单选题Which type of attack is characterized by flood of packet that requesing a TCP connection to a server?（）Adenial of serviceBbrute forceCreconnaissanceDTrojan horse
单选题
Which type of attack is characterized by flood of packet that requesing a TCP connection to a server?（）
A
denial of service
B
brute force
C
reconnaissance
D
Trojan horse
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