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Nokia 4A0-D03 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| SR Linux and EVPN Fundamentals | 25% | - EVPN control plane and MP-BGP - VXLAN encapsulation and underlay - SR Linux architecture and CLI |
| Layer 3 EVPN Services | 25% | - VRF integration and route targets - EVPN Route Type 5 - Symmetric and asymmetric routing |
| Data Center Interconnect (DCI) Solutions | 25% | - BGP route policies and route reflectors - Gateway-less EVPN DCI - Interoperability with Nokia 7750 SR |
| Layer 2 EVPN Services | 25% | - Multi-homing and Ethernet Segments - EVPN Route Types 1–4 - Anycast Gateway and IRB |
Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:
1. Which of the following statements about utilizing VXLAN for the data plane in the data center is FALSE?
A) VXLAN was developed to support EVPN networks in the data center.
B) It allows the creation of a Layer 2 overlay network that can span the entire data center.
C) It has the capability to isolate up to 16 million different overlays.
D) It may use ECMP to provide efficient utilization of the underlay interfaces within the data center.
2. 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 IP addresses of the leaf routers need to be re-distributed into the WAN.
C) The EVPN overlay is transparently carried over the WAN network.
D) The leaf routers are able to establish a full mesh of VXLAN tunnels across the WAN.
3. 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-2 IP-VRF consults the ARP table to learn Host-1 MAC address.
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-1 forwards the data for mac-vrf-2 towards Leaf-2 with a VNI of 2.
4. 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) The local leaf learns the source MAC address from the Ethernet frame and populates it into its MAC forwarding table.
D) When a host connected to a Layer 2 EVPN responds to an ARP request, it sends an ARP reply to the local leaf.
5. Which of the following statements about an integrated routing and bridging (IRB) interface is FALSE?
A) The IRB sub-interfaces can be configured with access control lists.
B) The IRB sub-interface must have at least one IP address.
C) An IRB interface is used to logically interconnect a MAC-VRF to an IP-VRF on a PE.
D) IP-VRFs and MAC-VRFs can have multiple IRB interfaces.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: D |




