多选题The DAI feature has been implemented in the Company switched LAN. Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）ADAI can be performed on ingress ports only.BDAI can be performed on both ingress and egress ports.CDAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports.DDAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.EDAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.FDAI is supported on access and trunk ports only.
多选题
The DAI feature has been implemented in the Company switched LAN. Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）
A
DAI can be performed on ingress ports only.
B
DAI can be performed on both ingress and egress ports.
C
DAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports.
D
DAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.
E
DAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.
F
DAI is supported on access and trunk ports only.
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