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LPIC-1 test 102, Part 2 of 2, version 5.0 test Dumps

102-500 test Format | Course Contents | Course Outline | test Syllabus | test Objectives





Exam Title :
LPIC-1 Linux Administrator

Exam ID :
102-500

Exam Duration :
90 mins

Questions in test :
60

Passing Score :
500 / 800

Exam Center :
LPI Marketplace

Real Questions :
LPI LPIC-1 Real Questions

VCE practice test :
LPI 102-500 Certification VCE Practice Test








Topic

Details






Topic 105: Shells and Shell Scripting




105.1 Customize and use the shell environment


Weight: 4

Description: Candidates should be able to customize shell environments to meet users' needs. Candidates should be able to modify global and user profiles.
Key Knowledge Areas:

- Set environment variables (e.g. PATH) at login or when spawning a new shell.

- Write Bash functions for frequently used sequences of commands.

- Maintain skeleton directories for new user accounts.

- Set command search path with the proper directory.

The following is a partial list of the used files, terms and utilities:

- .

- source

- /etc/bash.bashrc

- /etc/profile

- env

- export

- set

- unset

- ~/.bash_profile

- ~/.bash_login

- ~/.profile

- ~/.bashrc

- ~/.bash_logout

- function

- alias




105.2 Customize or write simple scripts


Weight: 4

Description: Candidates should be able to customize existing scripts, or write simple new Bash scripts.
Key Knowledge Areas:

- Use standard sh syntax (loops, tests).

- Use command substitution.

- Test return values for success or failure or other information provided by a command.

- Execute chained commands.

- Perform conditional mailing to the superuser.

- Correctly select the script interpreter through the shebang (#!) line.

- Manage the location, ownership, execution and suid-rights of scripts.

The following is a partial list of the used files, terms and utilities:

- for

- while

- test

- if

- read

- seq

- exec

- ||

- &&



Topic 106: User Interfaces and Desktops




106.1 Install and configure X11


Weight: 2

Description: Candidates should be able to install and configure X11.
Key Knowledge Areas:

- Understanding of the X11 architecture.

- Basic understanding and knowledge of the X Window configuration file.

- Overwrite specific aspects of Xorg configuration, such as keyboard layout.

- Understand the components of desktop environments, such as display managers and window managers.

- Manage access to the X server and display applications on remote X servers.

- Awareness of Wayland.
The following is a partial list of the used files, terms and utilities:

- /etc/X11/xorg.conf

- /etc/X11/xorg.conf.d/

- ~/.xsession-errors

- xhost

- xauth

- DISPLAY

- X



106.2 Graphical Desktops


Weight: 1


Description: Candidates should be aware of major Linux desktops. Furthermore, candidates should be aware of protocols used to access remote desktop sessions.


 


Key Knowledge Areas:

- Awareness of major desktop environments

- Awareness of protocols to access remote desktop sessions

The following is a partial list of the used files, terms and utilities:

- KDE

- Gnome

- Xfce

- X11

- XDMCP

- VNC

- Spice

- RDP





106.3 Accessibility


Weight: 1

Description: Demonstrate knowledge and awareness of accessibility technologies.

Key Knowledge Areas:

- Basic knowledge of visual settings and themes.

- Basic knowledge of assistive technology.

The following is a partial list of the used files, terms and utilities:

- High Contrast/Large Print Desktop Themes.

- Screen Reader.

- Braille Display.

- Screen Magnifier.

- On-Screen Keyboard.

- Sticky/Repeat keys.

- Slow/Bounce/Toggle keys.

- Mouse keys.

- Gestures.

- Voice recognition.





Topic 107: Administrative Tasks




107.1 Manage user and group accounts and related system files


Weight: 5

Description: Candidates should be able to add, remove, suspend and change user accounts.

Key Knowledge Areas:

- Add, modify and remove users and groups.

- Manage user/group info in password/group databases.

- Create and manage special purpose and limited accounts.
The following is a partial list of the used files, terms and utilities:

- /etc/passwd

- /etc/shadow

- /etc/group

- /etc/skel/

- chage

- getent

- groupadd

- groupdel

- groupmod

- passwd

- useradd

- userdel

- usermod





107.2 Automate system administration tasks by scheduling jobs


Weight: 4

Description: Candidates should be able to use cron and systemd timers to run jobs at regular intervals and to use at to run jobs at a specific time.

Key Knowledge Areas:

- Manage cron and at jobs.

- Configure user access to cron and at services.

- Understand systemd timer units.

The following is a partial list of the used files, terms and utilities:

- /etc/cron.{d,daily,hourly,monthly,weekly}/

- /etc/at.deny

- /etc/at.allow

- /etc/crontab

- /etc/cron.allow

- /etc/cron.deny

- /var/spool/cron/

- crontab

- at

- atq

- atrm

- systemctl

- systemd-run





107.3 Localisation and internationalisation


Weight: 3

Description: Candidates should be able to localize a system in a different language than English. As well, an understanding of why LANG=C is useful when scripting.

Key Knowledge Areas:

- Configure locale settings and environment variables.

- Configure timezone settings and environment variables.

The following is a partial list of the used files, terms and utilities:

- /etc/timezone

- /etc/localtime

- /usr/share/zoneinfo/

- LC_*

- LC_ALL

- LANG

- TZ

- /usr/bin/locale

- tzselect

- timedatectl

- date

- iconv

- UTF-8

- ISO-8859

- ASCII

- Unicode





Topic 108: Essential System Services




108.1 Maintain system time


Weight: 3

Description: Candidates should be able to properly maintain the system time and synchronize the clock via NTP.

Key Knowledge Areas:

- Set the system date and time.

- Set the hardware clock to the correct time in UTC.

- Configure the correct timezone.

- Basic NTP configuration using ntpd and chrony.

- Knowledge of using the pool.ntp.org service.

- Awareness of the ntpq command.

The following is a partial list of the used files, terms and utilities:

- /usr/share/zoneinfo/

- /etc/timezone

- /etc/localtime

- /etc/ntp.conf

- /etc/chrony.conf

- date

- hwclock

- timedatectl

- ntpd

- ntpdate

- chronyc

- pool.ntp.org





108.2 System logging


Weight: 4

Description: Candidates should be able to configure rsyslog. This objective also includes configuring the logging daemon to send log output to a central log server or accept log output as a central log server. Use of the systemd journal subsystem is covered. Also, awareness of syslog and syslog-ng as alternative logging systems is included.

Key Knowledge Areas:

- Basic configuration of rsyslog.

