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Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:

1. Which of the following statements about a distributed Layer 2 EVPN is FALSE?

A) The local leaf generates an EVPN route type 2 and sends it to all of its configured BGP EVPN neighbors.
B) The local leaf replicates the ARP reply and sends it to all the leafs in the flooding list for that Layer 2 EVPN.
C) When a host connected to a Layer 2 EVPN responds to an ARP request, it sends an ARP reply to the local leaf.
D) The local leaf learns the source MAC address from the Ethernet frame and populates it into its MAC forwarding table.

2. Consider the exhibit.

All three leafs have an EVPN MP-BGP session with the route reflector in Spine-1. Leaf-2 and Leaf-3 have existing instances of an L2 EVPN named MAC VRF-1. Leaf-1 has just enabled a new instance of MAC VRF-1.
Which of the following steps is NOT taken when this new instance is enabled?

A) Leaf-1 advertises the IMET route in a BGP EVPN update directly to Leaf-2 and Leaf-3.
B) Leaf-2 and Leaf-3 add Leaf-1 to their existing flooding list for BUM traffic.
C) Leaf-2 and Leaf-3 auto-discover the new peer based on the route target in the received IMET route.
D) Leaf-1 generates an IMET route.

3. Consider the exhibit.

Leaf1 and Leaf2 have the Ethernet segment configured to use the default election algorithm while Leaf3 and Leaf4 are configured to use the preference-based algorithm with Leaf3 having the higher preference value. The DF candidate list is the same on all leaf routers.
Which of the following leafs is the DF for mac-vrf103?

A) Leaf4
B) Leaf2
C) Leaf3
D) Leaf1

4. When PEs are connected to an Ethernet segment with at least one active MAC-VRF, which of the following statements about the AD per EVI updates sent by a PE is FALSE?

A) It contains the VNI that is to be used by the remote peers in the data plane.
B) It is used by the remote peers for aliasing.
C) It advertises the multi-homing mode used by the PEs for the Ethernet segment.
D) It contains the route-target so that the update can be imported into the correct MAC-VRF instance.

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

A) The route reflectors must be reachable between different data centers.
B) All of the data centers leaf routers must be reachable over the WAN network.
C) It provides a clear demarcation for security between the border leaf and gateway.
D) The data center border leaf and gateway can use either eBGP or static routes to exchange routing information.

Solutions: