Quick Answer: What Is HTTP Protocol And How It Works?

Does HTTP use TCP or UDP?

HTTP uses TCP instead of UDP because it guarantees delivery via a three-way handshake and re-transmission of lost packets..

How does the HTTP protocol work?

How does HTTP work? As a request-response protocol, HTTP gives users a way to interact with web resources such as HTML files by transmitting hypertext messages between clients and servers. HTTP clients generally use Transmission Control Protocol (TCP) connections to communicate with servers.

Is 80 UDP or TCP?

Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) but unlike TCP on Port 80, UDP Port 80 is connectionless and does not guarantee reliable communication; it’s up to the application that received the message on Port 80 to process any errors and verify correct delivery.


Hypertext Transfer Protocol (HTTP) is a member of the TCP/IP family. Each server or client on a TCP/IP internet is identified by a numeric IP (Internet Protocol) address.

Does http use socket?

HTTP is a protocol for defining messages sent throughout the web. As suggested above, communication via HTTP is usually done using sockets and the TCP transport protocol.

What HTTP ports can I use?

There are actually 3 HTTP alternative ports: 591, 8008 and 8080. They are assigned by IANA as “HTTP Alternate”, which makes them pretty much as official as it gets. If you run Linux as a non-privileged user (non-root) you can listen to any port above 1024, so 8008 and 8080 are good candidates.

Is TCP the same as HTTP?

Comparison of TCP and HTTP HTTP is a Hypertext Transfer Protocol, whereas TCP full form is Transmission Control Protocol. HTTP is utilized to access websites, while TCP is a session establishment protocol between client and server. HTTP uses port 80 and TCP uses no port.

What is the format of HTTP response?

After receiving and interpreting a request message, a server responds with an HTTP response message: A Status-line. Zero or more header (General|Response|Entity) fields followed by CRLF. An empty line (i.e., a line with nothing preceding the CRLF) indicating the end of the header fields.

What are the three common HTTP message types?

There are two types of messages: requests sent by the client to trigger an action on the server, and responses, the answer from the server….HTTP ResponsesThe protocol version, usually HTTP/1.1 .A status code, indicating success or failure of the request. … A status text.

What is HTTP and its purpose?

HTTP is a generic and stateless protocol which can be used for other purposes as well using extensions of its request methods, error codes, and headers. Basically, HTTP is a TCP/IP based communication protocol, that is used to deliver data (HTML files, image files, query results, etc.) on the World Wide Web.

Where is HTTP protocol used?

The Hypertext Transfer Protocol (HTTP) is an application layer protocol that is used to transmit virtually all files and other data on the World Wide Web, whether they’re HTML files, image files, query results, or anything else. Usually, HTTP takes place through TCP/IP sockets.

What type of protocol is HTTP?

The Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems.

What are the three parts of an HTTP response?

An HTTP response is also divided into three parts: Status line, header and body.

What is the difference between HTTP header and HTTP body?

The HTTP Header contains information about the HTTP Body and the Request/Response. Information about the body is related to the content of the Body such as the length of the content inside the body.

What is the standard port used by HTTP protocol?

Table C-1 lists the Well Known Ports as defined by IANA and is used by Red Hat Enterprise Linux as default communication ports for various services, including FTP, SSH, and Samba….Note.Port # / LayerNameComment443httpsSecure Hypertext Transfer Protocol (HTTP)444snppSimple Network Paging Protocol110 more rows