최신 102-500 Deutsch 무료덤프 - Lpi LPIC-1 Exam 102, Part 2 of 2, version 5.0 (102-500 Deutsch Version)
Welche der folgenden Situationen kann auftreten, wenn der Befehl ifconfig verwendet wird? (Wähle DREI richtige Antworten.)
정답: A,B,C
설명: (DumpTOP 회원만 볼 수 있음)
Welche der folgenden Dateien beeinflussen, falls vorhanden, das Verhalten der Bash-Shell? (Wähle ZWEI richtige Antworten.)
정답: B,D
설명: (DumpTOP 회원만 볼 수 있음)
Welche der folgenden Zeilen ist ein Beispiel für eine korrekte Einstellung für die Umgebungsvariable DISPLAY?
정답: A
설명: (DumpTOP 회원만 볼 수 있음)
Welche der folgenden Optionen kann der Befehl chage NICHT ändern?
정답: C
설명: (DumpTOP 회원만 볼 수 있음)
Welche Umgebungsvariable sollte festgelegt werden, um die Zeitzone für die Befehle zu ändern, die innerhalb des Bereichs der Umgebungsvariablen ausgeführt werden? (Geben Sie nur den Variablennamen an.)
정답:
TZ
Explanation:
The TZ environment variable is used to change the time zone for the commands run from within the environment variable's scope. It specifies the name of a time zone as defined in the /usr/share/zoneinfo directory or a custom time zone in the POSIX format12. The TZ variable can be set either globally in a shell profile file or locally in a shell session. For example, to set the time zone to America/New_York for the current shell session, one can use the following command:
export TZ=America/New_York
To verify the change, one can use the date command to display the current date and time according to the TZ variable. The TZ variable can also be used to run a single command with a different time zone without affecting the system's time zone. For example, to run the date command with the Asia/Tokyo time zone, one can use the following syntax:
TZ=Asia/Tokyo date
The TZ variable is useful for testing how applications behave in different time zones or for displaying the time in different locations34. Reference:
How to Set or Change the Time Zone in Linux | Linuxize
Linux / UNIX: TZ Environment Variable - nixCraft
Get Current System Time Zone in Linux | Baeldung on Linux
Setting the TZ Environment Variable on Linux | InterSystems Developer
Explanation:
The TZ environment variable is used to change the time zone for the commands run from within the environment variable's scope. It specifies the name of a time zone as defined in the /usr/share/zoneinfo directory or a custom time zone in the POSIX format12. The TZ variable can be set either globally in a shell profile file or locally in a shell session. For example, to set the time zone to America/New_York for the current shell session, one can use the following command:
export TZ=America/New_York
To verify the change, one can use the date command to display the current date and time according to the TZ variable. The TZ variable can also be used to run a single command with a different time zone without affecting the system's time zone. For example, to run the date command with the Asia/Tokyo time zone, one can use the following syntax:
TZ=Asia/Tokyo date
The TZ variable is useful for testing how applications behave in different time zones or for displaying the time in different locations34. Reference:
How to Set or Change the Time Zone in Linux | Linuxize
Linux / UNIX: TZ Environment Variable - nixCraft
Get Current System Time Zone in Linux | Baeldung on Linux
Setting the TZ Environment Variable on Linux | InterSystems Developer
Welcher der aufgeführten Wege ist der beste Weg, um die interaktive Anmeldung eines einzelnen Benutzers vorübergehend zu unterbrechen?
정답: D
설명: (DumpTOP 회원만 볼 수 있음)
Welche der folgenden Aussagen zu sytemd-journald sind wahr? (Wählen Sie drei aus.)
정답: A,B,D
설명: (DumpTOP 회원만 볼 수 있음)
Welches Wort fehlt in der folgenden SQL-Anweisung?
__________ count (*) from tablename;
(Bitte geben Sie das fehlende Wort nur in Kleinbuchstaben an.)
__________ count (*) from tablename;
(Bitte geben Sie das fehlende Wort nur in Kleinbuchstaben an.)
