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The OSI Application Layer

The Application layer, layer seven of the OSI model, provides the interface between applications and the Network Operating System (NOS). The Application layer provides network services and applications such as HTTP (Hypertext Transfer Protocol), FTP (File Transfer Protocol), TELNET, SNMP (Simple Netwrok Management Protocol) and SMTP (Simple Mail Transport Protocol).

OSI Application Layer

When you think of the Application layer, don't think in terms of applications, but rather protocols. For example there are several different FTP applications that use the FTP protocol at the Application layer.

More Networking Protocols and Standards:
• IPv4 to IPv6 Transition With the Dual-Stack Technique
• Free eBook: IPv6 Addressing
• Video - Data Link Layer of OSI Networking Model
• Video Streaming Protocols
• T-Carrier - A Complete and Comprehensive Guide
• Unicast, Multicast, Broadcast. What Does It Mean?
• IPv6 Anycast Addresses
• Basic TCP/IP Networking
• RIP (Routing Information Protocol)
• TCP/IP Features

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