Ip Addressing — And Subnetting Workbook Version 2.0 Student Answers

: Perform bitwise AND with mask to find network ID; add inverse mask to find broadcast. Part 6 – Supernetting / Route Summarization Question : Summarize these Class C networks into a single route: 192.168.4.0/24, 192.168.5.0/24, 192.168.6.0/24, 192.168.7.0/24

The story follows a fictional student, , who completes the workbook and documents the reasoning behind each answer. Story: Alex’s Subnetting Breakthrough – Workbook 2.0 Answer Log Background Alex is a networking student preparing for the CCNA exam. The instructor hands out IP Addressing and Subnetting Workbook Version 2.0 – 40 problems ranging from basic address identification to VLSM design. The catch: No multiple choice. Every answer requires calculation. : Perform bitwise AND with mask to find

Alex later passes the CCNA – thanks to the methodical practice of subnetting by hand. The instructor hands out IP Addressing and Subnetting

: Class A (1–126), B (128–191), C (192–223). D/E ignored here. Part 2 – Subnetting a Class C Address (192.168.1.0/24) Problem : Create 4 subnets with at least 25 hosts each. Alex later passes the CCNA – thanks to

| | Hosts needed | CIDR | Subnet mask | Network ID | |----------------|--------------|------|-------------------|-----------------| | Headquarters | 2000 | /20 | 255.255.240.0 | 10.0.0.0/20 | | Branch1 | 500 | /22 | 255.255.252.0 | 10.0.16.0/22 | | Branch2 | 200 | /24 | 255.255.255.0 | 10.0.20.0/24 | | WAN1 | 2 | /30 | 255.255.255.252 | 10.0.21.0/30 | | WAN2 | 2 | /30 | 255.255.255.252 | 10.0.21.4/30 |