Which could be a hornet, or any number of other things. So, begs the question, "What's the difference between a bee and a wasp?"
For starters, Bees tend to be more social, have hairy bodies and subsist on a diet of pollen and nectar. Wasps or parasitic, predators, or scavengers. They feed off of other insects and have considerably less body hair. For further reading and a better understanding, try this out!
Hornets are the largest eusocial wasps. Hornets and wasps, unlike a honeybee, do not lose their stingers once they have stung you. Meaning they can sting multiple times and continuously inject anyone or thing with their venom.
If you are experiencing hornets and any other type of wasp, please call on your local Atlanta pest control to do the job that needs doing.