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CS0-003 · Question #139

A security analyst is reviewing the output of tcpdump to analyze the type of activity on a packet capture: Which of the following generated the above output?

The correct answer is A. A port scan. Port scan againts 442-446 ports. For port 443 the scanner closed the connection after SYN-ACK.

Submitted by wei.xz· Mar 6, 2026Security Operations

Question

A security analyst is reviewing the output of tcpdump to analyze the type of activity on a packet capture:

Which of the following generated the above output?

Exhibit

CS0-003 question #139 exhibit

Options

  • AA port scan
  • BA TLS connection
  • CA vulnerability scan
  • DA ping sweep

How the community answered

(29 responses)
  • A
    83% (24)
  • B
    7% (2)
  • C
    3% (1)
  • D
    7% (2)

Explanation

Port scan againts 442-446 ports. For port 443 the scanner closed the connection after SYN-ACK.

Topics

#packet analysis#tcpdump#port scanning#network reconnaissance

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