CCENT/CCNA ICND1 100-105 Official Certification Guide, First Edition

Appendix H. Practice for Chapter 22: Variable-Length Subnet Masks

Practice Problems

This appendix includes two varieties of VLSM practice problems related to Chapter 22, “Variable-Length Subnet Masks.” The first type of problem lists pairs of IP addresses and masks from a network, and your job is to discover whether any of the subnets implied by those addresses/masks overlap. The second problem starts with a list of existing subnets, and your job is to find the numerically lowest new subnet ID that could be added to that internetwork for a given mask.

Note

You may also elect to do this same set of practice problems using the Finding VLSM Overlaps and Adding New VLSM Subnets applications on the companion website.

Note that you can find additional ...