Linux Foundation Certified System Administrator (LFCS) Practice Test

Questions # 61:

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

Options:

File size

Modify timestamp

Link count

Inode number

Permissions

Questions # 62:

What does the ? symbol within regular expressions represent?

Options:

Match the preceding qualifier one or more times.

Match the preceding qualifier zero or more times.

Matchthe preceding qualifier zero or one times.

Match a literal ? character.

Questions # 63:

What is true regarding TCP port 23?

Options:

Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.

Port 23 is the well known port for the SSH service which provides secure logins.

Port 23 is the well known port for the rlogin service which is SSL secured by default.

Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell.

Questions # 64:

Which of the following commands puts the output of the command date into the shell variable mydate?

Options:

mydate="$(date)"

mydate="exec date"

mydate="$((date))"

mydate="date"

mydate="${date}"

Questions # 65:

What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Specify ONLY the command without any path or parameters.)

Options:

Questions # 66:

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

Options:

It enables color to highlight matching parts.

It only outputs non-matching lines.

It shows the command's version information.

It changes theoutput order showing the last matching line first.

Questions # 67:

A user accidentally created the subdirectory \dir in his home directory. Which of the following commands will remove that directory?

Options:

rmdir '~/\dir'

rmdir "~/\dir"

rmdir ~/'dir'

rmdir ~/\dir

rmdir ~/\\dir

Questions # 68:

What is the difference between the i and a commands of the vi editor?

Options:

i (interactive) requires the user to explicitly switch between vi modes whereas a (automatic) switches modes automatically.

i (insert) inserts text before the current cursor position whereas a (append) inserts text after the cursor.

i (independent rows) starts every new line at the first character whereas a (aligned rows) keeps the indentation of the previous line.

i (interrupt) temporarily suspends editing of a file to the background whereas a (abort) terminates editing.

Questions # 69:

Which file used by XDM specifies the default wallpaper?

Options:

/etc/X11/xdm/Xsetup

/etc/X11/xdm.conf

/etc/X11/xdm/Defaults

/etc/X11/defaults.conf

Questions # 70:

Which of the following commands creates an ext3 filesystem on /dev/sdb1? (Choose TWO correct answers.)

Options:

/sbin/mke2fs -j /dev/sdb1

/sbin/mkfs -t ext3 /dev/sdb1

/sbin/mkfs -c ext3 /dev/sdb1

/sbin/mke3fs -j/dev/sdb1

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