[{"question":"Which command installs a Python package?","options":["python get requests","pip install requests","npm install requests","python add requests"],"correct":1},{"question":"What is the purpose of a virtual environment?","options":["To run Python in the browser","To isolate project dependencies","To make Python run faster","To compile Python to machine code"],"correct":1},{"question":"Which module is part of Python's standard library?","options":["numpy","requests","json","flask"],"correct":2}]