When working in a layout, if a viewport is activated and unlocked and you accidentally zoom in or out, what happens to your viewport scale?

When using annotative scaling with dimensions and an annotative dimension style, which two variables need to match for the dimensioning to display in a scaled viewport?

You can share tool palettes with other AutoCAD users, provided that the palette source drawing location does not change. What file do you need to share to ensure that another user is using the same tool palette?

A crossing selection selects what objects?

You can dimension objects in AutoCAD from the Annotation panel on the Home tab of the ribbon. Where else can you dimension on the ribbon?

When drawing a group of line segments with the LINE command, which command on the right-click shortcut menu allows you to form a closed boundary and snap back to the start point of the first line segment?

How do you create a circle using diameter?

Why do you create blocks?

What is a shortcut for offset?

How can you end a command?

If an Xref in your drawing gets changed, what should you do?