Initiating Port Scans

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Background: Roger is an Ethical Hacker with the task of security testing He initiates a port scan, which displays the below result:

Scan directed at open port:ClientServer192.168.1.90:4079 —–FIN/URG/PSH—–> <—-NO RESPONSE——
Scan directed at the closed port:ClientServer192.168.1.90:4079 —–FIN/URG/PSH—–><—–RST/ACK———-

Q: Which type of scan has Roger initiated?

a. XMAS scan

b. RPC scan

c. IDLE scan

d. SYN scan

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