Exam 1D0-621 topic 1 question 12 discussion

A fluid grid uses percentage-based dimensions

C is correct. percentage based scaling is fluid by definition.

A fluid grid uses percentage-based dimensions, which makes sure that even after changing the size of the screen, the proportion of elements stay the same. However, in a responsive grid system, the layout of an interface differs slightly or completely depending on the screen size it’s viewed on, and the elements stretch or shrink accordingly

Responsive Website Design (RWD): Websites that are built with responsive design use media queries to target breakpoints that scale images, wrap text and adjust layout so that the website can ‘shrink to fit’ any size of screen. Adaptive Website Design (AWD): Websites that are built with adaptive design use CSS media queries to identify specific device sizes (e.g., iPhone, iPad, Android, etc.) and deliver a version of the website optimized for that screen. One of the problems with an adaptive layout is that you need to update your code whenever a new device is released, which isn’t ideal. Fluid Website Design: Websites that are built with fluid design use percentages for widths.

I picked A on my exam and got a 50% score in color\typography\wireframing with PSI. The Ucertify book says, "A fluid grid uses percentage-based dimensions, which makes sure that even after changing the size of the screen, the proportion of elements stay the same."