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During Scanning of a Test Network, Paul Sends TCP Probe

Question 123

Multiple Choice

During scanning of a test network, Paul sends TCP probe packets with the ACK flag set to a remote device and then analyzes the header information (TTL and WINDOW field) of the received RST packets to find whether the port is open or closed. Analyze the scanning result below and identify the open port. During scanning of a test network, Paul sends TCP probe packets with the ACK flag set to a remote device and then analyzes the header information (TTL and WINDOW field) of the received RST packets to find whether the port is open or closed. Analyze the scanning result below and identify the open port. A) Port 22 B) Port 23 C) Port 21 D) Port 20


A) Port 22
B) Port 23
C) Port 21
D) Port 20

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