An engineer is troubleshooting a VXLAN deployment where hosts on the same VNI but different VTEPs cannot communicate. The underlay IP connectivity between VTEPs is verified as working. What is the most likely cause of the issue?

The underlay is using OSPF instead of BGP.

The VTEPs are using different UDP source ports.

The underlay MTU is too small, causing VXLAN packets to be dropped.

The VNI is not configured on the hosts.

A network team is deploying VXLAN in a data center and wants to avoid relying on multicast in the underlay for VTEP discovery and MAC learning. They prefer a control plane that provides deterministic MAC route advertisement. Which approach should they choose?

Use head-end replication with a multicast group per VNI.

Enable OSPF on the underlay to propagate MAC addresses.

Configure static VXLAN tunnels between all VTEPs.

Use BGP EVPN as the control plane for VXLAN.

What information does a VTEP register in the control plane?

Its physical switch model and firmware version

Its routing table and next-hop information

A VTEP receives a unicast VXLAN packet from a remote VTEP. The inner destination MAC is known and is associated with a local port. What does the VTEP do with the frame?

It re-encapsulates the packet and sends it to the destination VTEP.

It routes the frame based on the inner IP address.

It drops the frame because unicast is not supported in VXLAN.

It decapsulates the packet and forwards the inner Ethernet frame out the local port associated with the destination MAC.

A VTEP receives a broadcast frame from a local host in VNI 100. The VTEP is configured with head-end replication. How does the VTEP handle this broadcast frame?

It sends the frame to a multicast group that all VTEPs in VNI 100 have joined.

It replicates the frame and sends a unicast VXLAN-encapsulated copy to each remote VTEP that is a member of VNI 100.

It forwards the frame only to the local ports in VLAN 100.

It drops the frame because broadcast is not supported in VXLAN.

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

Domain 5Objective 1

VXLAN Fundamentals JN0-460 Practice Questions (Page 1)

Part of the Campus EVPN-VXLAN domain, which makes up ~11% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–2 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

8concepts

Questions 1–5

1expert · medium
An engineer is troubleshooting a VXLAN deployment where hosts on the same VNI but different VTEPs cannot communicate. The underlay IP connectivity between VTEPs is verified as working. What is the most likely cause of the issue?
Select an answer first
2application · medium
A network team is deploying VXLAN in a data center and wants to avoid relying on multicast in the underlay for VTEP discovery and MAC learning. They prefer a control plane that provides deterministic MAC route advertisement. Which approach should they choose?
Select an answer first
3foundation · easy
What information does a VTEP register in the control plane?
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4expert · medium
A VTEP receives a unicast VXLAN packet from a remote VTEP. The inner destination MAC is known and is associated with a local port. What does the VTEP do with the frame?
Select an answer first
5application · medium
A VTEP receives a broadcast frame from a local host in VNI 100. The VTEP is configured with head-end replication. How does the VTEP handle this broadcast frame?
Select an answer first

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