Types of Internet Protocols:

 TCP/IP (Transmission Control Protocol/Internet Protocol)

UDP/IP (User Datagram Protocol/Internet Protocol) 

HTTP (HyperText Transfer Protocol) 

FTP (File Transfer Protocol)

SMTP (Simple Mail Transfer Protocol)

TCP/IP AND SMTP

By- Delisha

TCP/IP

TCP/IP stands for Transmission Control Protocol/Internet Protocol. TCP/IP is a set of layered protocols over used for communication over the internet. The communication model of this suite is a client-server model.  A computer that sends a request is the client and  a computer to which the request is sent is the server.

TCP/IP has four layers −

Application layer − Application layer protocols like HTTP and FTP are used.

Transport layer − Data is transmitted in form of datagrams using the Transmission Control Protocol (TCP). TCP is responsible for breaking up data at the client side and then reassembling it on the server-side.

Network Layer- The network layer connection is established using IP at the network layer. Every machine connected to the internet is assigned an address called IP address by the protocol to easily identify the source and destination machines. 

Data Link Layer-  Actual data transmission in bits occurs at the data link layer using the destination address provided by the network layer.

SMTP

The Simple Mail Transfer Protocol is an internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. Simple Mail Transfer Protocol (SMTP) is based on end-to-end message delivery.  The Simple Mail Transfer Protocol (SMTP) is an internet standard communication protocol for electronic mail transmission.

POP3 AND HTTPS

By- Saras

POP3

POP3 (Post Office Protocol 3) is the most recent version of a standard protocol for receiving e-mail. POP3 is a client/server protocol in which e-mail is received and held for you by your Internet server.

Post Office Protocol version 3 (POP3) is an mail protocol used to retrieve mail from a remote server to a local email client. POP3 copies the mail from the remote server into the local mail client. Optionally, mail is deleted after it is downloaded from the server. This saves space on the server.