What is a MAC Address? How to Find the MAC Address of Windows, Mac OS, Linux, and Router? MAC address vs IP address

What is a hexadecimal number? How hexadecimal number is different from a binary number? Hexadecimal to decimal conversion and vice versa.

The understanding binary number and a decimal number. How to convert decimal to binary and binary to decimal number. Learn the concept!

What is the exact difference between IPv4 and IPv6 in computer networking? Why is IPv6 better than IPv4? Which one to use and when to use?