- Understanding of standard facilities, priorities and actions.

- Query the systemd journal.

- Filter systemd journal data by criteria such as date, service or priority.

- Configure persistent systemd journal storage and journal size.

- Delete old systemd journal data.

- Retrieve systemd journal data from a rescue system or file system copy.

- Understand interaction of rsyslog with systemd-journald.

- Configuration of logrotate.

- Awareness of syslog and syslog-ng.

Terms and Utilities:

- /etc/rsyslog.conf

- /var/log/

- logger

- logrotate

- /etc/logrotate.conf

- /etc/logrotate.d/

- journalctl

- systemd-cat

- /etc/systemd/journald.conf

- /var/log/journal/





108.3 Mail Transfer Agent (MTA) basics


Weight: 3

Description: Candidates should be aware of the commonly available MTA programs and be able to perform basic forward and alias configuration on a client host. Other configuration files are not covered.

Key Knowledge Areas:

- Create e-mail aliases.

- Configure e-mail forwarding.

- Knowledge of commonly available MTA programs (postfix, sendmail, exim) (no configuration).

Terms and Utilities:

- ~/.forward

- sendmail emulation layer commands

- newaliases

- mail

- mailq

- postfix

- sendmail

- exim





108.4 Manage printers and printing


Weight: 2

Description: Candidates should be able to manage print queues and user print jobs using CUPS and the LPD compatibility interface.

Key Knowledge Areas:

- Basic CUPS configuration (for local and remote printers).

- Manage user print queues.

- Troubleshoot general printing problems.

- Add and remove jobs from configured printer queues.
The following is a partial list of the used files, terms and utilities:

- CUPS configuration files, tools and utilities

- /etc/cups/

- lpd legacy interface (lpr, lprm, lpq)





Topic 109: Networking Fundamentals




109.1 Fundamentals of internet protocols


Weight: 4

Description: Candidates should demonstrate a proper understanding of TCP/IP network fundamentals.

Key Knowledge Areas:

- Demonstrate an understanding of network masks and CIDR notation.

- Knowledge of the differences between private and public "dotted quad" IP addresses.

- Knowledge about common TCP and UDP ports and services (20, 21, 22, 23, 25, 53, 80, 110, 123, 139, 143, 161, 162, 389, 443, 465, 514, 636, 993, 995).

- Knowledge about the differences and major features of UDP, TCP and ICMP.

- Knowledge of the major differences between IPv4 and IPv6.

- Knowledge of the basic features of IPv6.

The following is a partial list of the used files, terms and utilities:

- /etc/services

- IPv4, IPv6

- Subnetting

- TCP, UDP, ICMP





109.2 Persistent network configuration


Weight: 4

Description: Candidates should be able to manage the persistent network configuration of a Linux host.

Key Knowledge Areas:

- Understand basic TCP/IP host configuration.

- Configure ethernet and wi-fi network using NetworkManager.

- Awareness of systemd-networkd.

The following is a partial list of the used files, terms and utilities:

- /etc/hostname

- /etc/hosts

- /etc/nsswitch.conf

- /etc/resolv.conf

- nmcli

- hostnamectl

- ifup

- ifdown





109.3 Basic network troubleshooting


Weight: 4

Description: Candidates should be able to troubleshoot networking issues on client hosts.

Key Knowledge Areas:

- Manually configure network interfaces, including viewing and changing the configuration of network interfaces using iproute2.

- Manually configure routing, including viewing and changing routing tables and setting the default route using iproute2.

- Debug problems associated with the network configuration.

The following is a partial list of the used files, terms and utilities:

- ip

- hostname

- ss

- ping

- ping6

- traceroute

- traceroute6

- tracepath

- tracepath6

- netcat

- ifconfig

- netstat

- route





109.4 Configure client side DNS


Weight: 2

Description: Candidates should be able to configure DNS on a client host.

Key Knowledge Areas:

- Query remote DNS servers.

- Configure local name resolution and use remote DNS servers.

- Modify the order in which name resolution is done.

- Debug errors related to name resolution.

- Awareness of systemd-resolved.

The following is a partial list of the used files, terms and utilities:

- /etc/hosts

- /etc/resolv.conf

- /etc/nsswitch.conf

- host

- dig

- getent





Topic 110: Security




110.1 Perform security administration tasks


Weight: 3

Description: Candidates should know how to review system configuration to ensure host security in accordance with local security policies.

Key Knowledge Areas:

- Audit a system to find files with the suid/sgid bit set.

- Set or change user passwords and password aging information.

- Being able to use nmap and netstat to discover open ports on a system.

- Set up limits on user logins, processes and memory usage.

- Determine which users have logged in to the system or are currently logged in.

- Basic sudo configuration and usage.

The following is a partial list of the used files, terms and utilities:

- find

- passwd

- fuser

- lsof

- nmap

- chage

- netstat

- sudo

-/etc/sudoers

- su

- usermod

- ulimit

- who, w, last





110.2 Setup host security


Weight: 3

Description: Candidates should know how to set up a basic level of host security.

Key Knowledge Areas:

- Awareness of shadow passwords and how they work.

- Turn off network services not in use.

- Understand the role of TCP wrappers.

The following is a partial list of the used files, terms and utilities:

- /etc/nologin

- /etc/passwd

- /etc/shadow

- /etc/xinetd.d/

- /etc/xinetd.conf

- systemd.socket

- /etc/inittab

- /etc/init.d/

- /etc/hosts.allow

- /etc/hosts.deny





110.3 Securing data with encryption


Weight: 4

Description: The candidate should be able to use public key techniques to secure data and communication.

Key Knowledge Areas:

- Perform basic OpenSSH 2 client configuration and usage.

- Understand the role of OpenSSH 2 server host keys.

- Perform basic GnuPG configuration, usage and revocation.

- Use GPG to encrypt, decrypt, sign and verify files.

- Understand SSH port tunnels (including X11 tunnels).

