完美的300-620考題資源|高通過率的考試材料|高通過率的300-620：Implementing Cisco Application Centric Infrastructure

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300-620考試題庫 - 300-620考題

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最新的 CCNP Data Center 300-620 免費考試真題 (Q258-Q263):

問題 #258
What are two requirements for the IPN network when implementing a Multi-Pod ACI fabric? (Choose two.)

A. OSPF routing
B. BGP routing
C. PIM ASM multicast routing
D. VLAN ID 4
E. EIGRP routing

答案：A,E

問題 #259
The existing network and ACI fabric have been connected to support workload migration. Servers will physically terminate at the Cisco ACI, but their gateway must stay in the existing network. The solution needs to adhere to Cisco's best practices. The engineer started configuring the relevant Bridge Domain and needs to complete the configuration. Which group of settings are required to meet these requirements?

A. L2 Unknown Unicast: Flood
L3 Unknown Multicast Flooding: Optimize Flood
Multi Destination Flooding: Flood in BD
ARP Flooding: Disable
B. L2 Unknown Unicast: Hardware Proxy
L3 Unknown Multicast Flooding: Optimize Flood
Multi Destination Flooding: Flood in BD
ARP Flooding: Disable
C. L2 Unknown Unicast: Hardware Proxy
L3 Unknown Multicast Flooding: Flood
Multi Destination Flooding: Flood in BD
ARP Flooding: Enable
D. L2 Unknown Unicast: Flood
L3 Unknown Multicast Flooding: Flood
Multi Destination Flooding: Flood in BD
ARP Flooding: Enable

答案：D

解題說明：

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/migration_guides/migratin g_existing_networks_to_aci.html

問題 #260
Refer to the exhibit. An engineer must migrate workloads from the brownfield network to the Cisco ACI fabric. The VLAN 10 default gateway remains in the router located in the brownfield network. The bridge domain has already been associated with L2Out. Which two actions must be taken to migrate the workloads? (Choose two.)

A. Set L2 Unknown Unicast Flood.
B. Enable ARP Flooding.
C. Configure Multi-Destination Flooding Flood in Encapsulation.
D. Select limit IP learning to Subnet.
E. Map the MAC address of the default gateway to the bridge domain.

答案：A,B

解題說明：
Enable ARP flooding: ARP requests originated from devices connected to the Cisco ACI fabric should be able to reach the default gateway or other endpoints part of the same IP subnet and still connected to the brownfield network. Since those entities are unknown to the Cisco ACI fabric, it is required to flood ARP requests across the Cisco ACI fabric and toward the brownfield network.
Enable Unknown Unicast flooding: similar considerations valid for ARP traffic apply also to Layer
2 unknown traffic (unicast and multicast), so it is required to ensure flooding is enabled in this phase for those traffic types.
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/migration_guides/migratin g_existing_networks_to_aci.html#_Toc133408118

問題 #261
An engineer must ensure that Cisco ACI flushes the appropriate endpoints when a topology change notification message is received in an MST domain. Which three steps are required to accomplish this goal? (Choose three.)

A. Bind the spanning tree policy to the switch policy group.
B. Map VLAN range to MAT instance number.
C. Associate the STP interface policy to the appropriate interface policy group.
D. Create a new region policy under the spanning tree policy.
E. Configure a new STP interface policy.
F. Enable the BPDU interface controls under the spanning tree interface policy.

答案：A,C,F

解題說明：
To ensure that Cisco ACI flushes the appropriate endpoints when a topology change notification message is received in an MST domain, the three steps required are:
Enable the BPDU interface controls under the spanning tree interface policy (Option A)2.
Bind the spanning tree policy to the switch policy group (Option C)3.
Associate the STP interface policy to the appropriate interface policy group (Option D)3. These steps ensure that the ACI fabric responds correctly to STP events, such as topology changes, by flushing the MAC address table and the Local Station Table for the affected VLAN on the leaf switch4.

問題 #262
When the subnet is configured on a bridge domain, on which physical devices is the gateway IP address configured?

A. all leaf switches and all spine nodes
B. only leaf switches where the bridge domain of the tenant is present
C. only spine switches where the bridge domain of the tenant is present
D. all border leaf nodes where the bridge domain of the tenant is present

答案：B

解題說明：
http://www.netdesignarena.com/index.php/2016/06/16/aci-tenant-building-blocks-forwarding-logic/
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1- x/Operating_ACI/guide/b_Cisco_Operating_ACI/b_Cisco_Operating_ACI_chapter_0111.html

問題 #263
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