- Front end
Front end is used to describe all the parts of a website that can be seen and interacted with by users.
- FTP (File Transfer Protocol)
FTP essentially transfers web page files to the computer server so others can access them. FTP can also be used to download files or programs from the Internet to your computer. When you download these files, you are transferring them from other servers through FTP.
A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet.