EVPN-signaled VXLAN for DCI JN0-683 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   What is the primary purpose of EVPN multihoming in a DCI scenario?

   • ATo reduce the MTU requirement on the underlay.
   • BTo enable the use of multiple VNIs for the same VLAN.
   • CTo allow multiple VTEPs to share the same IP address.
   • DTo provide redundancy and load balancing when a site is connected to the DCI through multiple links or VTEPs.
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2. 22expert · hard

   A company is interconnecting two data centers using EVPN-VXLAN. They have a stretched VLAN 100 for a legacy application. They also have a new application in VLAN 200 that needs to communicate with VLAN 100 across the DCI. The network team wants to use EVPN Type-5 routes for inter-subnet routing. What is the most efficient way to achieve this?

   • AConfigure an IRB interface for VLAN 100 and VLAN 200 on the VTEPs and advertise the IRB IP addresses via Type-5 routes.
   • BUse a single IRB interface for both VLANs and rely on the VNI to differentiate the traffic.
   • CConfigure a Layer 2 gateway to route between the VLANs.
   • DAdvertise the VLAN 100 and VLAN 200 subnets via Type-2 routes.
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4. 23application · medium

   A network administrator is setting up EVPN-VXLAN DCI between two sites. They have configured the BGP sessions and the VNI mappings. However, MAC addresses learned on Site A are not being learned on Site B. The administrator has verified that the BGP EVPN sessions are up and that Type-2 routes are being sent. What is the most likely cause of the issue?

   • AThe route target configured on Site A for the VNI does not match the route target configured on Site B.
   • BThe VTEPs are using different VNI values for the same VLAN.
   • CThe BGP session is using the wrong AS number.
   • DThe MTU on the underlay is too small.
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5. 24foundation · easy

   When troubleshooting an EVPN-VXLAN DCI issue where hosts in different sites cannot communicate, what is the first thing to check?

   • AVTEP reachability in the underlay.
   • BThe MTU on the access ports.
   • CThe BGP route reflector configuration.
   • DThe VLAN-to-VNI mapping on the hosts.
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6. 25foundation · easy

   In an EVPN-VXLAN DCI with a Layer 3 gateway, how is inter-VLAN routing typically implemented?

   • AUsing a firewall to route between VLANs.
   • BUsing a separate router connected to each VLAN via a physical interface.
   • CUsing IRB (Integrated Routing and Bridging) interfaces on the VTEP, with a default gateway for each VLAN.
   • DUsing VXLAN routing without any Layer 2 bridging.
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