多项选择题

What are three terminating actions for firewall filters?（）

A. reject
B. drop
C. permit
D. accept
E. discard

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单项选择题

A packet is evaluated against three user-defined terms within a firewall filter and no match is found. What correctly describes the action the firewall filter will take for this packet?（）

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.

多项选择题

What are three valid match criteria in a firewall filter applied to a Layer 3 interface?（）

A. IP address
B. MAC address
C. protocol
D. port
E. session ID