(Off the top of my head)
To create that you could make a simple dot with the brush tool, literally just click the mouse button once. It shouldn’t matter what size brush you use.
Then select the ‘dot’ and go to Object -> Transform -> Move
From here input the horizontal or vertical values (or maybe both) for where you would like your next dot to appear. Then click on the ‘Copy’ option.
Then repeatedly duplicate the command you just set up by using the shortcut CMD+D (or Control D for PC I believe). You can hold CMD and keep tapping the letter D or you can hold CMD and then hold D then let go once you have the desired amount of dots.
Now view in outline mode and you should have your desired result
This.
It's also easy to vary this method to draw a dotted linear path too (with path dashes instead of dots for your perforations):
1) Position a guide at the where you want the line to go (make sure guides are unlocked by right-clicking in the work area and making sure 'Lock Guides' is unchecked, relock them when you have finished this step).
2) At the point you want the line to start, draw a line which is the length you want the dashes to be.
3) Duplicate the line in the position that you want the second dash to appear, then make sure the second dash is selected.
4) CMD/CTRL + C to copy it, CMD/CTRL + B to past it in place, CMD/CTRL + D to repeat the relative repositioning. Repeat this sequence of shortcuts until the line is the desired length.
Alternatively, a more laborious option for a curved path (not sure what you would use a curved fold path for, but here it is).
1) With 'Butt Cap' selected in the Stroke dialogue box, draw a dashed path out as desired.
2) Outline the stroke.
3) For each dash on your line, individually delete the two unwanted points and 3 unwanted sides from the path.
4) Depening on how accurate you want to be, this method will mean that your dotted line of individual paths will be offset from your original curved path. To resolve this, you can use Adobe Illustrator's path offsetting options to compensate for this, so you know the line you draw originally will pretty much line up with the dotted path you end up with.