PRESENTED BY:
BRIJESH TIWARI
BCA 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 (HYPERTEXTTRANSFER
PROTOCOL)
 FTP (FILETRANSFER
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 forTCP 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 (HYPERTEXTTRANFER 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( FILETRANSFER 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 MAILTRANSFER PROTOCOL)
SMTP is used for the transfer E-mail
message.
• It is aTCP/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