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Fully qualified domain name: Quiz


Question 1: A fully qualified domain name (FQDN), sometimes referred to as an absolute domain name[1], is a domain name that specifies its exact location in the tree hierarchy of the ________ (DNS).
Domain Name System Security ExtensionsDomain Name SystemSimple Mail Transfer ProtocolHypertext Transfer Protocol

Question 2: It specifies all domain levels, including the ________, relative to the root domain.
.arpaGeneric top-level domainTop-level

Question 3: Some applications, however, never use trailing dots to indicate absoluteness, because the underlying protocols require the use of FQDNs, such as ________ (e-mail).
Simple Mail Transfer ProtocolEmail clientInternet Message Access ProtocolPost Office Protocol

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