HTTP Belongs to the Application layer. Other transfer protocols like POP,FTP,SMTP etc also belongs to this layer
POP
1.application: e-mail application-layer protocol: SMTP [RFC 2821] 2.application: WEB application-layer protocol: HTTP [RFC 2616] 3.application: streaming multimedia application-layer protocol: HTTP (eg Youtobe), RTP [RFC 1889] 4.application:file transfer application-layer protocol: FTP [RFC 959] 5.application: remote terminal access application-layer protocol: Tenet [RFC 854]
Layer 1 - the physical layer
Switches / Bridges and hubs work at data link layer, but there are layer three switches which operate at network layer. Dhruv
Application Layer 7
..the two concept of application layer are HTTP and SMTP
Layer 7, Aplication
smtp
HTTP Belongs to the Application layer. Other transfer protocols like POP,FTP,SMTP etc also belongs to this layer
POP
There are many more than three protocols which can operate at the application layer. Some of these are; Telnet FTP TFTP SMTP IMAP POP DNS RARP BOOTP SNMP CMOT
1.application: e-mail application-layer protocol: SMTP [RFC 2821] 2.application: WEB application-layer protocol: HTTP [RFC 2616] 3.application: streaming multimedia application-layer protocol: HTTP (eg Youtobe), RTP [RFC 1889] 4.application:file transfer application-layer protocol: FTP [RFC 959] 5.application: remote terminal access application-layer protocol: Tenet [RFC 854]
smtp, http, anything on that specific OSI layer.
NTLM, LDAP, SMTP & RPC protocol
There are more than 3 protocols at the application layer. Three well-known protocols are: HTTP - web page traffic FTP - file transfer traffic SMTP - email transfer
The SMTP sever of Hotmail is smtp.live.com.