單項(xiàng)選擇題

Which technique is specifically a weakness of callback systems?哪項(xiàng)技術(shù)是回?fù)芟到y(tǒng)特有的弱點(diǎn)?()

A.social engineering.社會(huì)工程學(xué)
B.between-the-linesentry.之間的線路輸入
C.call forwarding.呼叫轉(zhuǎn)移
D.spoofing.欺騙

微信掃碼免費(fèi)搜題