Comp Sci Protocols

Question 1

FTP

Answer 1

Port Number(s) - 20, 21
Used for sending files between devices

Question 2

SSH (Secure Shell)

Answer 2

Port Number - 22
Used for remote management of computers (Allows computers to be accessed and controlled regularly)
SSH requires a username/password to remotely access a computer, all information is encrypted

Question 3

HTTP

Answer 3

Port Number - 80
Web Servers hold web pages in text form, which can be delivered to clients using HTTP
Application Software reads these text files and renders them as web pages