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iOS Build a Self-Destructing Message iPhone App Using Parse.com as a Backend and Adding Users What is an API? What Does it Mean to Use One?

Quiz question 5 of 5 Fill in the blank below.

A well-designed system is programmed such that there are clearly defined___________ between components that let each component look and act like a black box for the other parts of the system

can you help me ,I cannot guess .

2 Answers

Stone Preston
Stone Preston
42,016 Points

The previous video mentions at 1:30 that:

"A well-designed system is programmed such that there are clearly defined interfaces 1:34 between components that let each components look and act 1:38 like a black box with the other parts of the system. "

"Interfaces" is correct! However, teamtreehouse system accept "interface" instead of "interfaces"

Use interface