What was the first widely adopted commercial UNIX?
Answer : A
Which special device provides an endless stream of null output?
Answer : B
To create or delete files in a directory, you need what permission?
Answer : B
In bash, a for loop will iterate over a list of strings separated by what?
Answer : B
What is the standard sequence for booting a standard PC?
Answer : C
Which of the following commands is most likely to cause you to need to restore from backup?
Answer : A
What does the ctime of a file indicate?
Answer : B