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PCNSE · Question #549

An engineer has been tasked with reviewing traffic logs to find applications the firewall is unable to identify with App-ID. Why would the application field display as incomplete?

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Submitted by fernanda_arg· Apr 18, 2026Operate

Question

An engineer has been tasked with reviewing traffic logs to find applications the firewall is unable to identify with App-ID. Why would the application field display as incomplete?

Options

  • AThe client sent a TCP segment with the PUSH flag set.
  • BThe TCP connection was terminated without identifying any application data.
  • CThere is insufficient application data after the TCP connection was established.
  • DThe TCP connection did not fully establish.

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Topics

#App-ID#Traffic Logs#TCP Handshake#Session Establishment
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