350-501 Networking Practice Question
Exhibit
show bgp vpnv4 unicast vrf CUSTOMER 10.1.1.0/24
BGP routing table entry for 10.1.1.0/24, version 5
Paths: (1 available, best #1)
Network: 10.1.1.0/24
Path: 100
from 192.168.1.1 (192.168.1.1)
Origin IGP, metric 0, localpref 100, weight 32768, valid, external, best
Extended Community: RT:200:1Refer to the exhibit. The VRF CUSTOMER is configured with route-target import 100:1. Why is this route not installed in the VRF table?
⚠ Common exam trap
Cisco often tests the distinction between route distinguisher (RD) and route-target (RT) — candidates confuse RD uniqueness with RT import/export matching, leading them to pick 'Route distinguisher missing' when the actual issue is a route-target mismatch.
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
✓
Route target mismatch.
B is correct because the VRF CUSTOMER is configured with route-target import 100:1, but the route in question carries a different route-target value (e.g., 100:2). For a route to be installed into a VRF table, the route-target extended community attached to the route must match at least one of the import route-targets configured on the VRF. A mismatch prevents the route from being imported, even if other conditions are satisfied.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VRF not properly configured.
Why it's wrong here
The VRF is configured, but import target mismatch prevents installation.
- ✓
Route target mismatch.
Why this is correct
The route carries RT:200:1, but the VRF imports only RT:100:1.
- ✗
Route distinguisher missing.
Why it's wrong here
RD is present (implicitly in the route); it does not affect import filtering.
- ✗
Next-hop unreachable.
Why it's wrong here
There is no indication that the next-hop is unreachable.
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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.