Application Layer
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
Yes, SMTP (Simple Mail Transfer Protocol) relies on the underlying network infrastructure, which includes the physical data link layer, for transmission. While SMTP operates at the application layer of the OSI model, it requires the lower layers, including the physical layer, to facilitate the actual sending and receiving of data packets over a network. Without the physical data link layer, SMTP messages could not be transmitted between servers or clients.
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]
NTLM, LDAP, SMTP & RPC protocol
smtp, http, anything on that specific OSI layer.
SMTP is a protocol for sending emails over the Internet. It manages email sending and delivery. Providers like iDealSMTP, SMTPget, and Mailgun offer the best SMTP services for smooth email operations.