You are a Penetration Tester and are assigned to scan a server. You need to use a scanning technique wherein the TCP Header is split into many packets so that it becomes difficult to detect what the…

ACK flag scanning sends packets with only the ACK flag set to probe firewall rule sets and distinguish stateful from stateless filters, not to fragment packets for evasion.

TCP Scanning is a broad category covering many connection-based scan types and does not describe a specific packet-fragmentation evasion technique.

IP Fragment Scanning works by dividing the TCP header into multiple fragmented packets so that many firewalls and IDS engines, which do not reassemble fragments before inspection, cannot analyze the complete packet and identify the scan. This fragmentation effectively obscures the nature of the probe from security controls sitting on the network path. It is a recognized evasion technique used specifically when a penetration tester needs to avoid triggering signature-based detection.

Inverse TCP flag scanning uses abnormal flag combinations such as FIN, URG, or PSH to elicit RST responses from closed ports on some operating systems, which is unrelated to IP fragmentation.