102-400 Sample Questions Answers

After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)

What is the purpose of a screen reader?

Which of the following commands shows the current color depth of the X Server?

Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.)

After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)

Which command is used to set the hostname of the local system? (Specify ONLY the command without any path or parameters.)

Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)

Which configuration file would be edited to change the default options for outbound SSH sessions?

When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this?

Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?

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.)

What word is missing from the following SQL statement?

insert into tablename ________(909, 'text');

(Please specify the missing word using lower-case letters only.)

Which of the following commands lists all defined variables and functions within Bash?

What of the following can be done by the command ifconfig? (Choose TWO correct answers.)

Given the following routing table:

How would an outgoing packet to the destination 192.168.2.150 be handled?