VXLAN JN0-650 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is an Ethernet Segment (ES) in EVPN multihoming?

   • AA logical interface on a VTEP
   • BA VXLAN tunnel between two VTEPs
   • CA set of links connecting a CE device to multiple PE devices
   • DA single link connecting a CE to a PE
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2. 17expert · hard

   An enterprise has deployed EVPN-VXLAN in a data center. A host connected to leaf-1 sends a unicast frame to a destination MAC that leaf-1 has not yet learned. The VTEP needs to forward this frame to the correct remote VTEP. Which mechanism ensures the frame reaches the destination without relying on data-plane flooding?

   • ALeaf-1 sends an ARP request to the spine, which responds with the remote VTEP's IP address.
   • BLeaf-1 floods the frame to all VTEPs in the VNI using ingress replication, and the destination host responds.
   • CLeaf-1 consults its EVPN MAC table, which was populated by Type-2 routes received from remote VTEPs via MP-BGP.
   • DLeaf-1 uses the VXLAN VNI to look up the destination in the underlay routing table and forwards to the spine.
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4. 18application · medium

   A data center administrator is configuring VXLAN on a pair of leaf switches. Each leaf will act as a VTEP, and the administrator needs to ensure that traffic from VLAN 100 on leaf-1 is isolated from VLAN 200 on leaf-2, even though both leaves are connected to the same IP fabric. The administrator also wants to avoid manual flooding configuration. What must be configured to achieve this segmentation?

   • AUse different UDP source ports for each VLAN to create separate tunnels.
   • BMap VLAN 100 to VNI 10100 and VLAN 200 to VNI 10200, and enable EVPN to advertise both VNIs via MP-BGP.
   • CMap both VLANs to the same VNI and rely on the IP fabric's ACLs to separate traffic.
   • DConfigure a single VNI for both VLANs and enable head-end replication on the spine switches.
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5. 19application · medium

   A cloud provider is building a new data center fabric and wants to support multiple tenants, each with their own isolated Layer 2 domains. The provider also needs to ensure that MAC address learning is efficient and does not rely on broadcast flooding across the entire fabric. Which technology and control plane combination should the provider choose?

   • AMPLS L2VPN with LDP, where each tenant is assigned a VPLS instance and MAC learning occurs via LDP signaling.
   • BVXLAN with static unicast tunnels, where each tenant is assigned a VNI and MAC learning occurs via head-end replication.
   • CVLAN with MSTP, where each tenant is assigned a VLAN and MAC learning occurs via data-plane flooding.
   • DVXLAN with EVPN, where each tenant is assigned a unique VNI and MAC routes are advertised via MP-BGP.
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6. 20foundation · easy

   Which configuration is required on a Juniper switch to enable VXLAN with EVPN signaling?

   • AConfigure an EVPN instance and a VXLAN encapsulation on the switch
   • BConfigure a GRE tunnel between VTEPs
   • CConfigure an IPsec tunnel between VTEPs
   • DConfigure a VPLS instance with VXLAN encapsulation
   Reveal Solution Discussion Select an answer first