What is the difference between SparkSession and SparkContext in Spark?
Spark/Big Datahard
3
Architecturally, how would you justify or challenge Hadoop vs. a cloud-native data lake (S3 + EMR/Databricks) for a greenfield enterprise data platform? Discuss scalability ceilings, cost model trade-offs, and operational complexity.
Spark/Big Datahard
4
Why is SparkSession used in Spark 2.0 and later versions?
Spark/Big Datahard
5
What is the difference between a generator and a list in Python?
Python/Codinghard
6
Explain your recent projects in detail.
General/Otherhard
7
How do you initiate a DAG in Airflow?
Spark/Big Datahard
8
How to handle null value in a single column in PySpark?
Spark/Big Datahard
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