Types of OSI Layer

OSI Layer 7

1. Application Layer
• DHCP (Dynamic Host Configuration Protocol)Function: This protocol is used for distribution of IP (Internet Protocol) network with a number of IP (Internet Protocol) is limited.
• DNS (Domain Name Server)
Function: This protocol is used for the administration of domain names and numbers machine IP (Internet Protocol)
• FTP (File Transfer Protocol)Function: This protocol is used to transfer files to the machine internetwork
• HTTP (Hyper Text Transfer Protocol)Function: This protocol is used to transfer documents in the form of HTML into the web
• MIME (Multipurpose Internet Mail Extension)Function: This protocol are used to send text files binarydalam
• NNTP (Network News Transfer Protocol)Function: This protocol is used to receive and send news group preformance form of articles in the network and form discussion groups
• POP (Post Office Protocol)Function: This protocol is used to receive and send mail from the sender's computer to the server
• TelnetFunction: This protocol is used to log in or sign in to other computers on the Internet andtelnet also access a wide range of public services available on the internet includinglibrary catalogs and various databases.
2. Presentation Layer
• VTP (Virtual Terminal Protocol)Function: This protocol is used to create and maintain data structure andMentranslating terminal into a standard form.
• SMTP (Simple Mail Transfer Protocol)Function: This protocol is used to exchange mail
• SNMP (Simple Network Management Protocol)Function: This protocol is used to manage or organize networks
• RPC (romote Procedure Call)Function: This protocol is used for dialing long distance
3. Transport Layer
• SPX (Sequence Package eXchange)Function: This protocol is used as a medium for the transmission of data and ensure the validity of the datatransmittedby IPX so that the data sent is not impaired or occurs corruptthe data.
• TCP (Transmission Control Protocol)Function: This protocol is used for data exchange oriented (connection oriented)And the communication of data used by an internet community forthe process of exchanging data on one computer to another computer inan Internet network
• UDP (User Datagram Protocol)Function: This protocol is used for data exchange non orientation and used by applications that are not too concerned with the reliability of service.

4. Network Layer
• IP (Internet Protocol)Function: This protocol is used to to provide the best way to bringdatagram from the source to the destination, regardless of whether the machine in questionare on the same network or not, or whether there are networksAmong other sources with the goal or not or can be called by routing
• RIP (Routing Information Protocol)Function: This protocol is used to select routing
• RARP (Reverse ARP)Function: This protocol is used to obtain information from the hardware IP numbers
• ICMP (Internet Control Message Protocol)Function: This protocol is used to engirim error messages and other conditions that regard special attention
5. Session Layer
• NETBIOS (Network Basic Input Output System)Function: This protocol is used as a standard network system
• NETBEUI, (NETBIOS Extended User Interface)Function: This protocol is used to communicate LAN pda different computers, NETBIOS use on the Ethernet, Token Ring, and Windows NT
• ADSP (AppleTalk Data Stream Protocol)Function: This protocol is used to check the flow of data and monitors the flow of data between computers, so that data can be sent.
• PAP (Printer Access Protocol)Function: This protocol is used for Postscript printer on the AppleTalk network to access and to control how the pattern of inter-node communication.
• SPDU (Session Protocol Data unit)Function: This protocol is used to support the relationship between the two session service user.
• NETBEUI (NETBIOS Extended User InterfaceFunction: This protocol is used for the same dengat NETBIOS only slightly developed further by adding a function that allows to work with a variety of hardware and software.
6. Datalink Layer
• BSC (Binary Synchronous Control / character-oriented protocol)Function: This protocol used mainly for addressing and sending data packets oriented character.
• HDLC (High Level Data Link Control / Protocol oriented bits)Function: This protocol is used to collect (ask) response from peer HDLC frame
• PPP (Point to Point Protocol)Function: This protocol is used for synchronous and asynchronous communication ancan negotiate additional functions Error Detection, through the magic variablenumber.
7. Physical layer• NIC (Network Interface Card)Function: This protocol is used to connect computers to the cableused in local area network (LAN) and allow the computer tocommunicate in a network