4A0-D03：最新的Nokia認證4A0-D03考題，Nokia SR Linux EVPN and Data Center Interconnect認證

問題1
Consider the exhibit.

All three of the leafs have a MP-BGP EVPN session to the route-reflector Spine-1. Leaf-1, Leaf-2 and Leaf-3 have existing instances of an L2 EVPN named MAC VRF-1. Host-1 has just sent its first Ethernet frame into MAC VRF-1 on Leaf-1.
Which of the following steps is FALSE?

A. Leaf-1 populates Host-1's MAC address learnt on the local interface to its MAC table.

B. The route-reflector forwards the EVPN update to Leaf-2 and Leaf-3.

C. Leaf-1 generates an EVPN route-type 5 update with Host-1's MAC address and sends it to the route reflector.

D. Leaf-2 and Leaf-3 import the EVPN update based upon the route target.

正確答案: C

說明：（僅 PDFExamDumps 成員可見）

問題2
Consider the exhibit.

dcgw10 is a Nokia 7750SR and is used as the integrated gateway.
Which of the following is NOT configured in VPLS 100 on dcgw10?

A. A VXLAN instance with the VNI for the VPLS.

B. A BGP instance with two unique route targets.

C. The EVI to be used by the VPLS.

D. The BGP instance bound to the MPLS tunnels toward dcgw20.

正確答案: A

說明：（僅 PDFExamDumps 成員可見）

問題3
When providing L3 multi-homing on two or more leaf routers, which of the following is FALSE?

A. In a single-active multi-homing scenario, the DF-election is used to identify the active leaf router.

B. All learned 3rd party prefixes are advertised using EVPN route type 5.

C. The Ethernet segment is associated with the next-hop for the 3rd party prefixes.

D. In an all-active multi-homing scenario, the DF-election is used to identify the leaf router that is responsible for forwarding BUM traffic to the host.

正確答案: D

說明：（僅 PDFExamDumps 成員可見）

問題4
Which of the following statements about the gateway-less data center interconnect solution is FALSE?

A. The IP addresses of the leaf routers need to be re-distributed into the WAN.

B. The data center gateway routers maintain a MP-BGP EVPN peering with the data center route reflector.

C. The leaf routers are able to establish a full mesh of VXLAN tunnels across the WAN.

D. The EVPN overlay is transparently carried over the WAN network.

正確答案: B

說明：（僅 PDFExamDumps 成員可見）

問題5
Consider the exhibit.

The network is going to be designed to use interface-less symmetric routing.
Which of the following statements is TRUE?

A. Forwarding information will be exchanged between the PEs using EVPN route-type 2 updates.

B. The IRB configuration does not require anycast gateway configuration on the ip-vrf.

C. An instance of each mac-vrf is required on each leaf.

D. The ingress PE will perform layer 2 and layer 3 lookups while the egress PE will perform layer 2 lookup.

正確答案: A

說明：（僅 PDFExamDumps 成員可見）

問題6
Which of the following four symmetric routing options does NOT require the use of an EVPN route-type 2?

A. Prefix routing interface-ful numbered

B. Host routing

C. Prefix routing interface-ful unnumbered

D. Prefix routing interface-less

正確答案: A

說明：（僅 PDFExamDumps 成員可見）

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