Which Of The Following Protocols Is Used For Resolving Host Names To Ip Addresses?

Which Of the Following Protocols Is Used for Resolving Host Names to Ip Addresses?

• FTP
• HTTP
• DNS
• DHCP.

Answer: The protocol which is used to resolve the hostnames to IP addresses is the DNS (Domain Name System). It is the technique that generally resolves the names of the server to the address of the network. DNS allows the local administrator to control the records which covert the name to the IP addresses.

What do you know about DNA?

DNS (Domain Name System) is the database where the domains are identified and transformed to IP addresses. The DNS can map the names which are used to find the specific website to the network addresses which is used by the system to identify the site. For instance, if the user searches “xyz.com” in the browser the server on the backend maps the typed domain name to its corresponding IP address. The IP address structure is like 206.0.123.71.

The web browser and different network activities depend on the Domain Name System to give the necessary data which is used to connect the user with the hosts. The mapping of the Domain Name System is spread over all the networks in the form of an authoritarian hierarchy. The organizations, schools’ universities, the government all of them have specific IP addresses ranges and domain names. Many URLs are formed around the domain name of the server which can handle the client request. The working of the DNS is in the following:

• Enter the web address.
• The message is sent by the browser known as recursive DNS query to the network which checks the IP address associated with the domain.
• The query is sent to a recursive DNS server which is handled by the ISP, if the address is present then it will return toward the user and the webpage loads.
• If the recursive server has no answer then DNS will query some other services in the order of DNS root name server, top-level domain name server, and authoritative name server.