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Nokia 4A0-D03 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Operations, Troubleshooting and Best Practices | - Network optimization and scaling considerations - Troubleshooting BGP EVPN and VXLAN issues - Monitoring SR Linux and EVPN environments |
| Topic 2: SR Linux Architecture and Fundamentals | - SR Linux system architecture and components - Configuration and operational models - Network operating system concepts and containerized routing functions |
| Topic 3: Data Center Interconnect (DCI) | - L2 and L3 DCI design patterns - Redundancy and high availability strategies - EVPN-based interconnect solutions |
| Topic 4: BGP and Routing in Data Center Environments | - Interoperability between routing domains - Route reflection and scaling design - BGP EVPN address families |
| Topic 5: EVPN and VXLAN Data Center Fabric | - EVPN control plane fundamentals - VXLAN data plane and encapsulation - EVPN route types and MAC/IP advertisement |
Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:
1. Consider the exhibit.
All IP-VRFs are configured properly and are operational.
Which of the following statements is FALSE?
A) One of the leaf routers will be elected DF.
B) All connected leaf routers will use single active redundancy.
C) The AD per EVI update will be used to identify which connected leaf is primary.
D) All traffic destined to 40.40.40.0/24 will be forwarded through Leaf3 due to the BGP connection to the CE VNF.
2. Consider the exhibit.
The network is going to be designed to use interface-less symmetric routing.
Which of the following statements is TRUE?
A) An instance of each mac-vrf is required on each leaf.
B) The IRB configuration does not require anycast gateway configuration on the ip-vrf.
C) Forwarding information will be exchanged between the PEs using EVPN route-type 2 updates.
D) The ingress PE will perform layer 2 and layer 3 lookups while the egress PE will perform layer 2 lookup.
3. 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) Identifies the type of algorithm to be used in the election process.
B) Triggers the election of a designated forwarder.
C) Identifies the redundancy mode of the Ethernet segment.
D) Allows the other PEs to discover which PEs are connected to the same Ethernet segment.
4. An IRB sub-interface that is being used to interconnect a MAC-VRF to an IP-VRF, is configured with anycast-gw set to true and anycast-gw enabled.
Which of the following statements is FALSE?
A) The same IP address used on this sub-interface can be used by other IRB sub-interfaces on remote PEs participating in the IP-VRF.
B) The last octet of the default virtual MAC assigned to the sub-interface is derived from the last octet of the chassis MAC.
C) The host IP address of the sub-interface appears in the IP-VRF route table along with the prefix for the entire sub-net.
D) Two MAC addresses associated to the sub-interface are shown in the forwarding table of the MAC-VRF that contains the IRB sub-interface.
5. Consider the exhibit.
Which of the following statements about the operation of all-active multi-homing is FALSE?
A) The Ethernet segment on Leaf1 and Leaf2 is associated to lag 1.
B) Leaf3 can load balance traffic between Leaf1 and Leaf2 when ECMP is enabled on the MAC-VRF.
C) The host can forward BUM traffic to either Leaf1 or Leaf2.
D) Both Leaf1 and Leaf2 can forward BUM traffic to the host.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: A | Question # 4 Answer: C | Question # 5 Answer: B |



