Symmetric Routing JN0-683 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   In symmetric routing, what is the role of the ingress VTEP when a host sends inter-subnet traffic?

   • AIt sends the packet to a centralized gateway for routing decisions.
   • BIt performs a Layer 3 lookup, routes the packet to the destination subnet, and encapsulates it with the Layer 3 VNI.
   • CIt forwards the frame as a Layer 2 broadcast to all VTEPs in the fabric.
   • DIt decapsulates the VXLAN header and forwards the packet directly to the destination host.
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2. 12application · medium

   An engineer is configuring symmetric routing for a new tenant in an EVPN-VXLAN fabric. The tenant has two subnets: 10.1.1.0/24 and 10.1.2.0/24. The engineer has created a VRF for the tenant and assigned a Layer 3 VNI. What else must be configured for symmetric routing to work?

   • AA default route must be configured in the VRF to forward inter-subnet traffic.
   • BThe Layer 2 VNI must be associated with the VRF to enable inter-subnet routing.
   • CThe Layer 3 VNI must be associated with the VRF on every VTEP that routes for the tenant.
   • DIRB interfaces for each subnet must be configured on every VTEP in the fabric.
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4. 13foundation · easy

   What is a key difference between symmetric and asymmetric routing in EVPN-VXLAN?

   • AIn symmetric routing, routing is performed at a centralized gateway; in asymmetric, it is distributed.
   • BIn symmetric routing, the egress VTEP performs routing; in asymmetric, the ingress VTEP performs routing.
   • CIn symmetric routing, the ingress VTEP uses the destination's Layer 2 VNI; in asymmetric, it uses the source's Layer 2 VNI.
   • DIn symmetric routing, both VTEPs use the same Layer 3 VNI; in asymmetric routing, only one VTEP performs routing.
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5. 14expert · hard

   A network architect is comparing symmetric and asymmetric routing for a fabric that will host many tenants. The architect is concerned about the number of IRB interfaces and the complexity of VRF configuration. Which approach is more scalable in terms of IRB interfaces?

   • ASymmetric routing, because it requires fewer IRBs per VTEP.
   • BAsymmetric routing, because it requires fewer IRBs per VTEP.
   • CBoth approaches require the same number of IRBs.
   • DNeither approach is scalable for many tenants.
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6. 15application · medium

   A network administrator is explaining symmetric routing to a colleague. The administrator states that symmetric routing ensures consistent forwarding paths for bidirectional traffic. What is the primary benefit of this consistency?

   • AIt simplifies troubleshooting and ensures that stateful services see both directions of traffic.
   • BIt guarantees lower latency for all traffic.
   • CIt reduces the number of VNIs required in the fabric.
   • DIt eliminates the need for IRB interfaces.
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