The following is a partial list of the used files, terms and utilities:

- ssh

- ssh-keygen

- ssh-agent

- ssh-add

- ~/.ssh/id_rsa and id_rsa.pub

- ~/.ssh/id_dsa and id_dsa.pub

- ~/.ssh/id_ecdsa and id_ecdsa.pub

- ~/.ssh/id_ed25519 and id_ed25519.pub

- /etc/ssh/ssh_host_rsa_key and ssh_host_rsa_key.pub

- /etc/ssh/ssh_host_dsa_key and ssh_host_dsa_key.pub

- /etc/ssh/ssh_host_ecdsa_key and ssh_host_ecdsa_key.pub

- /etc/ssh/ssh_host_ed25519_key and ssh_host_ed25519_key.pub

- ~/.ssh/authorized_keys

- ssh_known_hosts

- gpg

- gpg-agent

- ~/.gnupg/




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102-500
LPIC-1 test 102, Part 2 of 2, version 5.0
https://killexams.com/pass4sure/exam-detail/102-500
Question: 1
Which command makes the shell variable named VARIABLE visible to subshells?
A . export $VARIABLE
B . export VARIABLE
C . set $VARIABLE
D . set VARIABLE
E . env VARIABLE
Answer: B
Question: 2
When the command echo $ outputs 1, which of the following statements is true?
A . It is the process ID of the echo command.
B . It is the process ID of the current shell.
C . It is the exit value of the command executed immediately before echo.
D . It is the exit value of the echo command.
Answer: C
Question: 3
Question: 4
What output will the following command produce?
seq 1 5 20
A . 1 6 11 16
B . 1 5 10 15
C . 1 2 3 4
D . 2 3 4 5
E . 5 10 15 20
Answer: A
Question: 5
CORRECT TEXT
What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any
path.)
Answer: xorg.conf
Question: 6
Which command will set the local machines timezone to UTC?
A . cat UTC > /etc/timezone
B . ln -s /usr/share/zoneinfo/UTC /etc/localtime
C . date timezone=UTC
D . mv /usr/timezone/UTC /etc
Answer: B
Question: 7
What keyword is missing from this code sample of a shell script?
____ i in *.txt; do
echo $i
done
A . for
B . loop
C . until
D . while
Answer: A
Question: 8
How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)
A . The /etc/crontab file can specify a year field.
B . A normal crontab file must be installed with the crontab command.
C . A normal crontab file allows for environment variable substitution.
D . The /etc/crontab file has a user field for commands.
Answer: B,D
Question: 9
What is the purpose of the Sticky Keys feature in X?
A . To assist users who have difficulty holding down multiple keys at once
B . To prevent repeated input of a single character if the key is held down
C . To ignore brief keystrokes according to a specified time limit
D . To repeat the input of a single character
Answer: A
Question: 10
Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct answers.)
A . Start and prepare the desktop environment for the user.
B . Configure additional devices like new monitors or projectors when they are attached.
C . Handle the login of a user.
D . Lock the screen when the user was inactive for a configurable amount of time.
E . Create an X11 configuration file for the current graphic devices and monitors.
Answer: A,C
Question: 11
On a system running the KDE Display Manager, when is the /etc/kde4/kdm/Xreset script automatically executed?
A . When KDM starts
B . When a users X session exits
C . When KDM crashes
D . When X is restarted
E . When X crashes
Answer: B
Question: 12
What is the purpose of the file /etc/profile?
A . It contains the welcome message that is displayed after login.
B . It contains security profiles defining which users are allowed to log in.
C . It contains environment variables that are set when a user logs in.
D . It contains default application profiles for users that run an application for the first time.
Answer: C
Question: 13
CORRECT TEXT
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.)
Answer: xdm
Question: 14
Which commands can you use to change a users account aging information? (Choose THREE correct answers.)
A . usermod
B . passwd
C . chattr
D . chage
E . chsh
Answer: A,B,D
Question: 15
Which command can be used to delete a group from a Linux system?
A . groupdel
B . groupmod
C . groups
D . groupedit
Answer: A
Question: 16
For accessibility assistance, which of the following programs is an on-screen keyboard?
A . xkb
B . atkb
C . GOK
D . xOSK
Answer: C
Question: 17
Question: 18
To prevent a specific user from scheduling tasks with at, what should the administrator do?
A . Add the specific user to /etc/at.allow file.
B . Add the specific user to [deny] section in the /etc/atd.conf file.
C . Add the specific user to /etc/at.deny file.
D . Add the specific user to nojobs group.
E . Run the following: atd deny [user].
Answer: C
Question: 19
CORRECT TEXT (Topic 3)
Which command is used to add an empty group to the system? (Specify ONLY the command without any path or
parameters.)
Answer: groupadd, /usr/sbin/groupadd
Question: 20
Which command allows you to make a shell variable visible to subshells?
A . export $VARIABLE
B . export VARIABLE
C . set $VARIABLE
D . set VARIABLE
E . env VARIABLE
Answer: B
Question: 21
On a system using shadowed passwords, the most correct permissions for /etc/passwd are ___ and the most correct
permissions for /etc/shadow are _________.
A . -rw-r, -r
B . -rw-rr, -rrr
C . -rw-rr, -r
D . -rw-rrw-, -rr
E . -rw-, -r
Answer: C
Question: 22
Which file used by XDM specifies the default wallpaper?
A . /etc/X11/xdm/Xsetup
B . /etc/X11/xdm.conf
C . /etc/X11/xdm/Defaults
D . /etc/X11/defaults.conf
Answer: A
Question: 23
Which of the following commands shows the current color depth of the X Server?
A . xcd
B . xcdepth
C . xwininfo
D . xcolordepth
E . cat /etc/X11
Answer: C
Question: 24
Which TWO statements about crontab are true?
A . Every user may have their own crontab.
B . Changing a crontab requires a reload/restart of the cron daemon.
C . The cron daemon reloads crontab files automatically when necessary.
D . hourly is the same as "0 * * * *".
E . A cron daemon must run for each existing crontab.
Answer: A,C
Question: 25
You are looking into a new script you received from your senior administrator. In the very first line you notice a #!
followed by a file path.
This indicates that:
A . The file at that location was used to make the script.
B . This script provides identical functionality as the file at that location.
C . This script will self-extract into a file at that location.
D . The program at that location will be used to process the script.
Answer: D
Question: 26
What is the difference between the commands test -e path and test -f path?
A . They are equivalent options with the same behaviour.
B . The -f option tests for a regular file. The -e option tests for an empty file.
C . Both options check the existence of the path. The -f option also confirms that it is a regular file.
D . The -f option tests for a regular file. The -e option tests for an executable file.
Answer: C
Question: 27
When the command echo $$ outputs 12942, what is the meaning of 12942?
A . It is the process ID of the echo command.
B . It is the process ID of the current shell.
C . It is the process ID of the last command executed.
D . It is the process ID of the last command which has been placed in the background.
Answer: B
Question: 28
X is running okay but youre concerned that you may not have the right color depth set.
What single command will show you the running color depth while in X?
