A.3389 B.1433 C.135 D.80
A.重放攻擊B.拒絕服務攻擊C.中間人攻擊D.后門漏洞攻擊
A./etc/password、/etc/shadow B./etc/passwd、/etc/ssh/sshd_config C./etc/passwd、/etc/shadow D./etc/passwd、/etc/aliases