Which of the following commands are used to get information on the proper use of ls? (Choose two correct answers.)

• A.man ls
• B.usage ls
• C.info ls
• D.manual ls
• E.option ls

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Which of the following statements are true regarding a typical shell script? (Choose two.)

• A.It is located in /etc/bash/scripts/.
• B.It is compiled into a binary file compatible with the current machine architecture.
• C.It is located in /usr/local/scripts/.
• D.It starts with the two character sequence #!.
• E.It has the executable permission bit set.

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What is the return value of a shell script after successful execution?

• A.255
• B.-255
• C.0
• D.-1
• E.1

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What is true about links in a Linux file system?

• A.When the target of the symbolic link is moved, the link is automatically updated.
• B.Only the root user can create hard links.
• C.A hard link can only point to a directory and never to a file.
• D.A symbolic link can point to a file on another file system.
• E.A symbolic link can only point to a file and not to a directory.

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Which of the following Linux Distributions is derived from Red Hat Enterprise Linux?

• A.Raspbian
• B.openSUSE
• C.CentOS
• D.Debian
• E.Ubuntu

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