A . xcd
B . xcdepth
C . xwininfo
D . xcolordepth
E . cat /etc/X11
Answer: C
Question: 29
What output will the command seq 10 produce?
A . A continuous stream of numbers increasing in increments of 10 until stopped.
B . The numbers 1 through 10 with one number per line.
C . The numbers 0 through 9 with one number per line.
D . The number 10 to standard output.
Answer: B
Question: 30
Which commands can be used to change a users account aging information? (Choose THREE correct answers.)
A . usermod
B . passwd
C . chattr
D . chage
E . chsh
Answer: A,B,D
Question: 31
Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in
/etc/shadow?
A . *
B .
C . s
D . x
Answer: D
Question: 32
What is the main difference between the batch and at commands?
A . The batch command will run multiple times.The at command will only run once.
B . The batch command will run when system load is low. The at command runs at a specific time.
C . The at command reads commands from standard input. The batch command requires a command line argument.
D . The at command e-mails results to the user. The batch command logs results to syslog.
Answer: B
Question: 33
Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?
A . 0 * * * 30 myscript
B . 30 * * * 6 myscript
C . 30 0 * * 0 myscript
D . 30 0-23 * * 0 myscript
E . 0 0-23 * * 30 myscript
Answer: D
Question: 34
Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)
A . ~/.bashconf
B . ~/.bashrc
C . ~/.bashdefaults
D . ~/.bash_etc
E . ~/.bash_profile
Answer: B,E
Question: 35
Which of the following commands lists all defined variables and functions within Bash?
A . env
B . set
C . env -a
D . echo $ENV
Answer: B
Question: 36
What is the conventional purpose of Linux UIDs that are lower than 100?
A . They are reserved for super user accounts.
B . They are reserved for the system admin accounts.
C . They are reserved for system accounts.
D . They are unused, aside from 0, because they are targets of exploits.
E . They are used to match with GIDs in grouping users.
Answer: C
Question: 37
CORRECT TEXT (Topic 1)
What command displays all aliases defined in the current shell? (Specify the command without any path information)
Answer: alias, alias -p
Question: 38
How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?
A . unset -v FOOBAR;./myscript
B . set -a FOOBAR="";./myscript
C . env -u FOOBA
D . /myscript
E . env -i FOOBA
F . /myscript
Answer: C
Question: 39
CORRECT TEXT (Topic 1)
What word is missing from the following SQL statement?
__________ count(*) from tablename;
(Please specify the missing word using lower-case letters only.)
Answer: select
Question: 40
Question: 41
CORRECT TEXT (Topic 1)
What word is missing from the following SQL statement?
insert into tablename ________(909, text);
(Please specify the missing word using lower-case letters only.)
Answer: VALUES, values
Question: 42
What benefit does an alias in bash provide?
A . It provides faster lookups for commands in the system directory.
B . It creates a local copy of a file from another directory.
C . It hides what command you are running from others.
D . It allows a string to be substituted for the first word of a simple command.
Answer: D
Question: 43
What output will the following command sequence produce?
echo 1 2 3 4 5 6 | while read a b c; do
echo result: $c $b $a;
done
A . result: 3 4 5 6 2 1
B . result: 1 2 3 4 5 6
C . result: 6 5 4
D . result: 6 5 4 3 2 1
E . result: 3 2 1
Answer: A
Question: 44
Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the
table orders?
A . SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;
B . SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;
C . COUNT(SELECT order_type FROM orders);
D . SELECT COUNT(*) FROM orders ORDER BY order_type;
E . SELECT AUTO_COUNT FROM orders COUNT order_type;
Answer: B
Question: 45
Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a
supplied criteria for the values in the records?
A . CASE
B . FROM
C . WHERE
D . IF
Answer: C
Question: 46
A French user has installed the French language pack, but currencies are still being displayed with a leading $ sign in
his spreadsheets.
What must be done to fix this?
A . Alter the locale.
B . Set the timezone correctly.
C . Edit /etc/currency.
D . Reinstall the French language pack.
Answer: A
Question: 47
CORRECT TEXT (Topic 3)
Which environment variable should be set in order to change the time zone for the commands run from within the
environment variables scope? (Specify the variable name only.)
Answer: TZ
Question: 48
Which of the following configuration files should be modified to set default shell variables for all users?
A . /etc/bashrc
B . /etc/profile
C . ~/.bash_profile
D . /etc/.bashrc
Answer: B
Question: 49
Which of the following lines is an example of a correct setting for the DISPLAY environment variable?
A . hostname:displayname
B . hostname:displaynumber
C . hostname/displayname
D . hostname/displaynumber
E . hostname
Answer: B
Question: 50
Which of the following SQL statements will select the fields name and address from the contacts table?
A . SELECT (name, address) FROM contacts;
B . SELECT (name address) FROM contacts;
C . SELECT name, address FROM contacts;
D . SELECT name address FROM contacts;
Answer: C
Question: 51
Which of the following words is used to restrict the records that are returned from a SELECT query based on a
supplied criteria for the values in the records?
A . LIMIT
B . FROM
C . WHERE
D . IF
Answer: C
Question: 52
Which of the following commands should be added to /etc/bash_profile in order to change the language of messages
for an internationalized program to Portuguese (pt)?
A . export LANGUAGE="pt"
B . export MESSAGE="pt"
C . export UI_MESSAGES="pt"
D . export LC_MESSAGES="pt"
E . export ALL_MESSAGES="pt"
Answer: D
Question: 53
Which of the following commands can be used to convert text files in one character encoding to another character
encoding?
A . cat
B . convert
C . dd
D . iconv
E . utf2utf
Answer: D
Question: 54
Why is the xhost program considered dangerous to use?
A . It makes it difficult to uniquely identify a computer on the network.
B . It allows easy access to your X server by other users.
C . It logs sensitive information to syslog.
D . It makes your computer share network resources without any authentication.
E . It is a graphical DNS tool with known exploits.
Answer: B
Question: 55
How is a display manager started?
A . It is started by a user using the command startx.
B . It is started like any other system service by the init system.
C . It is started by inetd when a remote hosts connects to the X11 port.
D . It is started automatically when a X11 user logs in to the system console.
Answer: B
Question: 56
What is the purpose of the iconv command?
A . It converts bitmap images from one format to another such as PNG to JPE
C . It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS).
D . It displays additional meta information from icon files ending in .ico.
E . It changes the mode of an inode in the ext4 file system.
F . It converts files from one character encoding to another.
Answer: E
Question: 57
CORRECT TEXT
An administrator wants to determine the geometry of a particular window in X, so she issues the __________ -metric
command and then clicks on the window.
