Your question is Spark, Python, SQL Big Data. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain Spark, Python, SQL, and big data concepts you have worked with.
Discuss the projects, pipelines, or data-processing tasks where you applied these technologies. Explain Spark execution and optimization, Python usage in data engineering, SQL transformations and data modeling, and the big data challenges you addressed. Include relevant trade-offs, data quality practices, and examples of troubleshooting or performance improvement.