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Nokia 4A0-D03 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Data Center Interconnect (DCI) | - EVPN-based interconnect solutions - Redundancy and high availability strategies - L2 and L3 DCI design patterns |
| 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: BGP and Routing in Data Center Environments | - BGP EVPN address families - Interoperability between routing domains - Route reflection and scaling design |
| Topic 4: EVPN and VXLAN Data Center Fabric | - VXLAN data plane and encapsulation - EVPN route types and MAC/IP advertisement - EVPN control plane fundamentals |
| Topic 5: Operations, Troubleshooting and Best Practices | - Troubleshooting BGP EVPN and VXLAN issues - Network optimization and scaling considerations - Monitoring SR Linux and EVPN environments |
Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:
Question 1
Which of the following statements about a BGP route target is FALSE?
A. It is advertised with every EVPN route update.
B. It is defined in MP-BGP to allow for overlapping MAC addresses from multiple tenants.
C. The route-target is a BGP extended community.
D. It identifies the EVPN instance in the control plane.
Question 2
Which of the following statements about utilizing asymmetric routing in an L3 EVPN network is FALSE?
A. If a host interface's has two IP addresses, it must send out two separate EVPN route-type 2 updates for the MAC-VRF.
B. All the MAC-VRFs connected to the L3 EVPN network must exist on each PE.
C. Each PE must have a full ARP table for all of the hosts in the L3 EVPN network.
D. The ingress and egress PE routers will perform both MAC and IP forwarding.
Question 3
Which of the following statements about utilizing VXLAN for the data plane in the data center is FALSE?
A. It allows the creation of a Layer 2 overlay network that can span the entire data center.
B. It has the capability to isolate up to 16 million different overlays.
C. VXLAN was developed to support EVPN networks in the data center.
D. It may use ECMP to provide efficient utilization of the underlay interfaces within the data center.
Question 4
Leaf routers are configured to support Layer 2 multi-homing all-active mode.
Which of the following statements is FALSE?
A. If VLAN tagging is to be used, then it must be enabled on the LAG interface.
B. If using LACP, the system-id-mac must uniquely identify each leaf router connected to the host.
C. The LAG interface must then be associated with the Ethernet segment.
D. A LAG must be configured on the participating leaf routers.
Question 5
Which of the following statements about the gateway-less data center interconnect solution is FALSE?
A. The data center border leaf and gateway can use either eBGP or static routes to exchange routing information.
B. All of the data centers leaf routers must be reachable over the WAN network.
C. The route reflectors must be reachable between different data centers.
D. It provides a clear demarcation for security between the border leaf and gateway.
Solutions:
| Question 1 Answer: D | Question 2 Answer: B | Question 3 Answer: C | Question 4 Answer: B | Question 5 Answer: D |



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