Answer: /usr/bin/xwininfo, xwininfo
Question: 58
Which file contains the date of the last change of a users password?
A . /etc/gshadow
B . /etc/passwd
C . /etc/pwdlog
D . /etc/shadow
E . /var/log/shadow
Answer: D
Question: 59
What is true regarding the command userdel force remove bob? (Choose TWO correct answers.)
A . The user bob is removed from the systems user database.
B . The user bobs home directory is removed.
C . The locate database is updated to drop files owned by bob.
D . All files owned by bob are remove from all mounted filesystems.
E . In case bob was the last member of a group, that group is deleted.
Answer: A,B
Question: 60
CORRECT TEXT
Which command can be used to investigate the properties for a particular window in X by clicking that window?
(Specify ONLY the command without any path or parameters.)
Answer: /usr/bin/xwininfo, xwininfo
Question: 61
CORRECT TEXT (Topic 3)
The systems timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full
path to the directory, without any country information)
Answer: /usr/share/zoneinfo/
Question: 62
CORRECT TEXT
By default, the contents of which directory will be copied to a new users home directory when the account is created
by passing the -m option to the useradd command? (Specify the full path to the directory.)
Answer: /etc/skel
Question: 63
Which of the following is the best way to list all defined shell variables?
A . env
B . set
C . env -a
D . echo $ENV
Answer: B
Question: 64
Which of the following files assigns a user to its primary group?
A . /etc/pgroup
B . /etc/shadow
C . /etc/group
D . /etc/passwd
E . /etc/gshadow
Answer: D
Question: 65
CORRECT TEXT (Topic 3)
The ________ command is used to add a group to the system.
Answer: groupadd, /usr/sbin/groupadd
Question: 66
CORRECT TEXT (Topic 1)
Which directory in /etc is used to keep a sample copy of files and directories for when a new user has a home
directory created? (Please provide the full path)
Answer: /etc/skel, /etc/skel/
Question: 67
Your senior administrator asked you to change the default background of his machine, which uses XDM.
Which file would you edit to achieve this?
A . /etc/X11/xdm/Xsetup
B . /etc/X11/xdm.conf
C . /etc/X11/xdm/Defaults
D . /etc/X11/defaults.conf
Answer: A
Question: 68
Which of the following are requirements in order to run a shell script like a regular command from anywhere in the
filesystem? (Choose THREE correct answers.)
A . The user issuing the command must be in the group script.
B . The script file must be found in the $PAT
D . The script file must have the executable permission bit set.
E . The script must begin with a shebang-line (#!) that points to the correct interpreter.
F . The file system on which the script resides must be mounted with the option scripts.
Answer: B,C,D
Question: 69
CORRECT TEXT (Topic 3)
Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)
Answer: /etc/at.deny
Question: 70
What is the purpose of a screen reader?
A . It reads text displayed on the screen to blind or visually impaired people.
B . It reads the parameters of the attached monitors and creates an appropriate X11 configuration.
C . It displays lines and markers to help people use speed reading techniques.
D . It manages and displays files that contain e-books.
Answer: A
Question: 71
Which of the following tasks can the date command accomplish? (Choose two.)
A . Set the systems date and time.
B . Set the systems date but not the time.
C . Calculate the time span between two dates.
D . Print a calendar for a month or a year.
E . Display time in a specific format.
Answer: AE
Question: 72
FILL BLANK
Which command included in systemd supports selecting messages from the systemd journal by criteria such as time or
unit name? (Specify only the command without any path or parameters.)
Answer: journalctl
Question: 73
What is the correct routing match to reach 172.16.1.5/32?
A . 172.16.1.0/26
B . 172.16.1.0/25
C . 172.16.1.0/24
D . the default route
Answer: A
Question: 74
Which of the following protocols is related to the term open relay?
A . SMTP
B . POP3
C . NTP
D . IMAP
E . LDAP
Answer: A
Question: 75
Which of the following files assigns a user to its primary group?
A . /etc/pgroup
B . /etc/shadow
C . /etc/passwd
D . /etc/group
E . /etc/gshadow
Answer: C
Question: 76
FILL BLANK
Which command is used to set the hostname of the local system? (Specify only the command without any path or
parameters.)
Answer: hostname
Question: 77
How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?
B. 14
C. 30
D. 62
E. 126
Answer: D
Question: 78
FILL BLANK
Which command, available with all sendmail-compatible MTAs, is used to list the contents of the MTAs mail queue?
(Specify only the command without any path or parameters.)
Answer: mailq
Question: 79
Which of the following is a valid IPv6 address?
A . 2001:db8:0g21::1
B . 2001::db8:4581::1
C . 2001:db8:3241::1
D . 2001%db8%9990%%1
E . 2001.db8.819f..1
Answer: C
Question: 80
Which of the following steps prevents a user from obtaining an interactive login session?
A . Setting the UID for the user to 0.
B . Running the command chsh Cs /bin/false with the user name.
C . Removing the user from the group staff.
D . Adding the user to /etc/noaccess.
E . Creating a .nologin file in the users home directory.
Answer: B
Question: 81
What is true about the file /etc/localtime?
A . It is a plain text file containing a string such as Europe/Berlin
B . It is created and maintained by the NTP service based on the location of the systems IP address.
C . It is a symlink to /sys/device/clock/ltime and always contains the current local time.
D . After changing this file, newtzconfighas to be run to make the changes effective.
E . It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.
Answer: E
Question: 82
Which of the following changes may occur as a consequence of using the command ip? (Choose three.)
A . Network interfaces may become active or inactive.
B . New name servers may be added to the resolver configuration.
C . The systems host name may change.
D . IP addresses may change.
E . The routing table may change.
Answer: ADE
Question: 83
Which of the following connection types, as seen in nmcli connection show, may exist in NetworkManager? (Choose
three.)
A . tcp
B . ethernet
C . wifi
D . ipv6
E . bridge
Answer: BCE
Question: 84
FILL BLANK
What is the top-level directory which contains the configuration files for CUPS? (Specify the full path to the
directory.)
Answer: /etc/cups/ cups-files.conf
Question: 85
Which of the following statements is true regarding systemd timer units?
A . Timer units can only be defined within a service units file.
B . The command executed by the timer is specified in the timer units [Cmd] section.
C . A dedicated system service, systemd-cron, handles the execution of timer units.
D . Timer units only exist in the system scope and are not available for users.
E . Each systemd timer unit controls a specific systemd service unit.
Answer: E
Question: 86
Which of the following statements is valid in the file /etc/nsswitch.conf?
A . multi on
B . 192.168.168.4 dns-server
C . namespaces: net mount procs
D . include /etc/nsswitch.d/
E . hosts: files dns
Answer: E
Question: 87
Which of the following commands shows all active systemd timers?
