is an essential technical course on LinkedIn Learning (formerly Lynda.com), designed to demystify IPv4 addressing and network segmentation. Taught by expert Kevin Wallace , the course prepares IT professionals for critical exams like the Cisco CCNA and CompTIA Network+ . 1. Core Course Content

: Determining how many bits to borrow to create a specific number of subnets.

: Understanding address structure, formatting, and the original Class A, B, and C address schemes.

To ensure you can "see" subnets without a calculator, the course includes specific hands-on resources.

: Identifying the network address, broadcast address, and usable IP range for any given mask.

: Troubleshooting incorrectly assigned addresses and using Classless Interdomain Routing (CIDR) for efficient IP summarization. 2. Practical Learning Tools

: Calculating the bits required to support a target number of devices per subnet.