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- 单项选择题he Cisco Nexus 1000V Series Switches are virtual machine access switches that are an intelligent software switch implementation for VMware vSphere environments running the Cisco NX-OS Software operating system. Together with the VMware ESX hypervisor， the Nexus 1000V supports Cisco VN-Link server virtualization technology， which provides mobile virtual machine security and network policy for VMware View components， including the DHCP snooping feature. DHCP snooping is disabled on the Nexus 1000V by default. When the DHCP snooping feature is enabled on the Nexus 1000V， what are the default trust settings for the vEthernet and uplink ports？（）
A、 All vEthernet ports are trusted， and all Ethernet ports such as uplinks and port channels are trusted.
B、 All vEthernet ports are not trusted， and all Ethernet ports such as uplinks and port channels are not trusted.
C、 All vEthernet ports are trusted and all Ethernet ports such as uplinks and port channels are not trusted.
D、 All vEthernet ports are not trusted and all Ethernet ports such as uplinks and port channels are trusted.
- D
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