Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions

Nokia 4A0-D03 Exam - Topic 1 Question 1 Discussion

Posted by Dwight on Jul 18, 2026 at 06:55 PM

Consider the exhibit.

Which of the following statements about the operation of all-active multi-homing is FALSE?

Suggested Answer: B

Comprehensive and Detailed 150 to 250 words of Explanation From [SR Linux EVPN and Data Center Interconnect/Course Guide/topics]:

In an all-active Layer 2 EVPN multi-homing design, the host is normally dual-attached through a LAG to multiple leaf routers that share the same Ethernet Segment Identifier. Leaf1 and Leaf2 both participate in the Ethernet Segment and may receive traffic from the host. For BUM traffic sourced by the host, the host-side hashing can send frames toward either attached leaf. For BUM traffic sent from the EVPN overlay toward the multi-homed segment, DF election controls which PE forwards that replicated traffic toward the local Ethernet Segment to prevent duplicate delivery. The false statement is option B. A remote leaf such as Leaf3 does not simply enable ECMP on the MAC-VRF to load-balance traffic between Leaf1 and Leaf2. EVPN all-active forwarding uses Ethernet Segment discovery, Ethernet A-D routes, aliasing, and split-horizon procedures to determine valid next-hops and prevent loops. ECMP alone is an underlay or routing-table behavior; it is not the MAC-VRF mechanism that authorizes multi-homed L2 forwarding across an Ethernet Segment. Reference: all-active L2 EVPN multi-homing, Ethernet Segment association, DF election, aliasing.


Get Premium 4A0-D03 Questions as Interactive Web-Based Practice Test or PDF Real Exam Format Detailed Explanations Instant Access Get Your Practice Test
12 comments · newest first
BL
Blair 1 month ago
I feel like D could be misleading too, but C stands out more.
KR
Kristofer 2 months ago
I agree, C doesn't make sense. It contradicts the setup.
GA
Gail 2 months ago
I think option C is false. The lag association seems off.
LO
Lorrie 2 months ago
Totally agree with Carin, C) doesn't add up!
MA
Matthew 2 months ago
Wait, how can Leaf3 load balance if it's not directly connected?
NY
Nydia 2 months ago
D) sounds right to me, the host can choose either leaf.
CA
Carin 2 months ago
I think C) is the false one. The lag association seems off.
LE
Leigha 3 months ago
A) is true, both leaves can forward BUM traffic.
VE
Veronika 3 months ago
I recall that hosts can send BUM traffic to either leaf, so D seems correct. But I’m unsure about the other options.
AL
Alfred 3 months ago
I practiced a similar question where the association of Ethernet segments was key. I think C could be the false one, but I’m not completely confident.
TE
Tequila 3 months ago
I'm not entirely sure, but I feel like the statement about Leaf3 load balancing could be tricky. I need to double-check how ECMP works in this context.
VO
Von 3 months ago
I think I remember that BUM traffic can be forwarded by both Leaf1 and Leaf2, so A might be true.
0/2000 characters

Save Cancel