单选题Which of the following conditions guarantees that a broadcast storm cannot occur？（）Aa native VLAN mismatch on either side of an 802.1Q linkBBPDU filter configured on a link to another switchCSpanning Tree Protocol enabled on both Layer 2 and multilayer switchesDPortFast enabled on all access and trunk ports
单选题
Which of the following conditions guarantees that a broadcast storm cannot occur？（）
A
a native VLAN mismatch on either side of an 802.1Q link
B
BPDU filter configured on a link to another switch
C
Spanning Tree Protocol enabled on both Layer 2 and multilayer switches
D
PortFast enabled on all access and trunk ports
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