LX0-104 Online Practice Questions and Answers

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.)

A. /etc/skel

For accessibility assistance, which of the following programs is an on-screen keyboard?

A. xkb

B. atkb

C. GOK

D. xOSK

Which command can be used to delete a group from a Linux system?

A. groupdel

B. groupmod

C. groups

D. groupedit

Where are user specific crontabs stored?

A. In the database file /etc/crontab.db which is shared by all users.

B. As individual per-user files within /var/spool/cron.

C. As individual per-user files in /etc/cron.user.d.

D. In the .crontab file in the user's home directory.

E. In the file /var/cron/user-crontab which is shared by all users.

Which of the following commands will convert files from one character encoding to another?

A. convert

B. enc2utf

C. iconv

D. transcode

What entry can be added to the syslog.conf file to have all syslog messages generated by a system displayed on console 12?

A. *.* /dev/tty12

B. /var/log/messages | /dev/tty12

C. | /dev/tty12

D. syslog tty12

E. mail.* /dev/tty12

What is true regarding TCP port 23?

A. Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.

B. Port 23 is the well known port for the SSH service which provides secure logins.

C. Port 23 is the well known port for the rlogin service which is SSL secured by default.

D. Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell.

What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)

A. l

What is a purpose of an SSH host key?

A. It must be sent by any SSH client in addition to a user key in order to identify the client's host.

B. It provides the server's identity information to connecting SSH clients.

C. It is the root key by which all user SSH keys must be signed.

D. It authenticates any user that logs into a remote machine from the key's host.

E. It is used by system services like cron, syslog or a backup job to automatically connect to remote hosts.

Which of the following commands can be used to limit the amount of memory a user may use?

A. umask

B. usermod

C. ulimit

D. passwd

E. chage