A.select * from student
B.select name from student
C.delete from student
D.update name from student
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最新試題
在設(shè)置iptables規(guī)則時,不指定規(guī)劃表時,規(guī)則將保存在filete表中。
有關(guān)防火墻的說法正確的是()
在設(shè)置iptables規(guī)則時,不指定規(guī)劃表時,規(guī)則將保存在默認的filete表中。
判斷文件file是否可執(zhí)行,可以用()
iptables命令中-t選項指定()
iptables四表中能實現(xiàn)端口映射的表是()
命令“seq16”執(zhí)行后將產(chǎn)生的數(shù)字序列是()
iptables中的filte表有一般作用于那幾個鏈()
shell腳本中可用于測試字符串x是否為空的條件語句是()
如果在linux系統(tǒng)上想通過iptables實現(xiàn)路由功能,則需要配置有()