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Nokia 4A0-D03 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Center Interconnect (DCI) | - Redundancy and high availability strategies - L2 and L3 DCI design patterns - EVPN-based interconnect solutions |
| EVPN and VXLAN Data Center Fabric | - EVPN control plane fundamentals - VXLAN data plane and encapsulation - EVPN route types and MAC/IP advertisement |
| Operations, Troubleshooting and Best Practices | - Network optimization and scaling considerations - Monitoring SR Linux and EVPN environments - Troubleshooting BGP EVPN and VXLAN issues |
| SR Linux Architecture and Fundamentals | - SR Linux system architecture and components - Network operating system concepts and containerized routing functions - Configuration and operational models |
| BGP and Routing in Data Center Environments | - BGP EVPN address families - Route reflection and scaling design - Interoperability between routing domains |
Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:
1. Consider the exhibit.
dcgw10 is a Nokia 7750SR and is used as the integrated gateway.
Which of the following is NOT configured in VPLS 100 on dcgw10?
A) A VXLAN instance with the VNI for the VPLS.
B) A BGP instance with two unique route targets.
C) The BGP instance bound to the MPLS tunnels toward dcgw20.
D) The EVI to be used by the VPLS.
2. Consider the exhibit.
Based upon the information in the screen captures, which of the following statements is FALSE?
A) Leaf-1 will not generate any EVPN route-type 5 updates for IP-VRF-100.
B) The IRB interface will snoop all ARP and GARP messages received on IRB sub-interface 100.100.
C) Leaf-1 will advertise EVPN route-type 2 updates with host IP and MAC information for MAC-VRF100.
D) The ARP cache for ip-vrf 100 is only required to contain host prefixes for the local subnets.
3. Consider the exhibit.
Which of the following statements about the configuration and operation of this setup is TRUE?
A) The host will be required to be configured with a LAG.
B) The Ethernet segment ES-1 will be associated to the ports that connect to the host.
C) The MAC-VRF on Leaf3 will need to be configured with ECMP to be able to load balance between Leaf1 and Leaf2.
D) The MAC-VRF on Leaf1 and Leaf2 is configured with multi-homing-mode all-active.
4. 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) Leaf2
B) Leaf3
C) Leaf4
D) Leaf1
5. A host is connected to multiple PEs through multi-homing.
Which of the following is NOT a function of the EVPN route-type 4 route?
A) Allows the other PEs to discover which PEs are connected to the same Ethernet segment.
B) Identifies the redundancy mode of the Ethernet segment.
C) Triggers the election of a designated forwarder.
D) Identifies the type of algorithm to be used in the election process.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: D |




