Which command can be executed by a user who is already logged into the system, in order to change to the root user? (type the command without any parameters)
A. su
B. root
C. chroot
D. user
Answer: Option A
Related Questions on Linux
What command is used to count the total number of lines, words, and characters contained in a file?
A. countw
B. wcount
C. wc
D. count p
E. None of the above
What command is used with vi editor to delete a single character?
A. x
B. y
C. a
D. z
E. None of the above
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