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Oracle Enterprise Linux: Fundamentals Sample Questions:

1. View the Exhibit.
What is the output of the shell script when executed at the bash shell?

A) 1234
B) 1
C) 4444
D) 1

2. Which three statements are true about the mount command? (Choose three.)

A) It supports labels for mounting.
B) By default it can be used by an ordinary user to mount the local file system.
C) It will list all the currently mounted file systems, if executed without any arguments.
D) It will list only the file systems listed in /etc/fstab if executed without any arguments
E) It can be used only by root to mount the local file system.

3. View the Exhibit.
A normal user bob logs in from server200 to server1 through telnet and runs the xclock command but fails with an error message as shown in the Exhibit. What could be the possible reason for the error?

A) This is because the graphical display manager is not configured to allow TCP connections.
B) This is because the default X access controls do not permit remote connections.
C) This is because of the temporary failure in name resolution.
D) This is because gdm is not started on the machine.

4. The Linux file system contains a directory by default on which all users have rwx permissions. Only the root user has the permission to delete any file created by any user.
Identify the directory and find out why it is so.

A) /tmp, because sticky bit is set on that
B) /home, because home directories will have 770 permissions
C) / (root file system), because of 1777 permissions
D) /home, because no user will have write permission on files owned by others
E) /usr, because all users will have rwx permissions and sticky bit set on that

5. As root you have changed the default login shell to one of the shells listed in /etc/shells file. Which file entry is modified as a result of this?

A) /etc/shells
B) /etc/passwd
C) /etc/shadow
D) /etc/default/useradd

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