A . systemctl-timer show
B . timectl list
C . systemctl Ct
D . systemctl list-timers
E . timeq
Answer: D
Question: 88
Which option in the chrony configuration file changes the initial interval of polls to a NTP server in order to speed up
the initial synchronization?
A . iburst
B . quickstart
C . fast
D . fsync
E . flood
Answer: A
Question: 89
Which of the following statements is true if the UID of a regular user is identical to the GID of a group?
A . UID have precedence over GIDs, therefore the user is available while the group doesnt.
B . The user as well as the group are not available to avoid ambiguity due to the ID conflict.
C . UIDs and GIDs are independent of each other, therefore the user as well as the group are still available.
D . The user is the only member of the group, even if the group configuration contains other members.
E . GIDs have precedence over UIDs, therefore the group is available while the user isnt.
Answer: C
Question: 90
Which of the following comparison operators for test work on elements in the file system? (Choose two.)
A . Cz
B . Ceq
C . Cd
D . Cf
E . Clt
Answer: CD
Question: 91
Which of the following commands displays all environment and shell variables?
A . getargs
B . lsenv
C . ls
D . env
E . lsshell
Answer: D
Question: 92
Which of the following commands should be executed when starting a login shell in order to change the language of
messages for an internationalized program to Portuguese (pt)?
A . export LANGUAGE=pt
B . export LC_MESSAGES=pt
C . export UI_MESSAGES=pt
D . export MESSAGE=pt
E . export ALL_MESSAGES=pt
Answer: B
Question: 93
Refer to the exhibit.
If an IP phone in San Jose roams to New York, which two IP phone settings will be modified by Device Mobility so
that the phone can place and receive calls in New York? (Choose two.)
A . The physical locations are not different, so the configuration of the phone is not modified.
B . The physical locations are different, so the roaming-sensitive parameters of the roaming device pool are applied.
C . The device mobility groups are the same, so the Device Mobility-related settings are applied in addition
to the roaming-sensitive parameters.
D . The Device Mobility information is associated with one or more device pools other than the home device pool of
the phone, so one of the associated device pools is chosen based on a round-robin load-sharing algorithm.
E . The Device Mobility information is associated with the home device pool of the phone, so the phone is considered
to be in its home location. Device Mobility will reconfigure the roaming-sensitive settings of the phone.
Answer: BC
Question: 94
FILL BLANK
Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full
name of the file, including path.)
Answer: crontab
Question: 95
FILL BLANK
Which command included in NetworkManager is a curses application which provides easy acces to the
NetworkManager on the command line? (Specify only the command without any path or parameters.)
Answer: nmtui
Question: 96
What is true about the Hop Limit field in the IPv6 header?
A . The field is not changed during the transport of a package.
B . The field is transmitted within a hop-by-hop extension header.
C . Each router forwarding the packet increases the fields value.
D . Each router forwarding the packet decreases the fields value.
E . For multicast packages, the fields value is always 1.
Answer: D
Question: 97
Which of the following entries in /etc/syslog.conf writes all mail related events to the file /var/log/maillog and sends
all critical events to the remote server logger.example.com?
A . mail.* /var/log/maillog
mail,crit @logger.example.org
B . mail.* /var/log/maillog
mail.crit syslog://logger.example.org
C . mail /var/log/maillog
mail.crit @logger.example.org
D . mail.* /var/log/maillog
mail.crit @logger.example.org
E . mail * /var/log/maillog
mail crit @logger.example.org
Answer: D
Question: 98
Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing?
(Choose three.)
A . 10.0.0.0/8
B . 127.0.0.0/8
C . 169.255.0.0/16
D . 172.16.0.0/12
E . 192.168.0.0/16
Answer: ADE
Question: 99
FILL BLANK
Which option in the /etc/ntp.conffile specifies an external NTP source to be queried for time information? (Specify
only the option without any values or parameters.)
Answer: server
Question: 100
FILL BLANK
Which command must be run after adding a new email alias to the configuration in order to make this change
effective? (Specify the command without any path but including all required parameters.)
Answer: newaliases
Question: 101
Which of the following information is stored in /etc/shadowfor each user?
A . The timestamp of the users last login
B . The users private SSH keys
C . The hashed password of the user
D . The numerical user ID (UID)
E . The path to the users home directory
Answer: C
Question: 102
On a Linux workstation, the route command takes a long time before printing out the routing table.
Which of the following errors does that indicate?
A . The local routing information may be corrupted and must be re-validated using a routing protocol.
B . One of the routers in the routing table is not available which causes the automatic router failure detection
mechanism (ARF-D) to wait for a timeout.
C . There may accidentally be more than one default router in which case a default router election has to be done on
the network in order to choose one router as the default.
D . The Linux Kernel Routing Daemon (LKRD) is not running and should be started using its init script or systemd
unit.
E . DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may
run into a timeout.
Answer: E
Question: 103
Which of the following statements about systemd-journald are true? (Choose three.)
A . It is incompatible with syslog and cannot be installed on a system using regular syslog.
B . It only processes messages of systemd and not messages of any other tools.
C . It can pass log messages to syslog for further processing.
D . It maintains metadata such as _UID or _PID for each message.
E . It supports syslog facilities such as kern, user, and auth.
Answer: CDE
Question: 104
Which of the following nmcli subcommands exist? (Choose two.)
A . nmcli ethernet
B . nmcli device
C . nmcli wifi
D . nmcli address
E . nmcli connection
Answer: BE
Question: 105
Which of the following commands lists all queued print jobs?
A . lpd
B . lpr
C . lp
D . lsq
E . lpq
Answer: E
Question: 106
What can be specified with useradd? (Choose two.)
A . Commands the user can run using sudo.
B . The absolute path to the users home directory.
C . Which printers are available for the new user.
D . The SSH keys used to login to the new account.
E . The numeric user ID (UID) of the user.
Answer: BE
Question: 107
Which of the following commands configure network interfaces based on the systems existing distribution-specific
configuration files? (Choose two.)
A . ifconf
B . ifdown
C . ifpause
D . ifstart
E . ifup
Answer: BE
Question: 108
Which of the following commands is used to rotate, compress, and mail system logs?
A . logrotate
B . striplog
C . syslogd C-rotate
D . rotatelog
E . logger
Answer: A
Question: 109
Which of the following fields are available in the standard format of both the global /etc/crontab file as well as in user-
