Private IP ranges
CCNA
Classful vs. Classless IP Addressing: A Complete CCNA Guide
IP addressing is the foundation of every network. Every device — a laptop, a server, an IoT sensor — needs an IP address to send and receive data. But the way those addresses are organized has changed fundamentally since the early internet. The original system, classful addressing, divided the address space into rigid classes and...
CCNA
Quiz Test: IP Address Classes
Quiz Test: IP Address Classes – Test your knowledge of IP address classes with this interactive quiz. Perfect for CCNA and networking students, this quiz covers Class A, B, C, D, and E IP addresses, their structures, and uses. IPv4 Addressing Quiz Submit Answers Reset Quiz