Online Questions – Valid Practice LFCS Exam Dumps Test Questions [Q85-Q104]

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Online Questions – Valid Practice LFCS Exam Dumps Test Questions

100% Real LFCS dumps – Brilliant LFCS Exam Questions PDF

NEW QUESTION 85
Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?

0 * * * 30 myscript

30 * * * 6 myscript

30 0 * * 0 myscript

30 0-23 * * 0 myscript

0 0-23 * * 30 myscript

NEW QUESTION 86
Which of the following commands updates the linker cache of shared libraries?

mkcache

soconfig

mkldconfig

lddconfig

ldconfig

NEW QUESTION 87
CORRECT TEXT
What word is missing from the following SQL statement?
insert into tablename ________(909, ‘text’);
(Please specify the missing word using lower-case letters only.)

VALUES,
values

NEW QUESTION 88
CORRECT TEXT
By default, the contents of which directory will be copied to a new user’s home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.)

/etc/skel

NEW QUESTION 89
What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)

To create RAID 9 arrays.

To dynamically change the size of logical volumes.

To encrypt logical volumes.

To create snapshots.

To dynamically create or delete logical volumes.

NEW QUESTION 90
What is the difference between the i and a commands of the vi editor?

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.

NEW QUESTION 91
Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?

chmod u=rwx,go=rx /bin/foo

chmod o+rwx,a+rx /bin/foo

chmod 577 /bin/foo

chmod 775 /bin/foo

NEW QUESTION 92
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?

grep ‘[56]’ birthdays

grep 05?6? birthdays

grep ‘[0-9]*-0[56]-‘ birthdays

grep 06 birthdays | grep 05

NEW QUESTION 93
What does the command mount -a do?

It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.

It shows all mounted file systems that have been automatically mounted.

It opens an editor with root privileges and loads /etc/fstab for editing.

It ensures that all file systems listed with the option auto in /etc/fstab are mounted.

It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.

NEW QUESTION 94
Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose THREE correct answers.)

127.0.0.0/8

10.0.0.0/8

169.255.0.0/16

172.16.0.0/12

192.168.0.0/16

NEW QUESTION 95
CORRECT TEXT
In which file, if present, must all users be listed that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

/etc/cron.allow

NEW QUESTION 96
SIMULATION
Which environment variable should be set in order to change the time zone for the commands run from within the environment variable’s scope? (Specify the variable name only.)

NEW QUESTION 97
In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

Without additional configuration, no users may have user specific crontabs.

Without additional configuration, all users may have user specific crontabs.

The cron daemon will refuse to start and report missing files in the system’s logfile.

When a user creates a user specific crontab the system administrator must approve it explicitly.

NEW QUESTION 98
What is the purpose of the file /etc/profile?

It contains the welcome message that is displayed after login.

It contains security profiles defining which users are allowed to log in.

It contains environment variables that are set when a user logs in.

It contains default application profiles for users that run an application for the first time.

NEW QUESTION 99
What is the output of the following command?
echo “Hello World” | tr -d aieou

Hello World

eoo

Hll Wrld

eoo Hll Wrld

NEW QUESTION 100
Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct answers.)

NEW QUESTION 101
Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)

~/.bashconf

~/.bashrc

~/.bashdefaults

~/.bash_etc

~/.bash_profile

NEW QUESTION 102
Which of the following commands can be used to download the RPM package kernel without installing it?

yum download –no-install kernel

yumdownloader kernel

rpm –download –package kernel

rpmdownload kernel

NEW QUESTION 103
The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section?

It is placed in curly brackets as in Section SectionName { … }.

It is placed between a line containing Section “SectionName” and a line containing EndSection.

It is placed between the tags <Section name=”SectionName”> and </Section>

It is placed after the row [SectionName].

It is placed after an initial unindented Section “SectionName” and must be indented by exactly one tab character.

NEW QUESTION 104
Which file contains the date of the last change of a user’s password?

/etc/gshadow

/etc/passwd

/etc/pwdlog

/etc/shadow

/var/log/shadow

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