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中级工程师
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本帖最后由 keyhappy 于 2012-8-16 17:49 编辑
QUESTION 245
Which of these is true regarding the configuration and application of port access control lists?
A. PACLs can be applied in the inbound or outbound direction of a Layer 2 physical interface.
B. At Layer 2, a MAC address PACL will take precedence over any existing Layer 3 PACL.
C. When you apply a port ACL to a trunk port, the ACL filters traffic on all VLANs present on the trunk port.
D. PACLs are not supported on EtherChannel interfaces.
Answer: C
为什么这一题不能选A呢,PACL不是可以应用在2层接口上的入和出方向吗?
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