VXLAN Data Plane JN0-683 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the purpose of the UDP destination port 4789 in a VXLAN-encapsulated packet?

   • AIt is used for load balancing across the underlay network.
   • BIt specifies the VNI used for the tenant traffic.
   • CIt indicates the inner Ethernet frame's EtherType.
   • DIt identifies the VXLAN protocol to the receiving VTEP.
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2. 7application · medium

   An engineer is configuring a VXLAN fabric and needs to ensure that when a host sends an ARP request for a destination on a different VTEP, the request is delivered to the correct remote VTEP. The underlay does not support multicast. Which configuration approach should the engineer use?

   • AEnable head-end replication on the ingress VTEP, listing the remote VTEPs as replication targets.
   • BEnable IGMP snooping on the VTEPs to forward the ARP request to the correct remote VTEP.
   • CConfigure the underlay to route the ARP request to the destination VTEP using a static route.
   • DConfigure the egress VTEP to proxy ARP for all remote hosts.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   What role does the VNI play in a VTEP's forwarding decision for a received VXLAN packet?

   • AIt determines the inner destination MAC address.
   • BIt determines which local VLAN the inner frame should be forwarded to after decapsulation.
   • CIt determines the underlay routing path.
   • DIt determines the outer destination IP address for the packet.
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5. 9foundation · easy

   What is the correct sequence of events when a host sends a unicast frame to a remote host in a VXLAN fabric?

   • AIngress VTEP floods the frame to all VTEPs, and the egress VTEP decapsulates and forwards.
   • BEgress VTEP encapsulates the frame, underlay routes it to the ingress VTEP, ingress VTEP decapsulates and forwards.
   • CIngress VTEP encapsulates the frame, underlay routes it to the egress VTEP, egress VTEP decapsulates and forwards to the destination host.
   • DUnderlay router encapsulates the frame, routes it to the egress VTEP, which forwards it to the destination host.
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6. 10foundation · easy

   What is the primary function of an ingress VTEP in a VXLAN data plane?

   • AIt encapsulates tenant Ethernet frames with a VXLAN header and forwards them to the underlay.
   • BIt decapsulates VXLAN packets and delivers the inner frames to local tenants.
   • CIt maintains the underlay routing table for all VTEPs.
   • DIt routes traffic between VNIs without encapsulation.
   Reveal Solution Discussion Select an answer first