Mohit DaxiniUnderstanding Medallion Architecture in Data Engineering: A Simplified ApproachIn the world of data engineering, where vast amounts of data are collected and processed every second, it’s crucial to have a structure…17h ago17h ago
Mohit DaxiniExpanding Horizons: Unlocking the Power of Data Augmentation for Robust ModelsData augmentation is a technique used to artificially expand the size of a dataset by creating new examples from the existing data. This is…4d ago4d ago
Mohit DaxiniFilling the Gaps: Mastering Data Imputation Techniques for Cleaner DatasetsData imputation refers to the process of handling missing or incomplete data by filling in the gaps with substituted values. This is a…5d ago5d ago
Mohit DaxiniApple interview question — SQL Analyst 1Given a table having source and destination of a flight passenger, write a SQL query to find the distinct routes that have been travelled.Aug 24Aug 24
Mohit DaxiniFlattening Nested JSON Structures with PySpark: LTIMindtree Interview questionIn the world of big data, handling complex and nested data structures like JSON is a common challenge. JSON (JavaScript Object Notation) is…Aug 23Aug 23
Mohit DaxiniWhat is time series data?Lately, when I posted an article on interview question on time-series data, many comments which I received were related to explaination of…Jul 15Jul 15
Mohit DaxiniinTowards DevHow to aggregate time-series data in Spark ?This question is a medium level question frequently asked in Data Enginnering interviews in most product based companies. The question is…Jul 12Jul 12
Mohit DaxiniinTowards DevSystem Design for Data EngineersIn today's data-driven world, designing systems that can efficiently handle massive data volumes is crucial. For data engineers, creating a…Jun 28Jun 28
Mohit DaxiniinDev Genius10 ways to optimize iterative processing in SparkThis question is a medium level question frequently asked in Data Enginnering interviews in most product based companies. The question is…Jun 251Jun 251
Mohit DaxiniSpark Interview Question — 6Recently, I came across a spark interview question on troubleshooting performance bottlenecks efficiently and thought to share the answer…Jun 24Jun 24