The .com domain was originally intended for what kind of organizations?
AnswerCommercial
.com comes from commercial, one of the original generic top-level domains.
Tech · Facts & stats
Domain facts & stats
7 fact-checked facts about internet domain names, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Which country uses the country-code domain ".de"?
AnswerGermany
.de comes from Deutschland; Denmark uses .dk.
Going deeper
What is the main job of DNS?
AnswerTranslating domain names into IP addresses
DNS lets people type names while computers connect using numeric IP addresses.
The domain ending ".tv" is the country code for which nation?
AnswerTuvalu
.tv belongs to Tuvalu, a Pacific island nation; Tonga uses .to.
Which DNS record type points a name to an IPv4 address?
AnswerA record
An A (address) record maps a hostname to an IPv4 address.
Expert level
What is the maximum length of a single label, the part between dots, in a domain name?
Answer63 characters
DNS rules limit each label to 63 characters, and a full name to about 253.
How many named root server identities, lettered A through M, does DNS have?
Answer13
There are 13 root server identities, each run on many machines around the world.
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