Answer: A. Usability testing
Explanation:
Usability testing would be the correct answer because if the user interface isn't "frendly" then people won't be able to use it properly. Or if you are refering to the word friendly as looking safe, then even more so would be usability testing. Because if people don't like the fonts and styles of the user interface, they might not use it at all.
Console Port Method
Connecting a computer to a Cisco device through the console port requires a special console cable.
It looks like you need to get both numbers from the input. Try doing something like this:
print(int(input()) + int(input()))
Answer:
Option A is the correct answer.
Explanation: