Given the following Selenium Grid setup code snippet, what will happen when you run two tests simultaneously?

Given the following Selenium Grid setup code snippet, what will happen when you run two tests simultaneously?

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

cap = DesiredCapabilities.CHROME.copy()
driver1 = webdriver.Remote(command_executor='http://localhost:4444/wd/hub', desired_capabilities=cap)
driver2 = webdriver.Remote(command_executor='http://localhost:4444/wd/hub', desired_capabilities=cap)

# Test 1 and Test 2 run here