Describe the Operation of Symmetric IRB SONIC-DEPLOY Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is a key advantage of symmetric IRB over asymmetric IRB?

   • AIt uses a centralized gateway for all routing decisions
   • BIt provides better scalability because each VTEP only needs to know the VNIs for locally attached subnets
   • CIt eliminates the need for a Layer 3 VNI
   • DIt requires only the ingress VTEP to have the destination subnet's VNI configured
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   How is the Layer 3 VNI associated with a VRF in symmetric IRB?

   • AThe Layer 3 VNI is mapped to a VLAN, not a VRF
   • BAll VRFs share the same Layer 3 VNI
   • CEach VRF is mapped to a unique Layer 3 VNI
   • DThe VRF is mapped to a Layer 2 VNI
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   What is the role of the egress VTEP in symmetric IRB when it receives VXLAN-encapsulated inter-subnet traffic?

   • AIt re-encapsulates the packet and sends it to another VTEP
   • BIt decapsulates the VXLAN packet and bridges the inner frame to the destination host
   • CIt performs another Layer 3 routing decision before forwarding
   • DIt drops the packet if the destination MAC is unknown
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   What is the purpose of the Layer 3 VNI in symmetric IRB?

   • AIt is used only for broadcast, unknown-unicast, and multicast (BUM) traffic
   • BIt replaces the need for a VRF in the VXLAN fabric
   • CIt carries the routed traffic between VTEPs across the VXLAN tunnel
   • DIt is used to identify the physical underlay network
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   What does the term 'anycast gateway' refer to in the context of symmetric IRB?

   • AA gateway that uses multicast to reach all hosts
   • BA gateway MAC and IP that is the same on all VTEPs in the fabric
   • CA gateway that is dynamically assigned by DHCP
   • DA gateway that is only active on one VTEP at a time
   Reveal Solution Discussion Select an answer first