Domain Name System Format. A brief introduction of Domain Name System DNS Messages Frame Format. Format of a query in other words it shows the contents of a DNS query packet to a DNS server requesting to resolve a domain.
Since the domain system is intentionally extensible new data types and experimental behavior should always be expected in parts of the system beyond the official protocol. It contacts authoritative name server. Web browsers interact through Internet Protocol IP addresses.
Hierarchy of Name Servers Root name servers It is contacted by name servers that can not resolve the name.
AA Authoritative Answer1 bit. DNS which stands for Domain Name System is used as the medium to translate domain names to their respective IP addresses when a client initiates a request query. Using a simpler more memorable name in place of a hosts numerical address dates back to the ARPANET era. Query and Response Messages.