350-501 Architecture Practice Question
A service provider needs to offer L3VPN services with customer isolation. Which technology is used to maintain separate routing tables for different customers on a single PE router?
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
✓
VRF
VRF (Virtual Routing and Forwarding) instances provide separate routing tables per customer, ensuring isolation in L3VPN.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VLAN
Why it's wrong here
VLANs provide Layer 2 isolation.
- ✗
Route distinguisher (RD)
Why it's wrong here
RD is used to make routes unique in MP-BGP, not for separate routing tables.
- ✓
VRF
Why this is correct
VRF creates separate routing tables.
- ✗
MPLS labels
Why it's wrong here
MPLS labels are used for forwarding, not routing table separation.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 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 350-501 exam.