When using the pencil tool, what happens when the Alt(Opt) key is held down?

Way to decrease the area of a marquee-selected region while constraining that region to its original proportions?

Which is not available in the Preferences window?

Which one does not require you to specify a sample area when it automatically samples from neighboring pixels?

Under which menu would you make a high pass adjustment?

Keyboard shortcut to access the Fill panel which includes Content Aware fill?

When you export a 3D Layer from Photoshop CS5, which format is not an option?

Shortcut to close an open file in Photoshop and open Bridge?

Option to monitor and modify your work, and can be grouped, stacked, docked or closed?

Shortcut key for opening the brush option windows?

F6 is used to open the...