题目内容
（请给出正确答案）
提问人：网友f******g
发布时间：2022年3月21日 19:01
[单项选择题]
A packet is evaluated against three user-defined terms within a firewall filter and no match is
A. The filter will permit the packet and take no additional action
B. The filter will reject the packet and send an ICMP message back to the sender
C. The filter will discard the packet and take no additional action
D. The filter will permit the packet and write a log entry to the firewall log
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