How is a VLAN mapped to a VXLAN Network Identifier (VNI) in a VXLAN deployment?

The mapping is done via DHCP options

The VLAN ID is directly used as the VNI

The mapping is done automatically by the underlay network

The VLAN is mapped to a VNI using a configuration on the VTEP

What is the purpose of an IRB interface in an EVPN-VXLAN network?

To provide routing between different VNIs

To provide a gateway for the underlay network

To provide a loopback interface for BGP

To provide encapsulation for VXLAN packets

Which fields are part of the VXLAN header?

Source and destination IP addresses

VXLAN Network Identifier (VNI) and reserved fields

Source and destination MAC addresses

What is the primary purpose of VXLAN in an EVPN network?

To provide encryption for data in transit between switches

To replace the need for IP routing in the data center

To provide a Layer 2 overlay that extends VLANs across an IP underlay network

To eliminate the need for MAC address learning in the network

A network engineer is monitoring VXLAN traffic on a VTEP and observes a frame with an unknown destination MAC. The VTEP needs to forward this frame to other VTEPs in the same VNI. How does the VTEP handle this BUM (Broadcast, Unknown Unicast, Multicast) traffic in an EVPN-VXLAN environment?

The VTEP uses ingress replication, sending a copy of the frame to each remote VTEP that is part of the same VNI.

The VTEP sends the frame to the spine, which replicates it to all other VTEPs.

The VTEP sends the frame to the default gateway for routing.

The VTEP drops the frame because the destination MAC is unknown.

Juniper NetworksCertified Professional, Enterprise Routing and Switching (JNCIP-ENT)

Domain 8Objective 2

VXLAN JN0-650 Practice Questions (Page 2)

Part of the EVPN 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

9concepts

Questions 6–10

6foundation · easy
How is a VLAN mapped to a VXLAN Network Identifier (VNI) in a VXLAN deployment?
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7foundation · easy
What is the purpose of an IRB interface in an EVPN-VXLAN network?
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8foundation · easy
Which fields are part of the VXLAN header?
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9foundation · easy
What is the primary purpose of VXLAN in an EVPN network?
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10application · medium
A network engineer is monitoring VXLAN traffic on a VTEP and observes a frame with an unknown destination MAC. The VTEP needs to forward this frame to other VTEPs in the same VNI. How does the VTEP handle this BUM (Broadcast, Unknown Unicast, Multicast) traffic in an EVPN-VXLAN environment?
Select an answer first

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