350-501 Architecture Practice Question
A service provider is implementing EVPN to support multi-homing for a customer site. Which EVPN attribute ensures that only one of the PEs forwards traffic for a given Ethernet segment?
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
✓
Designated Forwarder (DF) election
The ESI (Ethernet Segment Identifier) and designated forwarder election ensure single active forwarding per segment. DF election is used for multi-homing.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Designated Forwarder (DF) election
Why this is correct
DF election ensures only one PE forwards traffic for a given ESI in all-active multi-homing.
- ✗
Label block
Why it's wrong here
Label block is used for label allocation in EVPN.
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Route Target
Why it's wrong here
Route Target controls route distribution, not multi-homing.
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Ethernet Tag ID
Why it's wrong here
Ethernet Tag identifies a broadcast domain.
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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.