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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 |
| Layer 2 EVPN Services | 25% | - EVPN Route Types 1–4 - Anycast Gateway and IRB - Multi-homing and Ethernet Segments |
| Data Center Interconnect (DCI) Solutions | 25% | - Interoperability with Nokia 7750 SR - BGP route policies and route reflectors - Gateway-less EVPN DCI |
Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:
1. Which EVPN route-type (RT) is used in multi-homing scenarios to support aliasing and fast convergence?
A) RT-2 MAC/IP Advertisement
B) RT-4 Ethernet Segment
C) RT-3 Inclusive Multicast Ethernet Tag
D) RT-1 Ethernet Auto-Discovery
2. Which of the following statements about a distributed Layer 2 EVPN is FALSE?
A) When a host connected to a Layer 2 EVPN responds to an ARP request, it sends an ARP reply to the local leaf.
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) The local leaf generates an EVPN route type 2 and sends it to all of its configured BGP EVPN neighbors.
3. Consider the exhibit.
Which of the following statements about the proxy ARP entry for the neighbor IP 192.168.100.1 is FALSE?
A) All traffic destined to 192.168.100.1 will be discarded for 9 minutes if the state changes to duplicate.
B) The MAC address will be changed to 00:00:00:00:DE:AD if the state changes to duplicate.
C) The traffic will be forwarded to a blackhole if the state changes to duplicate.
D) The state is pending because this MAC address was originally associated with a different IP address.
4. Consider the exhibit.
All IP-VRFs are configured properly and are operational.
Which of the following statements is FALSE?
A) Only the elected DF will advertise the customer IP prefix route to the BGP route reflector.
B) All connected leaf routers will use an AD per ES update to advertise single-active redundancy.
C) The elected DF will use the AD per EVI update to identify itself as primary.
D) One of the connected leaf routers will be elected DF.
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: D | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: C | Question # 5 Answer: D |