정답:
select
Explanation:
The missing word is select, which is the keyword used to query data from a table in SQL. The select statement has the following syntax:
select column_list from table_name where condition;
The column_list can be one or more columns separated by commas, or an asterisk () to indicate all columns. The table_name is the name of the table that contains the data. The where clause is optional and specifies a condition to filter the rows. The count() function is an aggregate function that returns the number of rows in the table or in a group. Therefore, the complete statement is:
select count(*) from tablename;
This statement will return the number of rows in the table named tablename. Reference: SQL COUNT() Function - W3Schools, SQL COUNT: The Ultimate Guide To SQL COUNT Function - SQL Tutorial, The SQL Count Function Explained With 7 Examples.
Explanation:
The missing word is select, which is the keyword used to query data from a table in SQL. The select statement has the following syntax:
select column_list from table_name where condition;
The column_list can be one or more columns separated by commas, or an asterisk () to indicate all columns. The table_name is the name of the table that contains the data. The where clause is optional and specifies a condition to filter the rows. The count() function is an aggregate function that returns the number of rows in the table or in a group. Therefore, the complete statement is:
select count(*) from tablename;
This statement will return the number of rows in the table named tablename. Reference: SQL COUNT() Function - W3Schools, SQL COUNT: The Ultimate Guide To SQL COUNT Function - SQL Tutorial, The SQL Count Function Explained With 7 Examples.
Welche Datei muss, falls vorhanden, alle Benutzer enthalten, die das Cron-Planungssystem verwenden dürfen? (Geben Sie den vollständigen Namen der Datei einschließlich Pfad an.)
정답:
crontab
Explanation:
The file /etc/cron.allow, if present, must contain all users that are allowed to use the cron scheduling system. This file is used to restrict the access to cron for security reasons. Only users listed in this file can create and edit their own crontab files using the crontab command. If the file does not exist, all users can use cron, unless the file /etc/cron.deny exists, which lists the users that are not allowed to use cron12. Reference: 1: Cron and Crontab usage and examples. 2: How to use cron in Linux.
Explanation:
The file /etc/cron.allow, if present, must contain all users that are allowed to use the cron scheduling system. This file is used to restrict the access to cron for security reasons. Only users listed in this file can create and edit their own crontab files using the crontab command. If the file does not exist, all users can use cron, unless the file /etc/cron.deny exists, which lists the users that are not allowed to use cron12. Reference: 1: Cron and Crontab usage and examples. 2: How to use cron in Linux.
Was ist wahr an der Datei / etc / localtime?
정답: A
설명: (DumpTOP 회원만 볼 수 있음)
Mit welchem der folgenden Befehle kann ein Benutzer aus einer Gruppe entfernt werden?
정답: E
설명: (DumpTOP 회원만 볼 수 있음)
Welches der folgenden Protokolle ist für den Zugriff auf den Grafikkartenausgang einer virtuellen Maschine vorgesehen?
정답: C
Wie kann einem bestimmten Benutzer die Planung von Aufgaben mit einem i. untersagt werden?
정답: C
Wie viele Bits wurden bei IPv6 für die Schnittstellenkennung einer Unicast-Adresse verwendet? (Geben Sie die Nummer nur mit Ziffern an.)
정답:
64
Explanation:
With IPv6, the interface identifier of an unicast address is typically a 64-bit value that is used to identify a host's network interface. The interface identifier can be derived from the MAC address of the network card, or it can be randomly generated or manually configured. The interface identifier is the rightmost 64 bits of the most commonly encountered address types, such as global unicast (2000::/3) and link-local (fe80::/10). The interface identifier is different from the network prefix, which is the leftmost bits of the address that indicate the network or subnet to which the host belongs. The network prefix can vary in length, depending on the address type and the subnetting scheme. The network prefix and the interface identifier are separated by a double colon (::) in the IPv6 address notation. For example, in the address 2001:db8:1234:5678:abcd:ef12:3456:7890, the network prefix is 2001:db8:1234:5678 and the interface identifier is abcd:ef12:3456:7890. Reference: https://study-ccna.com/ipv6-interface-identifier/
https://networklessons.com/ipv6/ipv6-eui-64-explained
Explanation:
With IPv6, the interface identifier of an unicast address is typically a 64-bit value that is used to identify a host's network interface. The interface identifier can be derived from the MAC address of the network card, or it can be randomly generated or manually configured. The interface identifier is the rightmost 64 bits of the most commonly encountered address types, such as global unicast (2000::/3) and link-local (fe80::/10). The interface identifier is different from the network prefix, which is the leftmost bits of the address that indicate the network or subnet to which the host belongs. The network prefix can vary in length, depending on the address type and the subnetting scheme. The network prefix and the interface identifier are separated by a double colon (::) in the IPv6 address notation. For example, in the address 2001:db8:1234:5678:abcd:ef12:3456:7890, the network prefix is 2001:db8:1234:5678 and the interface identifier is abcd:ef12:3456:7890. Reference: https://study-ccna.com/ipv6-interface-identifier/
https://networklessons.com/ipv6/ipv6-eui-64-explained
Welcher Befehl setzt die Zeitzone des lokalen Computers auf UTC?
