Additional Practice
For additional practice with classful networks, consider the following:
DVD Appendix D, “Practice for Chapter 12: Analyzing Classful IPv4 Networks,” has additional practice problems. This appendix also includes explanations about how to find the answer of each problem.
Create your own problems. You can randomly choose any IP address and try to find the same information asked for by the practice problems in this section. Then, to check your work, use any subnet calculator. Most subnet calculators list the class and network ID. ...
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