This 350-501 practice question tests your understanding of architecture. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
PE1#show ip bgp vpnv4 vrf Customer-A 10.10.10.0/24
BGP routing table entry for 10.10.10.0/24, version 6
Paths: (2 available, best #2, table Customer-A)
Advertised to update-groups:
1
Refresh Epoch 2
Local
65000 65001
10.1.1.1 (metric 20) from 10.1.1.1 (192.168.1.1)
Origin IGP, metric 0, localpref 100, valid, internal, best
Extended Community: RT:100:100
mpls labels in/out vpn-label:24000
rx pathid: 0, tx pathid: 0x0
Path #2: (not installed because of route-target mismatch?)
Not advertised to any peer
PE1#show run | section vrf Customer-A
vrf Customer-A
rd 100:1
route-target export 100:100
route-target import 200:200
!
Based on the exhibit, why is the route 10.10.10.0/24 from remote PE not installed in the VRF Customer-A on PE1?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The VRF imports route-target 200:200, but the route has RT 100:100
Option B is correct: The route has RT 100:100, but VRF Customer-A imports RT 200:200. Thus, the route is not imported. Option A is wrong because the localpref is 100, which is default and not an issue. Option C is wrong because the RD mismatch is between VRFs, but RD does not affect import; RT does. Option D is wrong because label allocation is working fine (vpn-label:24000).
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 localpref is too low (100)
Why it's wrong here
Localpref of 100 is default and fine.
✓
The VRF imports route-target 200:200, but the route has RT 100:100
Why this is correct
Route-target import filter must match the route's RT for installation.
Related concept
Read the scenario before looking for a memorised answer.
✗
The MPLS label allocation failed on the remote PE
Why it's wrong here
Label 24000 is present, so allocation succeeded.
✗
The route distinguisher on the VRF (100:1) does not match the remote RD
Why it's wrong here
RD does not need to match; only RT matters for import.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 350-501 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which 350-501 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Architecture — This question tests Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The VRF imports route-target 200:200, but the route has RT 100:100 — Option B is correct: The route has RT 100:100, but VRF Customer-A imports RT 200:200. Thus, the route is not imported. Option A is wrong because the localpref is 100, which is default and not an issue. Option C is wrong because the RD mismatch is between VRFs, but RD does not affect import; RT does. Option D is wrong because label allocation is working fine (vpn-label:24000).
What should I do if I get this 350-501 question wrong?
Identify which 350-501 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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