Other Network Protocols

FTP - Tranferring Files

 Used to transfer files across a network or the internet. It is a high level protocol found in the application layer.

E.g: A worker uploads a file from there computer (client) to the FTP server. This can then be accessed by co-worker as they can see a 'shared folder' on the server.


Receiving and Sending emails

 A mail server acts as a 'post office' for emails. It directs mail based on a database of all the local email addresses. The mail is then held until the user retrieves it (a bit like a American post box).

POP3 - Emails are temporarily stored on the server. When the client computer accesses the email it gets downloaded to there computer and deleted from the server. The problem with this is that emails will only sync to one device, not multiple.

IMAP - Emails are stored on a server and synced between devices. Any change on one device will appear on another device. This is how most modern email accounts work.

SMTP - Transfers email direct from one server to another. Does not store them. Just waits until two email clients are online for emails to be sent.


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