The prefered DNS server for the site is the server which sends the dns zone updates to all the other servers in the site.
The primary DNS zone is created on the server and it has the authority to send changes in zone to other servers
The server which is domain controller only that server has AD installed on it others are just member servers which does not have AD on them but has only windows 2003 OS.So you can make changes in ad related servers or DCs only. You can install AD on member server that is the only thing you can do on member server related with Ad
The entire web uses internet servers. It is used so that any computer connected to internet can have access to any information stored on that particular server. You can even have your own server designed.
in Active Directory server roles, computers that function as servers within a domain can have one of two roles: member server or domain controller. A member server is a computer that runs an operating system in the Windows 2000 Server family or the Windows Server 2003 family, belongs to a domain, and is not a domain controller. Member servers typically function as the following types of servers: file servers, application servers, database servers, Web servers, certificate servers, firewalls and remote-access servers.
Whenever mail servers talk to each other, they look for MX records at the destination's DNS. When a DNS server is setup for a domain and that domain has mail capabilities, their DNS server will have at least one MX record to denote which server handles mail. The root DNS servers for the internet denote the addresses for the SOA (start of authority) DNS servers for a particular domain.
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Types of computer servers include web servers and storage servers. A web server services client requests made by the visitors of the website it hosts while a storage server provides data storage facilities.
Application Server, Internet Server, Firewalls, Messaging Server, Gateways, Remote Access Servers
Dedicated servers are more secure than shared servers. On shared servers anyone is able to access the server, whereas with dedicated servers, only those who are authorized can access the server.
Some servers running on default ports are a really bad idea because it's literally asking people to attack that server, in particular with stuff like SSH servers.
That is the correct spelling of the plural noun servers (network computers, or waiters).
Google maintains their servers in the server rooms.
IT purely depends on the Size of the organization, users and the work they are doing. The servers could be print server, file share, ad servers,sharepoint server,database servers etc..