i
Wipro
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I appeared for an interview in Sep 2024.
Pyspark is a Python library for big data processing using Spark framework.
Pyspark is used for processing large datasets in parallel.
It provides APIs for data manipulation, querying, and analysis.
Example: Using pyspark to read a CSV file and perform data transformations.
Databricks optimisation techniques improve performance and efficiency of data processing on the Databricks platform.
Use cluster sizing and autoscaling to optimize resource allocation based on workload
Leverage Databricks Delta for optimized data storage and processing
Utilize caching and persisting data to reduce computation time
Optimize queries by using appropriate indexing and partitioning strategies
Databricks is a unified data analytics platform that provides a collaborative environment for data engineers.
Databricks is built on top of Apache Spark and provides a workspace for data engineering tasks.
It allows for easy integration with various data sources and tools for data processing.
Databricks provides features like notebooks, clusters, and libraries for efficient data engineering workflows.
I applied via Recruitment Consulltant and was interviewed in Jul 2024. There were 2 interview rounds.
I have successfully led the development of a real-time data processing system, resulting in a 30% increase in efficiency.
Led the development of a real-time data processing system
Achieved a 30% increase in efficiency
Implemented data quality checks to ensure accuracy
I have faced challenges in optimizing data pipelines, handling large volumes of data, and ensuring data quality.
Optimizing data pipelines to improve efficiency and performance
Handling large volumes of data to prevent bottlenecks and ensure scalability
Ensuring data quality by implementing data validation processes and error handling mechanisms
I applied via Referral and was interviewed before Jan 2021. There was 1 interview round.
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
Numerical ability and logical reasoning followed by some coding mcqs
Printing 1 to 100 without for loop
Use recursion to print numbers from 1 to 99
Print 100 outside the recursion
Use a base case to stop recursion at 100
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
Simple aptitude test
I applied via Walk-in and was interviewed before Jul 2021. There was 1 interview round.
I appeared for an interview before Feb 2021.
Time - 60mins
Time- 30mins
I applied via Company Website and was interviewed before Jan 2021. There were 3 interview rounds.
It totally taken by TCS ion
based on 2 interviews
Interview experience
based on 6 reviews
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