what is the main purpose of dns? course hero

What is DNS and how does it work?

The purpose of a DNS server is that the domain name system ( DNS ) is the method that the Internet uses to store domain names and their corresponding IP addresses . When you enter a domain name ( i.e. , google.com ) in a browser , a DNS server translates the domain name to its associated IP address so that the request can be routed to the correct computer .

What is Domain Name System (DNS)?

Question 4 what is the purpose of a dns server. QUESTION 4 What is the purpose of a DNS server? Connecting devices at Layer 2 of the OSI Blocking packets from the Internet Providing an IP address for an fully qualified domain name Routing packets to the Internet. What is the most common connector that is used with UTP cabling carryingEthernet ...

What is the response to a DNS query?

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What is the purpose of domain names?

To act as an internet search engin Answer: Explanation: Domain name system servers act as a "third party" that provides the service of converting common language domain names to IP addresses (which are required for a web browser to properly make a request for web content).

What is the main function of DNS?

The Domain Name System converts domain names, which can be read by humans, into IP addresses, which in turn can be read by machines. This makes the DNS the “telephone book of the internet” because it is a directory that enables users to access the IP addresses associated with specific addresses in their browsers.

What is the purpose of DNS and HTTP?

The Domain Name System (DNS) plays a crucial role in the whole HTTP request process, as it allows us to call a webpage by typing a simple domain name, www.medium.com instead of 104.16. 121.127 every time you want to access the site.Aug 28, 2018

What is DNS simple answer?

The Domain Name System (DNS) is the Internet's system for mapping alphabetic names to numeric Internet Protocol (IP) addresses like a phone book maps a person's name to a phone number.

What is DNS explain with example?

(Domain Name System) The Internet's system for converting alphabetic names into numeric IP addresses. For example, when a Web address (URL) is typed into a browser, DNS servers return the IP address of the Web server associated with that name.

How does DNS work step by step?

How Does the DNS Process Work?Step 1: Requesting Website Information.Step 2: Contact the Recursive DNS Servers.Step 3: Query the Authoritative DNS Servers.Step 4: Access the DNS Record.Step 5: Final DNS Step.Authoritative DNS Server.Recursive Nameserver.Sep 1, 2020

What is IP address?

An IP address is a unique identifier for a specific path that leads to a host on a network. TCP and IP work closely together, which is why they’re usually referenced like “TCP/IP.”.

Is a domain name a URL?

A domain name is part of a Uniform Resource Locator (URL), but the terms are not synonymous. A URL is the complete web address of a resource, while the domain name is the name of a website and is a sub-component of every URL.

Is IP address related to DNS?

IP Addresses. While IP addresses are related to DNS in their function , the Internet Protocol itself is technically separate from DNS. I’ve already provided historical context for this distinction, so now I’ll explain how IP addresses function.

Is there a DNS query?

Type of query? Yes, there are multiple types of DNS queries. But first, what’s usually in a DNS query? It’s a request for information, specifically for the IP address associated with a domain name.

What is DNS server?

In the world of DNS, the formatting and content of messages vary according to usage. Client-server relationship. In simplest terms, a server is a software or hardware device that provides functionality for other software or hardware devices, called “clients.”. Prepare for a lot of talk about servers.

Which is faster, UDP or TCP?

UDP is faster, much less reliable, and doesn’t require connections; TCP is slower, much more reliable, but needs connections. They are used as needed and appropriate in DNS; needless to say, the inclusion of TCP in APRAnet was a valuable addition to the data transport layer.

When was the Internet invented?

In 1966, the Advanced Research Projects Agency (ARPA), a US government agency, founded a computer network called ARPAnet. In simple terms, think of ARPAnet as the first iteration of what we now know today as the Internet.

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What is the purpose of DNS? Explain the format of a DNS message. Define and explain DHCP

Expert Answer

What is the purpose of DNS DNS or Domain Name Servers can be called as the Internet's equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) view the full answer