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Nokia 4A0-D03 Exam Syllabus Topics:

Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:

1. Consider the exhibit.

All three of the leafs have a MP-BGP EVPN session to the route-reflector Spine-1. Leaf-1, Leaf-2 and Leaf-3 have existing instances of an L2 EVPN named MAC VRF-1. Host-1 has just sent its first Ethernet frame into MAC VRF-1 on Leaf-1.
Which of the following steps is FALSE?

A) The route-reflector forwards the EVPN update to Leaf-2 and Leaf-3.
B) Leaf-2 and Leaf-3 import the EVPN update based upon the route target.
C) Leaf-1 generates an EVPN route-type 5 update with Host-1's MAC address and sends it to the route reflector.
D) Leaf-1 populates Host-1's MAC address learnt on the local interface to its MAC table.

2. Consider the exhibit.

Host-2 is sending data to Host-1. The network is designed to use asymmetric routing.
Which of the following statements about the operation of the data plane is TRUE?

A) Leaf-1 forwards the data for mac-vrf-2 towards Leaf-2 with a VNI of 2.
B) Leaf-2 forwards the data for mac-vrf-2 towards the IP-VRF using its IRB interface.
C) Leaf-2 does a MAC look-up using mac-vrf-1 and forwards the data towards Host-1.
D) Leaf-2 IP-VRF consults the ARP table to learn Host-1 MAC address.

3. Consider the exhibit.

Which of the following statements is FALSE?

A) The MAC address 00:00:00:00:00:01 was learned through the data plane.
B) The MAC address associated to the vxlan-interface will not age out.
C) The VXLAN network identifier configured for this MAC-VRF is 100.
D) The remote host's IP address is 100.0.2.3.

4. Which of the following statements describes the function or operation of the integrated gateway-based data center interconnect solution?

A) The route reflectors in the different data centers must be able to reach each other.
B) All the data center leaf routers must be reachable over the WAN network.
C) The data center gateway and the WAN PE functions are performed on a single router.
D) The VXLAN tunnels are required between the leaf routers in the different data centers.

5. 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) 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.
C) 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.
D) The remote peers generate a gratuitous ARP towards their directly connected hosts to announce the learned IP/MAC mapping information.

Solutions: