EVPN Multihoming JN0-460 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   In EVPN multihoming, what is the role of the designated forwarder (DF) election process?

   • AIt elects a PE to act as the route reflector for the EVPN instance.
   • BIt determines which PE is responsible for MAC address learning.
   • CIt ensures that only one PE forwards BUM traffic to the multihomed CE, avoiding duplicate frames.
   • DIt selects the PE with the highest IP address to forward all traffic.
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   In Juniper Mist, what is the purpose of configuring an ESI on a switch interface for EVPN multihoming?

   • ATo identify the Ethernet segment that the interface belongs to for multihoming.
   • BTo enable DHCP snooping on the interface.
   • CTo assign a unique IP address to the interface.
   • DTo configure the interface as a trunk port.
   Reveal Solution Discussion Select an answer first
4. 23expert · hard

   A campus fabric uses EVPN single-active multihoming between two leaf switches and an access switch. The access switch sends BUM traffic to both leaves. The designated forwarder (DF) leaf fails. What is the immediate impact on BUM traffic and how is it resolved?

   • AThe access switch stops sending BUM traffic until the failed leaf recovers
   • BBUM traffic is load-balanced across both leaves immediately
   • CBUM traffic is dropped until the DF election completes and the other leaf takes over
   • DBUM traffic is immediately forwarded by the non-DF leaf without any delay
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A network administrator is configuring EVPN multihoming for a pair of leaf switches connected to a common access switch. The access switch sends BUM (broadcast, unknown unicast, and multicast) traffic to both leaves. The administrator wants to ensure that only one leaf forwards BUM traffic to the access switch to prevent duplication. Which mechanism accomplishes this?

   • ASpanning Tree Protocol (STP) root election
   • BESI-based load balancing
   • CDesignated Forwarder (DF) election
   • DMAC address learning
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   How does EVPN multihoming interact with Spanning Tree Protocol (STP) in a campus network?

   • AEVPN multihoming can replace STP in the access layer by using its own loop prevention mechanisms.
   • BEVPN multihoming requires STP to be enabled on all switches to prevent loops.
   • CEVPN multihoming and STP are independent and do not interact.
   • DEVPN multihoming uses STP to elect the designated forwarder.
   Reveal Solution Discussion Select an answer first