRF column entries, but here two distinct VRF names are present, proving configuration exists.
Go deeper
Related to this question
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Key term
MPLS Layer 3 VPN
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Key term
LDP Protocol
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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.