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Sams Teach Yourself TCP/IP in 24 Hours, Fifth Edition by Joe Casad

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Hour 10. Name Resolution

What You’ll Learn in This Hour:

Hostname resolution

DNS

DNSSEC

Dynamic DNS

NetBIOS

In Hour 2, “How TCP/IP Works,” you learned about name resolution, a powerful technique that associates an alphanumeric name with the 32-bit IP address. The name resolution process accepts a name for a computer and attempts to resolve the name to the corresponding address. In this hour, you learn about hostnames, domain names, and fully qualified domain names (FQDNs). You also learn about the alternative NetBIOS name resolution system commonly used on Microsoft networks.

At the completion of this hour, you will be able to

• Explain how name resolution works

• Explain the differences between hostnames, domain names, and FQDNs

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