Questions:

1. What is the purpose of the "iptables" command in Linux?

Manage package installations
Monitor network traffic
Configure the system firewall rules
Create compressed archives

2. What is the purpose of the "chown" command in Linux?

Change the user's password
Change file ownership
Change the system hostname
Change the shell prompt

3. What is the purpose of the "swapon" command in Linux?

Activate a swap partition or file
Turn off system swap entirely
Enable suspend mode
Start a new process in the background

4. What is the purpose of the 'dmesg' command in Linux, and how can it be used to diagnose system issues?

'dmesg' displays the contents of kernel memory and CPU registers.
"dmesg" provides real-time monitoring of system network traffic.
'dmesg' is used to manage disk partitioning and filesystems.
'dmesg' displays kernel messages, including boot-up information and hardware-related events, which can help diagnose system issues.

5. Which command is used to display free and used memory in Linux?

meminfo
free
memory
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