LX0-103 Online Practice Questions and Answers

Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct answers.)

A. 0

B. 1

C. 3

D. 5

E. 6

Which of the following commands lists the dependencies of a given dpkg package?

A. apt-cache depends-on package

B. apt-cache dependencies package

C. apt-cache depends package

D. apt-cache requires package

In compliance with the FHS, in which of the directories are man pages found?

A. /usr/share/man

B. /opt/man

C. /usr/doc/

D. /var/pkg/man

E. /var/man

Which of the following characters can be combined with a separator string in order to read from the current input source until the separator string, which is on a separate line and without any trailing spaces, is reached?

A. <<

B. <|

C. !<

D. and<

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

A. sed '/bob/Bob' letter > newletter

B. sed s/bob/Bob/ letter < newletter

C. sed 's/bob/Bob' letter > newletter

D. sed 's/bob/Bob/g' letter > newletter

E. sed 's/bob, Bob/' letter > newletter

Which of the following sequences in the vi editor saves the opened document and exits the editor? (Choose TWO correct answers.)

A. esc ZZ

B. ctrl :w!

C. esc zz

D. esc :wq!

E. ctrl XX

Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)

A. uptime

B. up

C. top

D. uname -u

E. time up

After running the command umount /mnt, the following error message is displayed:

umount: /mnt: device is busy.

What is a common reason for this message?

A. The kernel has not finished flushing disk writes to the mounted device.

B. A user has a file open in the /mnt directory.

C. Another file system still contains a symlink to a file inside /mnt.

D. The files in /mnt have been scanned and added to the locate database.

E. The kernel thinks that a process is about to open a file in /mnt for reading.

Which of the following pieces of information of an existing file is changed when a hard link pointing to that file is created?

A. File size

B. Modify timestamp

C. Link count

D. Inode number

E. Permissions

Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)