题目内容

油类、电器设备引起的火灾适合用()灭火:

A. 二氧化碳灭火器
B. 干粉灭火器
C. 酸碱灭火器
D. 泡沫灭火器
E. 1211灭火器

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更多问题

By default, which name is used for super user in Linux?

A. admin
B. supervisor
C. root
D. branch

Which command is used to create a new user account?

A. newusr
B. addusr
C. newuser
D. adduser

The su –lcommand will do ___

A. Change the user password to “-l”
B. Disable the user account “l”
C. Disable the user account “-l”
D. Simulate a full login as super user

If you enable shadow password, which files does Linux store passwords?

A. /etc/passwd
B. /etc/password
C. /etc/shadow
D. /etc/shadowwd

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