Questions:

1. What is the "sudo" security policy in Linux, and how can you configure it to enhance security?

'sudo' is a user authentication mechanism that requires biometric identification.
"sudo" is a protocol for securing remote connections to Linux servers.
'sudo' is a privilege escalation tool that allows authorized users to execute commands with elevated privileges, and you can configure it by editing the "/etc/sudoers" file.
'sudo' is a system daemon that manages software package installations.

2. Which command is used to display the available disk space on mounted filesystems in a human-readable format in Linux?

du
df
fspace
diskstat

3. What command is used to view and manipulate processes in real-time in Linux?

top
ps
process
status

4. What is the purpose of the "systemd" init system in modern Linux distributions?

Manage virtual machines
Monitor network traffic
Handle user logins
Control system services and processes

5. What is the purpose of the "cron.daily" directory in Linux?

Store system logs
Hold temporary files
Store daily cron jobs
Manage network interfaces