Which two keys permit switching between flip and no flip modes when editing a robot position configuration?

The correct choice is based on the functionality of the up arrow and down arrow keys in the context of editing robot position configurations within the FANUC programming environment. In this environment, these keys are used to toggle between different modes, including the flip and no flip modes.

The up arrow key typically moves the selection or configuration upwards in a list, allowing the user to change parameters or settings related to the robot's position. The down arrow key serves a similar purpose, allowing movement down a list, which effectively lets the user switch between the two modes easily. This functionality is integral in ensuring that operators can quickly adjust their configurations without navigating through multiple menus, thereby improving efficiency.

Other options presented do not typically serve the specific function of toggling these modes. The left arrow and right arrow keys are commonly used for horizontal navigation, while the enter and escape keys are generally associated with selection and cancellation actions, respectively. The shift and control keys typically modify other inputs or commands rather than directly toggle modes. Thus, the up and down arrows are the keys designed specifically for this purpose in the FANUC interface.