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Real questions from top companies · hard
In Spark, what is the difference between cores and executors?
Justify the choice of your current tech stack. Why Spark, Hadoop, or cloud platforms?
Lambda, Kinesis, DynamoDB - data streaming and persistence
Limiting Parallel Tasks
List all the technologies you have worked on in your project (e.g., Spark, Hadoop, Hive, Databricks).
Load CSV from HDFS
Load data into Hive table from HDFS or local
Logical Plan workflow when submitting Spark queries?
Get the complete 1,800+ question library with detailed, expert-level answers covering SQL, Spark, System Design, Python, Cloud, and Behavioral topics.