A campus fabric uses EVPN all-active multihoming. The network team notices that traffic from a specific server to the fabric is consistently using only one of the two links, even though both links are active. What is the most likely reason for this imbalance?

The ESI is configured incorrectly on one leaf

The access switch is not sending traffic to both leaves

The traffic is a single flow, and per-flow load balancing keeps it on one link

The designated forwarder is handling all traffic

In an EVPN multihoming setup, the designated forwarder (DF) election process uses a deterministic algorithm based on the ESI and the list of candidate leaf switches. If a new leaf switch is added to the multihomed segment, what happens to the DF election?

The DF election re-runs, and the new leaf may become the DF, potentially disrupting BUM traffic

The new leaf is automatically the DF because it has the highest priority

The existing DF remains the DF until it fails

The DF election is not affected by adding a new leaf

A campus network has an access switch dual-homed to two leaf switches. The access switch connects to a legacy device that does not support LACP or any form of link aggregation. The network team wants to use EVPN multihoming to provide redundancy. Which mode should they choose?

All-active mode, because it provides the highest bandwidth

Single-active mode with a unique ESI per link, because it allows both links to forward

All-active mode with a single ESI, because it simplifies configuration

Single-active mode, because it provides redundancy without requiring the access switch to load-balance

What mechanism does EVPN use to detect a link failure in a multihomed Ethernet segment?

BGP session failure or withdrawal of the Ethernet Segment route

Ethernet OAM (Operations, Administration, and Maintenance)

Spanning Tree Protocol (STP) topology change notification

Two leaf switches are connected to the same access switch via two separate links. The administrator wants to configure EVPN multihoming so that the two links are treated as a single logical segment. Which configuration element ensures this?

Assigning different ESI values to each leaf interface

Enabling LACP on both leaf interfaces

Configuring the same IP address on both leaf interfaces

Assigning the same ESI value to both leaf interfaces facing the access switch

Juniper NetworksCertified Specialist, Mist AI Wired (JNCIS-MistAI)

Domain 4Objective 1

EVPN Multihoming JN0-460 Practice Questions (Page 3)

Part of the Campus Fabric Architecture domain, which makes up ~23% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 1–2 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

8concepts

Questions 11–15

11expert · hard
A campus fabric uses EVPN all-active multihoming. The network team notices that traffic from a specific server to the fabric is consistently using only one of the two links, even though both links are active. What is the most likely reason for this imbalance?
Select an answer first
12expert · hard
In an EVPN multihoming setup, the designated forwarder (DF) election process uses a deterministic algorithm based on the ESI and the list of candidate leaf switches. If a new leaf switch is added to the multihomed segment, what happens to the DF election?
Select an answer first
13application · medium
A campus network has an access switch dual-homed to two leaf switches. The access switch connects to a legacy device that does not support LACP or any form of link aggregation. The network team wants to use EVPN multihoming to provide redundancy. Which mode should they choose?
Select an answer first
14foundation · easy
What mechanism does EVPN use to detect a link failure in a multihomed Ethernet segment?
Select an answer first
15application · medium
Two leaf switches are connected to the same access switch via two separate links. The administrator wants to configure EVPN multihoming so that the two links are treated as a single logical segment. Which configuration element ensures this?
Select an answer first

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