Question

what are navigation buttons?

Answer 1

The answer to this question is
A navigation bar is a section of a graphical user interface intended to aid visitors in acessing information .

Answer 2

A navigation bar (or navigation system) is a section of a graphical user interface intended to aid visitors in accessing information. Navigation bars are implemented in file browsers, web browsers and as a design element of some web sites.

Whereas, IBM says You can use the navigation buttons to move through menus.

There are four navigational buttons that you can use to move throughout a menu: up, down, right, and left.

Each button corresponds to the direction that you can move in a menu. For example, to move right in a menu, press the navigation button that is located on the right side. If you want to move down in a menu, press the navigation button that is located on the bottom.

You can use the navigation buttons to move through menus.