The world wide web http, Computer Networking

Assignment Help:

The World  Wide Web HTTP

The Hyper text Transfer Protocols( HTTP) is a protocols  used mainly to  access data on the world  wide  web. HTTP functions as a carbonation of FTP( File  Transfer Protocols) and SMTP ( Simple  Mail Transfer Protocols). HTTP is  implemented in two programs a  client program  and a server program. The  client program  and server program executing on different end systems talk to each other by  exchanging. HTTP message HTTP defines the structure of these  message  and how  the client and server exchange  the messages.

HTTP defines  how web  clients (f or  example browser ) request  web  page from web  servers and  how servers transfer web page to client. In  figure 3.3 when a user requests a web  page (f or  e, g, clicks on a hyperlink) the  browse sends HTTP request messages for the objects  ( an  objects  is simply a file such as an HTML file a JPEG image are GIF image java applet an audio clip and so on in the page to the server.

HTTP uses TCP (Transmission control  protocols) is  its  underlying transport protocol.  Because TCP provides a reliable data transfer services to HTTP. HTTP consists  of two  types  of massage format request  and response.

2035_The World  Wide Web HTTP.jpg

                                                                   figure HTTP request response behavior

 

The HTTP client first  initiates a TCP connection with  the server. Once the connection is established the browser and the server process access TCP through their socket interface. On  the client  side the socket interface is the door between  the client process and the TCP connection on  the server side it is the door  between  into its  socket interface and receives HTTP response message from  its socket interface. Similarly  the HTTP server receives request message from its  socket interface and sends response message  into its socket interface. Once  the client sends  a message  into its  socket  interface the  message  is out  of the  clients  hands  and is  in the bands of TCP.

HTTP need not worry  about  lost data  or the details of  how TCP recovers from loss  or reordering of data within  the network. That is the job of TCP and the  protocols in the  lower layers  of the protocols stack. It  is important to note  that the server sends  requested files to client without storing any state information about the client. If  a particular client asks for  the same object twice in a period of a few  seconds the server does not  respond by saying that it just  served the object  t the client instead the server resends the objects as it has completely forgotten what  the server  has sent earlier because on HTTP server mantas no information  about  clients HTTP is said  to be  as tasteless protocols.

 

 

 


Related Discussions:- The world wide web http

Classify different types of ip routing, INTERNETWORKING - TCP/IP 1. Sta...

INTERNETWORKING - TCP/IP 1. State the following terminologies: a) Node b) Router c) Host d) Subnet e) Network 2. What do you understand by IEEE 802 Local Area network 3.

Routing principle - network layer and routing , Routing Principle The p...

Routing Principle The principle  criterion of  successful routing is of course correctness but it not only criterion. You might  prefer to take the most direct route ( the  one

Explain categorization according to pipeline configuration, Categorization ...

Categorization according to pipeline configuration According to the configuration of a pipeline, the below categories are recognized under this classification: Unifunct

Reliable data transfer over a channel bit error rdt : 20, Reliable  data...

Reliable  data  transfer over a channel bit error  rdt : 20 A more realist model  of the underlying  channel  is one  in which  bits in packet may be  computed. Such  bit erro

Defining error detection, Problem 1. Explain the term Switching. Descri...

Problem 1. Explain the term Switching. Describe the following Switching Mechanisms a) Circuit Switching b) Packet Switching c) Message Switching Defining Switching

Functions and significance of tcp header’s fields, Describe the functions a...

Describe the functions and significances of all fields (such as Source Port and Destination Port) of a TCP header. Functions and significance of tcp header's fields FIELDS

What is wan, What is WAN? A wide area network is defines a LAN o...

What is WAN? A wide area network is defines a LAN of LANs. WANs connect LANs that might be on opposite sides of a building, across the country or around the world.  WANS

Network virtual terminal - transport layer , Normal 0 false f...

Normal 0 false false false EN-IN X-NONE X-NONE

Explain the term dimensionality of interconnection network, Dimensionality ...

Dimensionality of Interconnection Network Dimensionality refers the arrangement of processing elements or nodes in an interconnection network. In linear network or single dimen

Why you require connecting two computers for file sharing, You require conn...

You require connecting two computers for file sharing. Is it possible to do this without using a hub or router? Yes, you can connect two computers together using only one cable

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