Tried downloading the exercise system from Pega Academy. Click on the token and right click to save link as....it says it is downloading but it just hangs without doing anything. Nothing appears in the download folder. I am using Mac OS X El Capitan. I have tried doing this on Safari, Firefox and Chrome but get the same result on all 3 browsers.
After downloading the exercise system, please go ahead and configure it as per the instructions in the Exercise System Guide.
Then, continue to take the lessons. When you reach the Practicing What You Learned lesson, you'll find instructions specific to an exercise. Generally it involves importing a JAR file, and then logging in to the system to practice what you learned in the the lesson.