Networks - Protocols Flashcards
What is FTP?
A standard network protocol used to transfer files between a client and server on a network.
Which layer is FTP?
Application
What does FTP stand for?
File Transfer Protocol.
How does FTP let us download files directly from a normal web page?
It is built into the web browser.
What does POP stand for?
Post Office Protocol
What does POP do?
Allows emails to be downloaded and/or deleted from a mail server, and viewed offline by an email client.
What is the disadvantage of POP?
It can only handle one mailbox.
Once messages are downloaded, they’re removed from the server and can’t be later viewed by other devices.
It doesn’t support complex searches of emails on the server.
What does IMAP stand for?
Internet Message Access Protocol
How are features of IMAP?
- Set flags showing viewed, replied to, deleted
- Access emails on multiple devices
- Complex searches based on subject, headers etc
- More than one mail box
- Choose whether to download just headers, full body or not to download attachments.
What is the main difference between IMAP and POP?
The email remains on the server, even after being downloaded to the device. It has more complex commands to manage emails on the server itself.
What is SMTP?
A protocol used by the mail server itself to send and receive emails from all other mail servers across the internet.
