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Unformatted text preview: and the root node. 9. Caching reduces the search time for a name. 11. DDNS is needed because the many address changes makes manual updating ineffi-cient. Exercises 13. a. FQDN b. FQDN c. PQDN d. PQDN 15. Remembering a name is often easier than remembering a number. 17. There are three labels but four levels of hierarchy since the root is considered a level. 19. This is a generic domain . 21. The number of question sections and answer sections must be the same. The rela-tionship is one-to-one . 2...
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- Winter '09
- Domain Name System, Odd-Numbered Review Questions