Can I jump from small heights on my bicycle?
Your bike is designed for riding on rough terrain, like forest trails, roots, take an occasional drop. It should not break after a few drops from low heights, if you apply the technique correctly. Of course, it will shorten its life, so if it becomes regular practice, you should switch your bike from entry level MTB to something more appropriate.

You might find stickers on your bike that it is not designed for racing, but just recreation usage. This may put limitations on warranty.