specific crontab files? (Choose two.)
A . Year
B . Minute
C . Username
D . Effective group ID
E . Command
Answer: BD
Question: 110
Why is the correct configuration of a systems time zone important?
A . Because the timezone is included in checksum calculations and timezone changes invalidate existing checksums.
B . Because the time zone is saved as part of the modification times of files and cannot be changed after a file is
created.
C . Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone.
D . Because NTP chooses servers nearby based on the configured time zone.
E . Because the conversion of Unix timestamps to local time relies on the time zone configuration.
Answer: E
Question: 111
Which if the following tools, used for DNS debugging, reports not only the response from the name sever but also
details about the query?
A . dnsq
B . hostname
C . dig
D . dnslookup
E . zoneinfo
Answer: C
Question: 112
FILL BLANK
What command, depending on its options, can display the open TCP connections, the routing tables, as well as
network interface statistics? (Specify only the command without any path or parameters.)
Answer: netstat
Question: 113
Which of the following connection types, as seen in nmcli connection show, may exist in NetworkManager? (Choose
three.)
A . tcp
B . ethernet
C . wifi
D . ipv6
E . bridge
Answer: B,C,E
Question: 114
How is the MRU for a multilink bundle determined?
A . It is manually configured on all physical interfaces of a multilink bundle
B . It is negotiated by NCP
C . It is manually configured on the multilink bundle
D . It is negotiated by IPCP
E . It is negotiated by LCP
Answer: E
Question: 115
What can be specified with useradd? (Choose two.)
A . Commands the user can run using sudo.
B . The absolute path to the users home directory.
C . Which printers are available for the new user.
D . The SSH keys used to login to the new account.
E . The numeric user ID (UID) of the user.
Answer: B,E
Question: 116
CORRECT TEXT
Which command included in NetworkManager is a curses application which provides easy acces to the
NetworkManager on the command line? (Specify only the command without any path or parameters.)
Answer: nmtui
Question: 117
On a Linux workstation, the route command takes a long time before printing out the routing table.
Which of the following errors does that indicate?
A . The local routing information may be corrupted and must be re-validated using a routing protocol.
B . One of the routers in the routing table is not available which causes the automatic router failure detection
mechanism (ARF-D) to wait for a timeout.
C . There may accidentally be more than one default router in which case a default router election has to be done on
the network in order to choose one router as the default.
D . The Linux Kernel Routing Daemon (LKRD) is not running and should be started using its init script or systemd
unit.
E . DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may
run into a timeout.
Answer: E
Question: 118
CORRECT TEXT
Which command included in NetworkManager is a curses application which provides easy acces to the
NetworkManager on the command line? (Specify only the command without any path or parameters.)
Answer: nmtui
Question: 119
What can be specified with useradd? (Choose two.)
A . Commands the user can run using sudo.
B . The absolute path to the users home directory.
C . Which printers are available for the new user.
D . The SSH keys used to login to the new account.
E . The numeric user ID (UID) of the user.
Answer: B,E
Question: 120
Which of the following changes may occur as a consequence of using the command ip? (Choose three.)
A . Network interfaces may become active or inactive.
B . New name servers may be added to the resolver configuration.
C . The systems host name may change.
D . IP addresses may change.
E . The routing table may change.
Answer: A,D,E
Question: 121
CORRECT TEXT
What command, depending on its options, can display the open TCP connections, the routing tables, as well as
network interface statistics? (Specify only the command without any path or parameters.)
Answer: netstat
Question: 122
Which of the following is a valid IPv6 address?
A . 2001:db8:0g21::1
B . 2001::db8:4581::1
C . 2001:db8:3241::1
D . 2001%db8%9990%%1
E . 2001.db8.819f..1
Answer: C
Question: 123
Which if the following tools, used for DNS debugging, reports not only the response from the name sever but also
details about the query?
A . dnsq
B . hostname
C . dig
D . dnslookup
E . zoneinfo
Answer: C
Question: 124
Which of the following nmcli subcommands exist? (Choose two.)
A . nmcli ethernet
B . nmcli device
C . nmcli wifi
D . nmcli address
E . nmcli connection
Answer: B,E
Question: 125
Which of the following statements is valid in the file /etc/nsswitch.conf?
A . multi on
B . 192.168.168.4 dns-server
C . namespaces: net mount procs
D . include /etc/nsswitch.d/
F . hosts: files dns
Answer: E
Question: 126
Which of the following commands should be executed when starting a login shell in order to change the language of
messages for an internationalized program to Portuguese (pt)?
A . export LANGUAGE=pt
B . export LC_MESSAGES=pt
C . export UI_MESSAGES=pt
D . export MESSAGE=pt
E . export ALL_MESSAGES=pt
Answer: B
Question: 127
Which of the following tasks can the date command accomplish? (Choose two.)
A . Set the systems date and time.
B . Set the systems date but not the time.
C . Calculate the time span between two dates.
D . Print a calendar for a month or a year.
E . Display time in a specific format.
Answer: A,E
Question: 128
What is true about the Hop Limit field in the IPv6 header?
A . The field is not changed during the transport of a package.
B . The field is transmitted within a hop-by-hop extension header.
C . Each router forwarding the packet increases the fields value.
D . Each router forwarding the packet decreases the fields value.
E . For multicast packages, the fields value is always 1.
Answer: D
Question: 129
What is true about the file /etc/localtime?
A . It is a plain text file containing a string such as Europe/Berlin
B . It is created and maintained by the NTP service based on the location of the systems IP address.
C . It is a symlink to /sys/device/clock/ltime and always contains the current local time.
D . After changing this file, newtzconfig has to be run to make the changes effective.
E . It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.
Answer: E
Question: 130
CORRECT TEXT
Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full
name of the file, including path.)
Answer: crontab
Question: 131
Which of the following statements is valid in the file /etc/nsswitch.conf?
A . multi on
B . 192.168.168.4 dns-server
C . namespaces: net mount procs
D . include /etc/nsswitch.d/
F . hosts: files dns
Answer: E
Question: 132
Which of the following commands shows all active systemd timers?
A . systemctl-timer show
B . timectl list
C . systemctl Ct
D . systemctl list-timers
E . timeq
Answer: D
Question: 133
Which of the following nmcli subcommands exist? (Choose two.)
A . nmcli ethernet
B . nmcli device
C . nmcli wifi
D . nmcli address
E . nmcli connection
Answer: B,E
Question: 134
Which of the following commands shows all active systemd timers?
A . systemctl-timer show
B . timectl list
