Free Lpi 102-500 Deutsch Practice Test & Real Exam Questions
Welche der folgenden Aufgaben werden von einem Display-Manager wie XDM oder KDM übernommen? (Wähle ZWEI richtige Antworten.)
Correct Answer: B,D
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Welcher Eintrag kann zur Datei syslog.conf hinzugefügt werden, damit alle Syslog-Meldungen, die von einem System generiert wurden, auf Konsole 12 angezeigt werden?
Correct Answer: C
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Mit welchem der folgenden Befehle werden Schlüssel vorab geladen und verwaltet, die für die automatische Authentifizierung beim Anmelden bei anderen Computern mithilfe von SSH verwendet werden?
Correct Answer: A
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Welchen Eintrag können Sie zur Datei syslog.conf hinzufügen, damit alle von Ihrem System generierten Syslog-Nachrichten an die virtuelle Konsole 12 gesendet werden?
Correct Answer: C
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Auf einem Linux-System mit aktivierten Shadow-Passwörtern enthält welche Datei im Dateisystem die Passwort-Hashes aller lokalen Benutzer? (Geben Sie den vollständigen Namen der Datei einschließlich des Pfads an.)
Correct Answer:
etcshadow
Explanation:
On a Linux system with shadow passwords enabled, the file that contains the password hashes of all local users is /etc/shadow. This file is a replacement for the password field in /etc/passwd, which is a world-readable file that contains basic information about users. The /etc/shadow file is not readable by regular users, and it stores the encrypted passwords (or hashes) of each user, along with other information such as password expiration dates, minimum and maximum password ages, and password warning periods. The /etc/shadow file has nine colon-delimited fields for each user:
Username: The name used when the user logs into the system.
Password: The encrypted password of the user, or a special character that indicates the password status. For example, an asterisk (*) means the account is locked, and an exclamation mark (!) means the password is expired.
Last Password Change: The date of the last password change, expressed as the number of days since January 1, 1970.
Minimum Password Age: The minimum number of days required between password changes. A zero means the password can be changed anytime.
Maximum Password Age: The maximum number of days the password is valid. After this number of days, the password must be changed. A zero means the password never expires.
Password Warning Period: The number of days before the password expires that the user will be warned. A zero means no warning is given.
Password Inactivity Period: The number of days after the password expires that the account will be disabled. A negative value means the account is never disabled.
Account Expiration Date: The date when the account will be disabled, expressed as the number of days since January 1, 1970. A zero means the account never expires.
Reserved Field: A field for future use.
The /etc/shadow file can be modified by using the commands passwd and chage, which are used to change the password and the password aging information of a user, respectively. The /etc/shadow file should not be edited directly, but always through the tools provided by the distribution. For more details, see the shadow manual page.
Reference:
LPIC-1 Exam 102 Objectives, Topic 110: Security, Subtopic 110.2: Use sudo to manage access to the root account, Weight: 2, Key Knowledge Areas: Configure sudo and sudoers. Use sudo to execute commands as another user.
LPIC-1 Exam 102 Learning Materials, Topic 110: Security, Subtopic 110.2: Use sudo to manage access to the root account, Section 110.2.1: sudo and sudoers, Page 3-5.
Explanation:
On a Linux system with shadow passwords enabled, the file that contains the password hashes of all local users is /etc/shadow. This file is a replacement for the password field in /etc/passwd, which is a world-readable file that contains basic information about users. The /etc/shadow file is not readable by regular users, and it stores the encrypted passwords (or hashes) of each user, along with other information such as password expiration dates, minimum and maximum password ages, and password warning periods. The /etc/shadow file has nine colon-delimited fields for each user:
Username: The name used when the user logs into the system.
Password: The encrypted password of the user, or a special character that indicates the password status. For example, an asterisk (*) means the account is locked, and an exclamation mark (!) means the password is expired.
Last Password Change: The date of the last password change, expressed as the number of days since January 1, 1970.
Minimum Password Age: The minimum number of days required between password changes. A zero means the password can be changed anytime.
Maximum Password Age: The maximum number of days the password is valid. After this number of days, the password must be changed. A zero means the password never expires.
Password Warning Period: The number of days before the password expires that the user will be warned. A zero means no warning is given.
Password Inactivity Period: The number of days after the password expires that the account will be disabled. A negative value means the account is never disabled.
Account Expiration Date: The date when the account will be disabled, expressed as the number of days since January 1, 1970. A zero means the account never expires.
Reserved Field: A field for future use.
The /etc/shadow file can be modified by using the commands passwd and chage, which are used to change the password and the password aging information of a user, respectively. The /etc/shadow file should not be edited directly, but always through the tools provided by the distribution. For more details, see the shadow manual page.
Reference:
LPIC-1 Exam 102 Objectives, Topic 110: Security, Subtopic 110.2: Use sudo to manage access to the root account, Weight: 2, Key Knowledge Areas: Configure sudo and sudoers. Use sudo to execute commands as another user.
LPIC-1 Exam 102 Learning Materials, Topic 110: Security, Subtopic 110.2: Use sudo to manage access to the root account, Section 110.2.1: sudo and sudoers, Page 3-5.
Welche der folgenden Aufgaben kann der Befehl date ausführen? (Wähle zwei.)
Correct Answer: A,E
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Sie prüfen ein neues Skript, das Sie von Ihrem Administrator erhalten haben. In der ersten Zeile sehen Sie ein #! gefolgt von einem Dateipfad. Dies zeigt an, dass:
Correct Answer: A
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Mit welchem der folgenden find-Befehle wird eine Liste der Dateien ausgegeben, deren Eigentümer root ist und in denen das SUID-Bit gesetzt ist
/ usr?
/ usr?
Correct Answer: B
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Welche der folgenden Aussagen trifft auf systemd Timer-Einheiten zu?
Correct Answer: B
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Wie lautet der Standardname der Konfigurationsdatei für den Xorg X11-Server? (Geben Sie den Dateinamen nur ohne Pfad an.)
Correct Answer:
xorgconf
Explanation:
The default name of the configuration file for the Xorg X11 server is xorg.conf. This file is used to store initial setup for X, such as settings for video cards, monitors, input devices, and other options. The Xorg X11 server is a display server that uses a configuration file called xorg.conf and files ending in the suffix .conf for its initial setup1. The xorg.conf file is typically located in /etc/X11/xorg.conf, but its location may vary across operating system distributions2. The xorg.conf file is not mandatory, as the Xorg X11 server can automatically configure most hardware and settings. However, it can be created and edited manually if needed3. Reference:
Xorg - ArchWiki
xorg.conf - Wikipedia
How to Configure X11 in Linux: 10 Steps (with Pictures) - wikiHow
Explanation:
The default name of the configuration file for the Xorg X11 server is xorg.conf. This file is used to store initial setup for X, such as settings for video cards, monitors, input devices, and other options. The Xorg X11 server is a display server that uses a configuration file called xorg.conf and files ending in the suffix .conf for its initial setup1. The xorg.conf file is typically located in /etc/X11/xorg.conf, but its location may vary across operating system distributions2. The xorg.conf file is not mandatory, as the Xorg X11 server can automatically configure most hardware and settings. However, it can be created and edited manually if needed3. Reference:
Xorg - ArchWiki
xorg.conf - Wikipedia
How to Configure X11 in Linux: 10 Steps (with Pictures) - wikiHow
Wo werden benutzerspezifische Crontabs gelagert?
Correct Answer: C
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