82. Linux作業環境中，何者可記錄近期所有登入系統的使用者？ (A)/var/log/dmesg (B)/var/log/message (C)/var/log/syslog (D)/var/log/secure。

87. SQL語法UPDATE之正確寫法為何？ (A)UPDATE bookname FROM Books WHERE id = 2 SET bookname ='哈利波特' (B)UPDATE FROM Books WHERE id = 2 SET bookname = '哈利波特' (C)UPDATE Books WHERE id = 2 SET bookname = '哈利波特' (D)UPDATE Books SET bookname = '哈利波特' WHERE id = 2。