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Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:

1. Consider the exhibit.

Leaf-1 has received an ARP request from host-1 for host-2. Leaf-1 has added host-1's MAC address in its MAC table and host-1's MAC/IP addresses in its proxy-ARP table.
Which of the following steps is FALSE?

A) Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 0.0.0.0 to the remote peers.
B) The remote peers ignore the EVPN update with the IP address set to 0.0.0.0 and use the update with the IP address set to 192.168.100.1 to populate their MAC forwarding tables.
C) The remote peers generate a gratuitous ARP towards their directly connected hosts to announce the learned IP/MAC mapping information.
D) Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 192.168.100.1 to the remote peers.

2. When providing L3 multi-homing on two or more leaf routers, which of the following is FALSE?

A) In an all-active multi-homing scenario, the DF-election is used to identify the leaf router that is responsible for forwarding BUM traffic to the host.
B) In a single-active multi-homing scenario, the DF-election is used to identify the active leaf router.
C) The Ethernet segment is associated with the next-hop for the 3rd party prefixes.
D) All learned 3rd party prefixes are advertised using EVPN route type 5.

3. Consider the exhibit.

All IP-VRFs are configured properly and are operational.
Which of the following statements is FALSE?

A) All traffic destined to 40.40.40.0/24 will be forwarded through Leaf3 due to the BGP connection to the CE VNF.
B) The AD per EVI update will be used to identify which connected leaf is primary.
C) One of the leaf routers will be elected DF.
D) All connected leaf routers will use single active redundancy.

4. Which of the following statements about the gateway-less data center interconnect solution is FALSE?

A) The data center gateway routers maintain a MP-BGP EVPN peering with the data center route reflector.
B) The leaf routers are able to establish a full mesh of VXLAN tunnels across the WAN.
C) The EVPN overlay is transparently carried over the WAN network.
D) The IP addresses of the leaf routers need to be re-distributed into the WAN.

5. Consider the exhibit.

Which of the following statements about the configuration and operation of this setup is FALSE?

A) The host will forward all BUM traffic toward the DF.
B) The MAC-VRF on Leaf3 will need to be configured with ECMP to be able to load balance between Leaf1 and Leaf2.
C) The Ethernet segment ES-1 is configured with multi-homing-mode all-active.
D) A sub-interface of lag1 is associated to the MAC-VRF on Leaf1 and Leaf2.

Solutions: