File Transfer Protocol (FTP)

Which use cases would you solve with FTP?

• Sharing a 12GB medical data file 🚚

• Exchanging some words with your friend in Japan 🇯🇵

• Loading a website into your browser

• Doing a backup of your 3391 cat pics

Which transport protocol uses FTP?

• UDP

• IP

• TCP

• WiFi

Which architectural pattern follows FTP?

• Peer to peer

• Client - server

• Pub/sub

• Master - slave

FTP has many similarities with SMTP because it was designed...

• after SMTP

• before SMTP

• at the same time as SMTP

• by the same guy

In the same way as SMTP, an FTP server...

• Accepts commands in form of ASCII messages

• Responds with a status code and phrase

• Can act as a client an as a server

• Adds random headers to its requests

Which kind of files can be sent over FTP?

• Plain ASCII text files

• UTF-8 text files

• Binary files

• Audio files

How many TCP connections does an FTP server handle?

• Just one, for control

• Just one, for data transfer

• Two, one for control and one for data transfer

• Three: one for control, one for data transfer and one more as a backup

Which kind of contents travel over the control connection?

• ASCII commands

• Status codes and phrases

• Command results (e.g. the listing of a directory)

• Streams of bytes

Which kind of contents travel over the data connection?

• ASCII commands

• Status codes and phrases

• Command results (e.g. the listing of a directory)

• Streams of bytes

When should we prefer the passive mode?

• While behind a NAT

• When we have limited bandwidth

• While behind a firewall

• If the server can not initiate the connection by itself