CORRECT TEXT

The presence of what file will temporarily prevent all users except root from logging into the
system? (Specify the full name of the file, including path.)

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

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

Which command is used to set restrictions on the size of a core file that is created for a user when
a program crashes?

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 configuration file would be edited to change default options for the OpenSSH server?

Which configuration file does sudo read when determining if a user is permitted to run applications
with root privileges?

Which of the following commands can be used to associate open TCP ports with the processes
that opened the ports?

CORRECT TEXT

Instead of using specific host names or IP addresses, which string can be used in /etc/hosts.allow
entries to cover any remote host no matter of its name or address? (Specify the relevant string

only without any additional options or arguments.)

Which of the following resources can be directly limited for a given user using ulimit? (Choose
THREE correct answers.)