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Interview questions
What is the difference between SparkSession and SparkContext in Spark?
Discuss the data size challenges in your previous projects. How did you optimize storage and processing?
What were the biggest infrastructure-level challenges you faced, and how did you resolve them?
Why do you want to join American Express?
What are your strengths, and how do they align with the Data Engineer role?
Create a Python program to demonstrate the use of set operations (union, intersection).
Describe Spark's memory management model. How do you handle heap memory overhead issues?
Explain the difference between mutable and immutable objects in Python.
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