TCS Data Engineer Interview Questions, Process, and Tips

Q1. What is data engineering
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Data engineering involves designing, building, and maintaining data pipelines to collect, store, and process data for analysis.
• Designing and implementing data pipelines to collect and process data from various sources

• Building and maintaining data infrastructure such as databases and data warehouses

• Optimizing data workflows for efficiency and scalability

• Collaborating with data scientists and analysts to ensure data qual...read more
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Q1. 1)Diffrence between partion and bucketing in hve 2) diffrence between internal and external tables 3) explain hive architecture 4) difference between cache and parsit 5) what is RDD
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1) Partitioning is dividing data into smaller parts based on a column, while bucketing is dividing data into equal-sized files based on a hash function. 2) Internal tables store data in a default location managed by Hive, while external tables store data in a user-defined location. 3) Hive architecture consists of a metastore, driver, compiler, optimizer, and execution engine. 4) Cache stores data in memory for faster ...read more
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Q1. Based on SQL queries
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Joined as a fresher had to take aptitude test 30question for each 1min

2coding with in 30 min

Q1. Sql window functions
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