PRESENTED BY:BRIJESH TIWARIBCA 4 + GPCA

PROTOCOLS AT APPLICATION & NETWORK LAYER

INTRODUCTION

PROTOCOLS –

• A uniform set of rules that enable two devices to connect and transmit data to one another.

• Protocols determine how data are transmitted between computing devices and over the networks.

TYPES OF PROTOCOLS

TCP / IP (TRANSMISSION CONTROL PROTOCOLS / INTERNET PROTOCOL)

HTTP (HYPER TEXT TRANSFER PROTOCOL)

FTP (FILE TRANSFER PROTOCOL)

SMTP (SIMPLE MAIL TRANSFER PROTOCOLS)

DEFINE OF TCP/IP PROTOCOL

Transmission control protocol(TCP) and Internet protocol(IP) are two distinct network protocol.

TCP and IP are so commonly use together.

TCP/IP reference for TCP or Internet protocol.

It was first test in early 1980 on ARPANET.

TCP is connection oriented protocol.

IP is connection less protocol.

TCP less a connection on both and currently reliable delivery of the full message sent.

DEFINE HTTP PROTOCOL

HTTP (HYPER TEXT TRANFER PROTOCOL) –

The HTTP provides a standard for web browser and server to communicate.

The HTTP is a technical specification of a network protocol that software must implement.

HTTP is an application layer network protocol built on the top of TCP.

HTTP clients(such as web browser) and server communicate via HTTP request and response message.

DEFINE FTP PROTOCOL

F.T.P( FILE TRANSFER PROTOCOL) -

* The FTP service allows are internet user to move a file from one computer to another on internet.

* A files may contain any type of digital information such as – text, images, documents, movies, sounds, software etc.

DEFINE SMTP PROTOCOL

SMTP(SIMPLE MAIL TRANSFER PROTOCOL)

SMTP is used for the transfer E-mail message.

• It is a TCP/IP protocol that specifies how computer exchange an electronic mail.

• It works with post office protocol(POP)

APPLICATION LAYER

* This layer is the top level layer in OSI model.

* The top layer define the language and system that program use to communicate with other program use communicate with other program.

* This layer are opening and closing reading and writing sides transforming side and

e-mail message execute remote.

NETWORK LAYER

NETWORK LAYER –

• Network layer establishes the root between the sending and receiving station .

• The unit data at the network layer is called a packet.

• Network layer is responsible for translating logical address or names in to physical layer.

• The main device found at the network layer is router.

THANK YOU