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Nokia 4A0-D03 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| SR Linux and EVPN Fundamentals | 25% | - SR Linux architecture and CLI - EVPN control plane and MP-BGP - VXLAN encapsulation and underlay |
| Data Center Interconnect (DCI) Solutions | 25% | - Gateway-less EVPN DCI - Interoperability with Nokia 7750 SR - BGP route policies and route reflectors |
| Layer 2 EVPN Services | 25% | - Anycast Gateway and IRB - EVPN Route Types 1β4 - Multi-homing and Ethernet Segments |
| Layer 3 EVPN Services | 25% | - Symmetric and asymmetric routing - VRF integration and route targets - EVPN Route Type 5 |
Nokia SR Linux EVPN and Data Center Interconnect Sample Questions:
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.
Correct Answer: B π³οΈ
Explanation: Only visible for GuideTorrent members. You can sign-up / login (it's free).
When PEs are connected to an Ethernet segment with at least one active MAC-VRF, which of the following statements about the AD per EVI updates sent by a PE is FALSE?
- A. It advertises the multi-homing mode used by the PEs for the Ethernet segment.
- B. It is used by the remote peers for aliasing.
- C. It contains the route-target so that the update can be imported into the correct MAC-VRF instance.
- D. It contains the VNI that is to be used by the remote peers in the data plane.
Correct Answer: C π³οΈ
Explanation: Only visible for GuideTorrent members. You can sign-up / login (it's free).
Consider the exhibit.
Host-2 is sending data to Host-1. The network is designed to use asymmetric routing.
Which of the following statements about the operation of the data plane is TRUE?
- A. Leaf-1 forwards the data for mac-vrf-2 towards Leaf-2 with a VNI of 2.
- B. Leaf-2 does a MAC look-up using mac-vrf-1 and forwards the data towards Host-1.
- C. Leaf-2 IP-VRF consults the ARP table to learn Host-1 MAC address.
- D. Leaf-2 forwards the data for mac-vrf-2 towards the IP-VRF using its IRB interface.
Correct Answer: B π³οΈ
Explanation: Only visible for GuideTorrent members. You can sign-up / login (it's free).
Consider the exhibit.
All three leafs have an EVPN MP-BGP session with the route reflector in Spine-1. Leaf-2 and Leaf-3 have existing instances of an L2 EVPN named MAC VRF-1. Leaf-1 has just enabled a new instance of MAC VRF-1.
Which of the following steps is NOT taken when this new instance is enabled?
- A. Leaf-2 and Leaf-3 auto-discover the new peer based on the route target in the received IMET route.
- B. Leaf-1 generates an IMET route.
- C. Leaf-2 and Leaf-3 add Leaf-1 to their existing flooding list for BUM traffic.
- D. Leaf-1 advertises the IMET route in a BGP EVPN update directly to Leaf-2 and Leaf-3.
Correct Answer: D π³οΈ
Explanation: Only visible for GuideTorrent members. You can sign-up / login (it's free).
Which of the following statements about the decoupled gateway-based data center interconnect solution is TRUE?
- A. The WAN PE maintains a peering session with the data center route reflector.
- B. There is a clear demarcation for security and QoS between the data center border leaf and the WAN PE.
- C. The IP addresses of all the leaf routers and route-reflectors must be reachable by the routers in the WAN.
- D. VXLAN tunnels are established between the leaf routers in the different data centers.
Correct Answer: B π³οΈ
Explanation: Only visible for GuideTorrent members. You can sign-up / login (it's free).
