Real questions from top companies
Can you explain the concept of incremental loading in Sqoop and how to use it for job processing?
Can you explain the concept of mappers in Spark, and how are they used in data transformations?
Can you give a use case where Delta Live Tables would be ideal?
Can you share a time when you had to shift focus due to urgent tasks?
Challenges with Spark Jobs and Resolutions
Cluster Resource Allocation in Spark
Code a simple PySpark job to read a JSON file, filter records, and write output in Parquet format.
Compare HDFS and cloud-based storage systems in terms of scalability and performance.
Compare Hadoop and Spark. Which one would you choose for a real-time application, and why?
Compare Kafka Streams and Spark Structured Streaming for real-time processing
Compare Kafka and RabbitMQ for real-time message processing in a streaming platform.
Compare ORC and Parquet
Compare Spark SQL vs. Hive Performance.
Compare Spark and MapReduce for iterative workloads
Compare Spark's lineage recovery with Hadoop's block replication mechanism.
Concatenate Columns in PySpark
Conceptualize and design a real-time streaming data pipeline end-to-end.
Controlling mappers in MapReduce
Create a DataFrame with default column types
Daily tasks of a Data Engineer?
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