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A Practical Guide to Red Hat® Linux® 8 by Mark G. Sobell

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Advanced Exercises

10.Suppose that the link between routers 1 and 2 is down in the Internet shown in Figure 9-1 on page 359. What happens if someone at Site C sends a message to a user on a workstation attached to the Ethernet cable at Site A? What happens if the router at Site A is down? What does this tell you about designing network configurations?
11.If you have a class B network and want to divide it into subnets, each with 126 hosts, what subnet mask should you use? How many networks will be available? What are the four addresses (broadcast and network number) for the network starting at 131.204.18?
12.Suppose that you have 300 hosts and want to have no more than about 50 hosts per subnet. What size address block should you request from your ...

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