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Which three fields can be included in a pcap filter? (Choose three.)
Correct Answer: B,C,D
Explanation/Reference: BD: Following are few filter examples (though NOT limited solely to these options) which can be referenced/utilized/applied: Filter By Port > tcpdump filter "port 80" Filter By Source IP > tcpdump filter "src x.x.x.x" Filter By Destination IP > tcpdump filter "dst x.x.x.x" Filter By Host (src & dst) IP > tcpdump filter "host x.x.x.x" Filter By Host (src & dst) IP, excluding SSH traffic > tcpdump filter "host x.x.x.x and not port 22" C: pcap filter expression primitives include: * rnr num True if the packet was logged as matching the specified PF rule number (applies only to packets logged by OpenBSD's or FreeBSD's pf(4)). * rulenum num Synonymous with the rnr modifier. References: https://live.paloaltonetworks.com/t5/Management-Articles/How-To-Packet-Capture-tcpdump-On- Management-Interface/ta-p/55415 http://www.tcpdump.org/manpages/pcap-filter.7.html
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Correct Answer is B,D,E