350-501 MPLS and Segment Routing Practice Question
Which SRv6 endpoint behavior is used for L3VPN decapsulation and IP forwarding to the destination in a VRF?
⚠ Common exam trap
Cisco often tests the distinction between endpoint behaviors by using similar acronyms (e.g., End.DT2U vs End.DT4) to confuse candidates who may not recall that '2U' refers to Layer 2 unicast and '4' refers to IPv4 VRF forwarding.
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
✓
End.DT4
End.DT4 is the correct SRv6 endpoint behavior for L3VPN decapsulation and IP forwarding to the destination in a VRF. It removes the outer IPv6 header and SRH, then performs a lookup in the specified VRF IPv4 routing table to forward the inner IPv4 packet. This behavior is defined in RFC 8986 and is the direct SRv6 equivalent of the MPLS-based per-VRF label allocation for 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.
- ✗
End.DT2U
Why it's wrong here
Used for L2VPN.
- ✗
End
Why it's wrong here
End is a simple SID that forwards to the next hop.
- ✗
End.X
Why it's wrong here
End.X forwards to a specific adjacency.
- ✓
End.DT4
Why this is correct
Correct. End.DT4 decapsulates and does IPv4 VRF lookup.
Go deeper
Related to this question
About these practice questions
This 350-501 question is part of Courseiva's 971-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.