Root Servers
Network+ guide to networks by Tamara Dean fourth edition
Located on page 184, Chapter 4
This answer is correct, however; in the 5th edition the answer is in Chapter 4 on page 162.
Domain names are managed under a hierarchy headed by the Internet Assigned Numbers Authority (IANA),
The domain is the highest taxonomic rank that contains one or more kingdoms. The domain is above the kingdom in the hierarchy of biological classification.
The box labeled "a" represents the domain level in biological classification. It is the highest level in the classification hierarchy.
A Domain.
Domanin Authority
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The current hierarchy of classification is: domain, kingdom, phylum, class, order, family, genus, species.
Domain Authority Domain authority is a metric which was created by Moz (SaaS company), for the purpose of rating a website on a scale of 1-100, (100 being the best and 1 being the worst). So the higher the domain authority of a website, the higher it's ranking in search engines.Main Factors of Domain Authority1. Age and popularity of the Domain2. SERPS visibility3. Value back links4. Amount of content
Kingdoms are bigger than domains in biological classification. In the taxonomic hierarchy, the hierarchy goes Domain > Kingdom > Phylum. This means that domains encompass multiple kingdoms within them.
DA is an abbreviation of Domain Authority. It is the main source of strength of a website that leads to a ranking system and algorithm of a system that has been implemented by search engines and is also used to determine where or how your website is positioned in a search engine. Then there is something that can be done to improve this Domain Authority by increasing the age of the domain, increasing the number of backlinks, increasing the number of articles, and improving the articles on your website.
Rank is the relative position in a taxonomic hierarchy. The rank above kingdom is domain. The rank above domain is life.
Domain Kingdom Phylum Class Order Family Genus Species