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TCP Three-Way Handshake Debugging Quiz
20 Questions
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TCP Three-Way Handshake Debugging Quiz

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Questions and Answers

Which type of packets does the debug flow output capture in this example?

  • ARP packets
  • UDP packets
  • TCP packets (correct)
  • ICMP packets

    • What does the output for the SYN packet show?

  • The policy ID (correct)
  • The NAT information
  • The route to the destination
  • The session ID

    • What does the output of the SYN-Ack and Ack packets show?

  • The session ID (correct)
  • The policy ID
  • The NAT information
  • The route to the destination

    • In what troubleshooting cases is the debug flow tool useful?

    <p>When you need to understand why a packet is taking a specific route</p> Signup and view all the answers

    What does 'Denied by forward policy check' indicate in the debug flow output?

    <p>No firewall policy allows the traffic</p> Signup and view all the answers

    What does 'Denied by end point ip filter check' indicate in the debug flow output?

    <p>The IP-address has been quarantined by DLP</p> Signup and view all the answers

    What can the debug flow help you identify when FortiGate is dropping packets?

    <p>The reason for packet loss</p> Signup and view all the answers

    What does 'exceeded shaper limit, drop' indicate in the debug flow output?

    <p>Packets dropped because of traffic shaping</p> Signup and view all the answers

    What does 'Denied by forward policy check' indicate in the debug flow output?

    <p>No firewall policy allows the traffic</p> Signup and view all the answers

    What can the debug flow tool help you understand?

    <p>Why a packet is dropped</p> Signup and view all the answers

    Which of the following is a possible reason for a dropped packet due to a traffic shaper exceeding its threshold?

    <p>The packet is destined to a FortiGate IP-address but the service is not enabled.</p> Signup and view all the answers

    What does the error message 'reverse path check fail, drop' indicate?

    <p>The packet failed the reverse path forwarding check.</p> Signup and view all the answers

    Which mode of FTP determines who initiates the data channel?

    <p>Passive mode</p> Signup and view all the answers

    What is the purpose of the control channel in FTP?

    <p>To send FTP commands</p> Signup and view all the answers

    What is the role of a session helper in network protocols?

    <p>To facilitate communication between network devices</p> Signup and view all the answers

    Which of the following is NOT a possible reason for a dropped packet destined to a FortiGate IP-address?

    <p>The service is using a different TCP port</p> Signup and view all the answers

    What is the composition of an FTP file transfer in terms of TCP sessions?

    <p>Two TCP sessions: one for the control channel and one for data transfer</p> Signup and view all the answers

    In which mode of FTP does the client initiate the data channel?

    <p>Passive mode</p> Signup and view all the answers

    What is the purpose of the port command in FTP?

    <p>To specify the client IP-address and TCP port for the incoming data channel</p> Signup and view all the answers

    What can cause a dropped packet not destined to a FortiGate IP-address?

    <p>The packet matches a local-in policy with action deny</p> Signup and view all the answers

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