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Nokia 4A0-D03 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Data Center Interconnect (DCI) | - Redundancy and high availability strategies - L2 and L3 DCI design patterns - EVPN-based interconnect solutions |
| Topic 2: SR Linux Architecture and Fundamentals | - Configuration and operational models - SR Linux system architecture and components - Network operating system concepts and containerized routing functions |
| Topic 3: EVPN and VXLAN Data Center Fabric | - EVPN route types and MAC/IP advertisement - VXLAN data plane and encapsulation - EVPN control plane fundamentals |
| Topic 4: Operations, Troubleshooting and Best Practices | - Troubleshooting BGP EVPN and VXLAN issues - Network optimization and scaling considerations - Monitoring SR Linux and EVPN environments |
| Topic 5: 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:
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. Triggers the election of a designated forwarder.
- B. Identifies the redundancy mode of the Ethernet segment.
- C. Identifies the type of algorithm to be used in the election process.
- D. Allows the other PEs to discover which PEs are connected to the same Ethernet segment.
Correct Answer: C 🗳️
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A host is connected to a MAC-VRF on leaf1 and leaf2. The MAC-VRF interfaces on leaf1 and leaf2 are associated to an Ethernet segment configured for active-standby multi-homing.
Which of the following statements is FALSE?
- A. Only the DF will accept traffic from the host.
- B. The non-DF is capable of forwarding unicast traffic from the remote PEs to the host.
- C. Leaf1 and leaf2 will hold an election to identify which leaf router will be the DF for the MAC-VRF.
- D. The DF will forward all BUM traffic from the remote PEs to the host.
Correct Answer: B 🗳️
Explanation: Only visible for Prep4sureExam members. You can sign-up / login (it's free).
Consider the exhibit.
Leaf-1 has received an ARP request from host-1 for host-2. Leaf-1 has added host-1's MAC address in its MAC table and host-1's MAC/IP addresses in its proxy-ARP table.
Which of the following steps is FALSE?
- A. Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 0.0.0.0 to the remote peers.
- B. Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 192.168.100.1 to the remote peers.
- C. The remote peers generate a gratuitous ARP towards their directly connected hosts to announce the learned IP/MAC mapping information.
- D. The remote peers ignore the EVPN update with the IP address set to 0.0.0.0 and use the update with the IP address set to 192.168.100.1 to populate their MAC forwarding tables.
Correct Answer: A 🗳️
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Consider the exhibit.
The two MAC-VRFs are inter-connected using IP-VRF3 which is to be deployed using asymmetric routing.
Which of the following statements is FALSE?
- A. Leaf-1 and Leaf-2 will advertise the IP prefixes to each other using EVPN route-type 5.
- B. Leaf-1 and Leaf-2 will advertise host MAC/IP address information using EVPN route-type 2.
- C. Leaf-1 and Leaf-2 must both have instances of MAC-VRF1 and MAC-VRF2.
- D. MAC-VRF1 and MAC-VRF2 will connect to IP-VRF3 using an IRB interface.
Correct Answer: C 🗳️
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Consider the exhibit.
The network is configured for interface-less symmetric routing with an ECMP of 4 enabled on all leaf routers.
Which of the following statements is FALSE?
- A. IP-VRF1 on Leaf1, Leaf2 and Leaf3 must be configured with a VXLAN-routed interface.
- B. MAC-VRF100 on Leaf1 and Leaf2 must have BGP EVPN and BGP VPN configured.
- C. The IRB interfaces on Leaf1 and Leaf2 must be configured to advertise learned local host-routes.
- D. Anycast gateway is an optional configuration on the Leaf1 and Leaf2 IRB interfaces.
Correct Answer: D 🗳️
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