Linux Foundation Certified System Administrator (LFCS) Practice Test

Questions # 31:

Which of the following is a legacy program provided by CUPS for sending files to the printer queues on the command line?

Options:

lpd

lpp

lpq

lpr

Questions # 32:

Which of the following files, located in the user home directory, is used to store the Bash history?

Options:

.bash_history

.bash_histfile

.history

.bashrc_history

.history_bash

Questions # 33:

How can the existing environment variable FOOBAR be suppressedfor the execution of the script./myscript only?

Options:

unset -v FOOBAR;./myscript

set -a FOOBAR="";./myscript

env -u FOOBAR./myscript

env -i FOOBAR./myscript

Questions # 34:

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

Options:

dd if=/dev/zero of=/dev/sda bs=512

dd if=/dev/zero of=/dev/sdabs=512 count=1

dd if=/dev/zero of=/dev/sda bs=440 count=1

dd if=/dev/zero of=/dev/sda bs=440

Questions # 35:

Regarding the command:

nice -5 /usr/bin/prog

Which of the following statements is correct?

Options:

/usr/bin/prog is executed with a nice level of -5.

/usr/bin/prog is executed with a nice level of 5.

/usr/bin/prog is executed with a priority of -5.

/usr/bin/prog is executed with a priority of 5.

Questions # 36:

Which command chain will count the number of regular files with the name of foo.txt within /home?

Options:

ls -lR /home | grep foo.txt | wc -l

find /home -type f -name foo.txt | wc -l

find /home -name foo.txt -count

find /home -name foo.txt | wc -l

grep -R foo.txt /home | wc -l

Questions # 37:

Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)

Options:

Questions # 38:

Which of the following commands lists all defined variables and functions within Bash?

Options:

env

set

env -a

echo $ENV

Questions # 39:

Which signal is missing from the following command that is commonly used to instruct adaemon to reinitialize itself, including reading configuration files?

killall -s _______ daemon

Options:

Questions # 40:

Given a file called birthdays containing lines like:

YYYY-MM-DD Name

1983-06-02 Tim

1995-12-17 Sue

Which command would you use to output the lines belonging to all people listed whose birthday is in May or June?

Options:

grep '[56]' birthdays

grep 05?6? birthdays

grep '[0-9]*-0[56]-' birthdays

grep 06 birthdays | grep 05

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