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The correct answer is D.

OBJ-2.1: Port Scanning is the name for the technique used to identify open ports and services available on a network host. Based on the logs, you can see a sequential scan of some commonly used ports (20, 21, 22, 23, 25, 80, 135, 443, 445) with a two-second pause between each attempt. The scan source is, and the destination of the scan is, making “Port scan targeting” the correct choice. IP fragmentation attacks are a common form of denial of service attack, in which the perpetrator overbears a network by exploiting datagram fragmentation mechanisms. A denial-of-service (DoS) attack occurs when legitimate users cannot access information systems, devices, or other network resources due to a malicious cyber threat actor’s actions.

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