what is DNSZones

Domain DNSZones a DNS replication scope that copies DNS data to all DCs in a domian that are configured as DNS server.

Introducing DNS Zones : The DNS hierarchal structure is that worked for name resolution is distributed across many different resources. For administrative purpose, DNS domains can be organized into zone is a collection of host name-to-IP address mappings for hosts in a contiguous portion of the DNS namespaces. Just like DNS resource records, DNS zones can be created and configured using the windows server 2008 DNS MMC snap-in, or else the dnscmd DNS management command-line utility.

DNSZones

How DNS query works

When a DNS client needs to look up a name used in a program, it queries DNS servers to resolve the name.
Each query message the client sends contains three pieces of information, specifying a question for the server to answer:

1. A specified DNS domain name, stated as a fully qualified domain name (FQDN)
2. A specified query type, which can either specify a resource record by type or a specialized type of query operation
3. A specified class for the DNS domain name.
   

For Windows DNS servers, this should always be specified as the Internet (IN) class.

what is DNS query

DNS query the process of requesting DNS information from a windows servers

See also :

How DNS query works ?

what is DNS namespace

DNS namespace: a hierarchical, tree-structured list of DNS host names and domain names.

Starting at an unnamed root that is used for all DNS operations. Each domain can have additional chaild domains: a typical DNS namespace might be the google.com domain, which contains the us.google.com child domains within the same namespace, and host names also called leaf objests, representsing individual TCP/IP-enabled devices such as server1.austin.us.google.com, hplaserjet.sales.ee.google.com, or www.us.google.com

DNS namespace that you might find on the Internet.

The DNS namespace has a hierarchical structure, and each DNS domain name is unique within a namespace.

• In Diagram at that top of the Internet DNS namespace is root domain. The root domain is represented by "." ( A Period).
  

• Under the DNS root domain, the top-level domains,or first-level domain, are organizational types such as .com , .edu, .org.

• Infrastructure domain : google is the Internet's infrastructure domain name.
  

what is DNS

Domain Name System (DNS) is a Service or Server, an Internet service that translates domain names into IP addresses.

Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address. Domain Name System (DNS) the primarymeans of name resolution in Active Directory and on major TCP/IP networks such as the internet.

Concepts of DNS such as

• DNS namespace
• DNS query
  
• DNS zones
• DNS server
• DNS records
• DNS resolvers
• DNS server cache
• DNS round robin

what is computer network

Simple definition of computer Network : Physical connection of all the inter networking devices connected together is called Network.

Summary: A computer network, time and again simply referred to as a network, is a group of computers and devices linked by communications channel that facilitate communications between users and allows users to share resources with other users. Networks may be classified according to a wide range of characteristics.

Computer networks can be used for several purposes:

• Sharing files
• Sharing software
• Facilitating communications.

what is intranet

Simple definition of Intranet : The Network connect with in the network is called intranet.

Summary:An intranet is a private computer network that uses Internet Protocol technology to securely share every part of organization information within that organizations. The expression is used in compare to internet, a network between organizations, and instead refers to a network within an organization. Sometimes the term refers only to the organization's internal website, but may be a more extensive part of the organization's information technology infrastructure. It may host multiple private websites and constitute an important component and focal point of internal communication and collaboration

An intranet is built beginning the same concepts and technologies use for the Internet, such as client–server computing and the Internet Protocol Suite /Internet Protocol (TCP/IP). one of the well known Internet protocols may be found in an intranet, such asHypertext Transfer Protocol ( HTTP) means web services), Simple Mail Transfer Protocol (SMTP) means e-mail, and File Transfer Protocol (FTP) means file transfer. Internet technologies are often deployed to provide modern interfaces to inheritance information systems hosting corporate data.
An intranet can be understood as a private analogy of the Internet, or as a private extension of the Internet restricted to an organization. The first intranet websites and home pages begin to appear in organizations in 1990-1991.