정답: D
설명: (DumpTOP 회원만 볼 수 있음)
Welcher im NetworkManager enthaltene Befehl ist eine Curses-Anwendung, die einen einfachen Zugriff auf den NetworkManager über die Befehlszeile ermöglicht? (Geben Sie nur den Befehl ohne Pfad oder Parameter an.)
정답:
nmtui
Explanation:
The command nmtui is a curses application that provides easy access to the NetworkManager on the command line. It is included in the networkmanager package, along with nmcli, which is another command line interface for NetworkManager. nmtui allows the user to view, edit, activate and deactivate network connections, as well as set the system hostname. It has a simple and user-friendly interface that can be navigated with the keyboard or mouse12. Reference: 1: Wireless Network Manager command line ncurses GUI. 2: NetworkManager - ArchWiki.
Explanation:
The command nmtui is a curses application that provides easy access to the NetworkManager on the command line. It is included in the networkmanager package, along with nmcli, which is another command line interface for NetworkManager. nmtui allows the user to view, edit, activate and deactivate network connections, as well as set the system hostname. It has a simple and user-friendly interface that can be navigated with the keyboard or mouse12. Reference: 1: Wireless Network Manager command line ncurses GUI. 2: NetworkManager - ArchWiki.
Was sollte der Administrator tun, um zu verhindern, dass ein bestimmter Benutzer Aufgaben mit at plant?
정답: C
설명: (DumpTOP 회원만 볼 수 있음)
Welches Attribut gibt in einer xinetd-Konfigurationsdatei die Netzwerkadresse an, die zur Bereitstellung des Dienstes verwendet wird?
정답:
bindinterface
Explanation:
The bind attribute in an xinetd configuration file specifies the network address that will be used to provide the service. It can be either an IP address or a hostname. If the bind attribute is not specified, xinetd will listen on all available addresses on the system. The bind attribute can be used to restrict the service to a specific interface or network. For example, bind = 192.168.1.100 will only allow the service to be accessed from the 192.168.1.0/24 network. The bind attribute can also be used to provide different configurations for the same service on different addresses. For example, one can have two telnet configuration files, one with bind = 192.168.1.100 and another with bind = 192.168.2.100, to offer different access rules or options for the telnet service on each address.
Reference:
xinetd - Wikipedia
17.4. xinetd Configuration Files - Red Hat Customer Portal
How to configure xinetd ? - Red Hat Customer Portal
Explanation:
The bind attribute in an xinetd configuration file specifies the network address that will be used to provide the service. It can be either an IP address or a hostname. If the bind attribute is not specified, xinetd will listen on all available addresses on the system. The bind attribute can be used to restrict the service to a specific interface or network. For example, bind = 192.168.1.100 will only allow the service to be accessed from the 192.168.1.0/24 network. The bind attribute can also be used to provide different configurations for the same service on different addresses. For example, one can have two telnet configuration files, one with bind = 192.168.1.100 and another with bind = 192.168.2.100, to offer different access rules or options for the telnet service on each address.
Reference:
xinetd - Wikipedia
17.4. xinetd Configuration Files - Red Hat Customer Portal
How to configure xinetd ? - Red Hat Customer Portal