Real questions from top companies
Kafka Basics - architecture, topics, partitions, producers, consumers, Zookeeper
Kafka Partitioning: How would you ensure even load distribution across Kafka partitions in a high-volume system?
Lead and Lag in SQL Using PySpark DataFrame API
List the different types of joins in SQL.
Managed Table vs External Table
Managed vs Unmanaged Tables
Materialized View - explain and use cases
Merge two dictionaries and remove keys with null values.
Motivation for Joining Snowflake?
Nested and Repeated Fields in BigQuery
No Column Names in CSV - how to handle
NoSQL Database - Cassandra fundamentals
Normalization & Slowly Changing Dimensions (SCD) Type 2
Normalization vs Denormalization
Normalization: 1NF, 2NF, 3NF with examples
Normalization: Concepts and its importance
Normalization: Various forms and impact on query performance
Number of Rows in Different Joins
Oozie join condition?
Optimization Techniques Beyond Repartitioning and Caching
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