Answers to Practice Choosing Subnet Masks
The earlier section “Practice Choosing Subnet Masks” listed three practice problems. The answers are listed here so that the answers are nearby, but not visible from the list of problems. Table 19-7 lists the answers, with notes related to each problem following the table.
Table 19-7 Practice Problems: Find the Masks That Meet Requirements
1. N=8, because the problem lists Class A network 10.0.0.0. With a need for 1500 subnets, 10 subnet bits supply only 1024 subnets (per Table 19-2), but 11 subnet bits (S) would provide 2048 subnets—more than the required 1500. Similarly, the smallest number of host ...
Get CCENT/CCNA ICND1 100-101 Official Cert Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
