Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

You suspect automated bots are repeatedly attempting to open SSH sessions with your Linux bastion host. After copying a packet capture from the server and loading it in Wireshark, you want to display only the first packet of every inbound connection attempt-that is, TCP packets where the SYN flag is set, the ACK flag is clear, and the destination port is 22. Which Wireshark display filter accomplishes this?

  • tcp.flags.fin == 1 and tcp.dstport == 22

  • tcp.flags.syn == 1 and tcp.flags.ack == 0 and tcp.dstport == 22

  • tcp.port == 22 and tcp.flags.push == 1

  • tcp.flags.syn == 1 and tcp.flags.ack == 1 and tcp.srcport == 22

CompTIA Linux+ XK0-006 (V8)
Security
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