Which of the following kernel parameters instructs the kernel to suppress most boot messages?

• A.verbose=0
• B.quiet
• C.nomesg
• D.silent

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Which of the following commands changes all occurrences of the word "bob" in file data to "Bob" and prints the result to standard output?

• A.sed'/bob/Bob/' data
• B.sed's/bob,Bob/' data
• C.sed's/bob/Bob/' data
• D.sed'/bob/Bob' data
• E.sed's/bob/Bob/g' data

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What is the effect of the egrep command when the -v option is used?

• A.It enables color to highlight matching parts.
• B.It shows the command's version information.
• C.It only outputs non-matching lines.
• D.It changes the output order showing the last matching line first.

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In the vi editor, how can commands such as moving the cursor or copying lines into the buffer be issued multiple times or applied to multiple rows?

• A.By specifying the number right in front of a command such as 41or 2yj.
• B.By using the command :repeat followed by the number and the command
• C.By issuing a command such as :set repetition=4 with repeats every subsequent command 4 times.
• D.By specifying the number after a command such as 14or yj2followed by escape.
• E.By selecting all affected lines using the shit and cursor keys before applying the command.

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Which umask value will result in the default access permissions of 600 (rw-------) for files and 700 (rwx------) for directories?
(Specify only the numerical umask value.)

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