C . systemctl Ct
D . systemctl list-timers
E . timeq
Answer: D
Question: 135
CORRECT TEXT
Which command is used to set the hostname of the local system? (Specify only the command without any path or
parameters.)
Answer: hostname
Question: 136
Which of the following tasks can the date command accomplish? (Choose two.)
A . Set the systems date and time.
B . Set the systems date but not the time.
C . Calculate the time span between two dates.
D . Print a calendar for a month or a year.
E . Display time in a specific format.
Answer: A,E
Question: 137
Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing?
(Choose three.)
A . 10.0.0.0/8
B . 127.0.0.0/8
C . 169.255.0.0/16
D . 172.16.0.0/12
E . 192.168.0.0/16
Answer: A,D,E
Question: 138
Which of the following fields are available in the standard format of both the global /etc/crontab file as well as in user-
specific crontab files? (Choose two.)
A . Year
B . Minute
C . Username
D . Effective group ID
E . Command
Answer: B,D
Question: 139
Which of the following commands should be executed when starting a login shell in order to change the language of
messages for an internationalized program to Portuguese (pt)?
A . export LANGUAGE=pt
B . export LC_MESSAGES=pt
C . export UI_MESSAGES=pt
D . export MESSAGE=pt
E . export ALL_MESSAGES=pt
Answer: B
Question: 140
Which of the following commands configure network interfaces based on the systems existing distribution-specific
Question: 141
Which of the following fields are available in the standard format of both the global /etc/crontab file as well as in user-
specific crontab files? (Choose two.)
A . Year
B . Minute
C . Username
D . Effective group ID
E . Command
Answer: B,D
Question: 142
On a Linux workstation, the route command takes a long time before printing out the routing table.
Which of the following errors does that indicate?
A . The local routing information may be corrupted and must be re-validated using a routing protocol.
B . One of the routers in the routing table is not available which causes the automatic router failure detection
mechanism (ARF-D) to wait for a timeout.
C . There may accidentally be more than one default router in which case a default router election has to be done on
the network in order to choose one router as the default.
D . The Linux Kernel Routing Daemon (LKRD) is not running and should be started using its init script or systemd
unit.
E . DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may
run into a timeout.
Answer: E
Question: 143
How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?
A . 6
B . 14
C . 30
D . 62
E . 126
configuration files? (Choose two.)
A . ifconf
B . ifdown
C . ifpause
D . ifstart
E . ifup
Answer: B,E
Question: 149
Which of the following statements is true regarding systemd timer units?
A . Timer units can only be defined within a service units file.
B . The command executed by the timer is specified in the timer units [Cmd] section.
C . A dedicated system service, systemd-cron, handles the execution of timer units.
D . Timer units only exist in the system scope and are not available for users.
E . Each systemd timer unit controls a specific systemd service unit.
Answer: E
Question: 150
Which of the following connection types, as seen in nmcli connection show, may exist in NetworkManager? (Choose
three.)
A . tcp
B . ethernet
C . wifi
D . ipv6
E . bridge
Answer: B,C,E
Question: 151
HOTSPOT
You have an Exchange Server organization. The organization contains four servers.
The servers configured as shown in the following table.
You plan to upgrade the organization to Exchange Server 2016.
You need to identify which servers have functionalities that can be fully achieved by using Exchange Server 2016.
What should you identify? To answer, select the appropriate options in the answer area.
Answer:
Question: 152
What is true about the file /etc/localtime?
A . It is a plain text file containing a string such as Europe/Berlin
B . It is created and maintained by the NTP service based on the location of the systems IP address.
C . It is a symlink to /sys/device/clock/ltime and always contains the current local time.
D . After changing this file, newtzconfig has to be run to make the changes effective.
E . It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.
Answer: E
Question: 153
Which of the following information is stored in /etc/shadow for each user?
A . The timestamp of the users last login
B . The users private SSH keys
C . The hashed password of the user
D . The numerical user ID (UID)
E . The path to the users home directory
Answer: C
Question: 154
Which of the following statements is true regarding systemd timer units?
A . Timer units can only be defined within a service units file.
B . The command executed by the timer is specified in the timer units [Cmd] section.
C . A dedicated system service, systemd-cron, handles the execution of timer units.
D . Timer units only exist in the system scope and are not available for users.
E . Each systemd timer unit controls a specific systemd service unit.
Answer: E
Question: 155
CORRECT TEXT
Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full
name of the file, including path.)
Answer: crontab
Question: 156
Which of the following is a valid IPv6 address?
A . 2001:db8:0g21::1
B . 2001::db8:4581::1
C . 2001:db8:3241::1
D . 2001%db8%9990%%1
E . 2001.db8.819f..1
Answer: C
Question: 157
How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?
A . 6
B . 14
C . 30
D . 62
E . 126
Answer: D
Question: 158
Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing?
(Choose three.)
A . 10.0.0.0/8
B . 127.0.0.0/8
C . 169.255.0.0/16
D . 172.16.0.0/12
E . 192.168.0.0/16
Answer: A,D,E
Question: 159
What is true about the Hop Limit field in the IPv6 header?
A . The field is not changed during the transport of a package.
B . The field is transmitted within a hop-by-hop extension header.
C . Each router forwarding the packet increases the fields value.
D . Each router forwarding the packet decreases the fields value.
E . For multicast packages, the fields value is always 1.
Answer: D
Question: 160
Which of the following information is stored in /etc/shadow for each user?
A . The timestamp of the users last login
B . The users private SSH keys
C . The hashed password of the user
D . The numerical user ID (UID)
E . The path to the users home directory
Answer: C
Question: 161
Which of the following statements is true if the UID of a regular user is identical to the GID of a group?
A . UID have precedence over GIDs, therefore the user is available while the group doesnt.
B . The user as well as the group are not available to avoid ambiguity due to the ID conflict.
C . UIDs and GIDs are independent of each other, therefore the user as well as the group are still available.
D . The user is the only member of the group, even if the group configuration contains other members.
E . GIDs have precedence over UIDs, therefore the group is available while the user isnt.
Answer: C
Question: 162
Which if the following tools, used for DNS debugging, reports not only the response from the name sever but also
details about the query?
A . dnsq
B . hostname
C . dig
D . dnslookup
E . zoneinfo
Answer: C
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