Question

What do you mean by term Protocol? Explain in brief following protocols :-
a) HTTP
b) HTTPS
c) SMTP
d) IMAP
e) POP3
f) FTP




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Answer 1

Answer:

Protocol is a set of rules which are very essential to transfer data in our day to day lives. Even the IP(internet protocol) is an example of protocol. If these set of rules are not followed then we cant transmit data between two devices.

• a)HTTP: HTTP is the hyper text transfer protocol. It is the foundation of the data transfer in the WWW (world wide web). The documents are linked by Hyperlinks which we see when we press on a link in our day to day lives. Tim berners lee is known for founding the HTTP protocol.

• b)HTTPS: HTTPS is the hyper text transfer protocol secure. It is an extension of the HTTP and it is more secure. Nowadays HTTPS is used more than HTTP as it is more secure.

• c)SMTP: SMTP is known as simple mail transfer protocol. All the mail servers use the SMTP. Hotmail.com,gmail.com,yahoo.com use this server when they send or receive mails. SMTP is a delivery protocol only. It was found by matt mankins

• d)IMAP: IMAP is known as internet message acess protocol. It is used in retrieving mails. The users using IMAP have their mails generally left on the server untill the following is deleted by the server. It was found by mark crispin.

• e)POP3: POP is known as the post office protocol. when a POP3 opens the server , the messages are available for the client.They use transport layer security and many other packets. POP1 and POP2 are older versions and the POP3 version is the one which is currently in use.

• f)FTP: FTP is known as the file transfer protocol. It is used for the transfer of files between a server and a receiver(client). The ftp's used earlier were more young than operating systems and had commandable programs. Now the ftp's constitue HTML editors.