单选题As a network administrator， can you tell me what the root guard feature provides in a bridgednetwork？（）AIt ensures that BPDUs sent by the root bridge are forwarded in a timely mannerBIt enforces the root bridge placement in the networkCIt ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.DIt ensures that the bridge is elected as root bridge in the network.
单选题
As a network administrator， can you tell me what the root guard feature provides in a bridgednetwork？（）
A
It ensures that BPDUs sent by the root bridge are forwarded in a timely manner
B
It enforces the root bridge placement in the network
C
It ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.
D
It ensures that the bridge is elected as root bridge in the network.
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