Exam-style question
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Explain the relationship between a URL, an FQDN, a domain name, an IP address and DNS. Also describe how domain names are organised and why Internet registries are needed.
Model answer
What a good answer should say
- A URL identifies an Internet resource in the context of internetworking.
- An FQDN is a complete domain name that identifies a particular host.
- A domain name is a human-readable name organised into levels, with broader parts of the name grouping or identifying domains.
- An IP address is used to identify a location for communication across networks.
Explanation
Why this works
The answer should distinguish names used by people from IP addresses used for communication. It should also connect DNS with Domain Name Servers, describe the hierarchical organisation of domain names, and explain that registries support the management and registration of Internet names and addresses.
Common mistake
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