Illustrate domain name system, Computer Engineering

Assignment Help:

Q. Illustrate Domain Name System?

Domain name is a name which is given to a network for ease of reference. Domain refers to a group of computers which are known by a single common name. Somebody has to transfer these domain names in IP addresses. It is decided on physical location of the web server as well as where domain name is registered. Some generic domain names are:

Domain name

Description

Com

Commercial organization

Edu

Educational organization

Gov

Government organization

Mil

Military group

Org

Non-profit organization

Hence, humans use domain names when referring to computers on the Internet, while computers work only with IP addresses, which are numeric. DNS was developed as a distributed database. Database contains the mappings between domain names and IP addresses scattered across different computers. This DNS was consulted whenever any message is to be sent to any computer on Internet. DNS is based on the creation of hierarchical domain based naming architecture, which is implemented as a distributed database. It's used for mapping host names & email addresses to IP addresses. Every organization operates a domain name server which contains list of all computers in that organization along with their IP addresses. When an application program needs to translate a computer's name into computer's IP address, application becomes a client of the DNS. It contacts a domain name server and sends the server an alphabetic computer name then server returns the correct IP address. Domain name system works like a directory.

A given server doesn't store the names and addresses of all possible computers in Internet. Every server stores the name of computers at only one enterprise or company.


Related Discussions:- Illustrate domain name system

Object oriented and structured oriented programming, What is the difference...

What is the difference among object oriented and structured oriented programming? Ans) ? Object Oriented means programme will be there in terms of Class and Object connection w

Describe about analysis, Analysis describes about the logical and statistic...

Analysis describes about the logical and statistical analysis needed for an efficient output. This involves writing of code and performing calculations, but most part of these lang

Conjunctive normal forms, Conjunctive Normal Forms: However there for ...

Conjunctive Normal Forms: However there for the resolution rule to resolve two sentences so they must both be in a normalised format called as conjunctive normal form, that is

Hard-disk acquisition, Problem (a) Forensic methodology consists of t...

Problem (a) Forensic methodology consists of three phases. Briefly explian these three phases. (b) Sometimes it's best not to perform hard-disk acquisition. Provide two

Minimum degree of t=1 for a b-tree, Why don't we permit a minimum degree of...

Why don't we permit a minimum degree of t=1 for a B-tree? According to the definition of B-Tree, a B-Tree of order n means that every node in the tree has a maximum of n-1 keys

Traditional schema model, (a) Why did SAP introduce the extended star schem...

(a) Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model? (b) What is the difference between a dimension use

Microprocessors and motherboards, Module Learning Outcomes for This Assignm...

Module Learning Outcomes for This Assignment 1. Design and minimize a digital electronic circuit using logic devices from ttl and cmos. 2. Explain the hardware design of

Describe type library and what is its purpose, Type libraries are files tha...

Type libraries are files that explicitly explain some or all of the contents of components. This haves information about the methods, properties, constants, and other members expos

Difference between char a[] = "string", What is the difference between char...

What is the difference between char a[] = "string"; and char *p = "string";? Ans) In the first case 6 bytes are assigned to the variable a which is fixed, where as in the secon

Explain difference between a constant and variable, What is the difference ...

What is the difference between a constant and variable? Explain with example.  A C constant is usually just the written version of a number. For example 1, 0, 5.73, 12.5e9. We

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd