Symmetric Routing JN0-683 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   In an EVPN-VXLAN fabric with symmetric routing, a host in VLAN 10 sends traffic to a host in VLAN 20 on a different VTEP. The ingress VTEP has an IRB for VLAN 10 and VLAN 20. The egress VTEP has an IRB for VLAN 20 only. How does the ingress VTEP know to send the packet to the egress VTEP?

   • AIt uses the VXLAN tunnel endpoint IP address of the egress VTEP.
   • BIt uses the anycast gateway MAC address to forward the packet.
   • CIt uses the IP route to the destination host advertised via the Layer 3 VNI.
   • DIt uses the MAC address of the destination host advertised via the Layer 2 VNI.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   What is the purpose of a Layer 3 VNI in symmetric routing?

   • AIt is used to route traffic between different EVPN instances.
   • BIt provides a separate VNI for management traffic.
   • CIt carries intra-subnet broadcast traffic within a VLAN.
   • DIt carries inter-subnet routed traffic between VTEPs.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   What is the primary benefit of symmetric routing in an EVPN-VXLAN fabric?

   • AIt ensures that traffic takes the same path in both directions, simplifying troubleshooting and policy enforcement.
   • BIt eliminates the need for any Layer 3 gateway in the fabric.
   • CIt reduces the number of VLANs required in the fabric.
   • DIt allows the use of a single VNI for both Layer 2 and Layer 3 traffic.
   Reveal Solution Discussion Select an answer first
5. 9expert · hard

   A network architect is evaluating symmetric vs. asymmetric routing for a large EVPN-VXLAN fabric with many tenants. The architect is concerned about the scalability of the control plane and the number of IRB interfaces. Which statement accurately compares the two approaches?

   • ASymmetric routing reduces the number of IRB interfaces per VTEP compared to asymmetric routing, but it requires a Layer 3 VNI and associated VRF configuration.
   • BSymmetric routing requires more IRB interfaces per VTEP because every VTEP must have IRBs for all subnets.
   • CAsymmetric routing is more scalable because it does not require a Layer 3 VNI.
   • DAsymmetric routing requires fewer IRB interfaces per VTEP because each VTEP only needs IRBs for locally attached subnets.
   Reveal Solution Discussion Select an answer first
6. 10expert · hard

   A network engineer is designing an EVPN-VXLAN fabric for a multi-tenant data center. The design must support inter-subnet traffic between tenants while minimizing the number of VTEPs that need to host IRB interfaces for every tenant subnet. The engineer is comparing symmetric and asymmetric routing. Which advantage does symmetric routing offer over asymmetric routing in this scenario?

   • ASymmetric routing requires every VTEP to have an IRB interface for every tenant subnet, simplifying configuration.
   • BSymmetric routing eliminates the need for IRB interfaces entirely by using the Layer 3 VNI for all inter-subnet traffic.
   • CSymmetric routing requires only the ingress VTEP to have an IRB interface for the source subnet, reducing the number of IRB interfaces needed.
   • DSymmetric routing uses a Layer 3 VNI to carry routed traffic, so only the VTEPs that need to route for a tenant need the corresponding IRB interfaces, reducing the number of IRBs per VTEP.
   Reveal Solution Discussion Select an answer first