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Tech Mahindra
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Basic aptitude and reasoning online test
I applied via Naukri.com and was interviewed in Sep 2023. There were 3 interview rounds.
Delete removes rows from a table while truncate removes all rows from a table
Delete is a DML command while truncate is a DDL command
Delete can be rolled back while truncate cannot be rolled back
Delete fires triggers on each row deletion while truncate does not fire triggers
I applied via Naukri.com and was interviewed in May 2023. There were 4 interview rounds.
Ratio& proportion, number series, puzzle, encoder &decoder
What people are saying about Tech Mahindra
Was dought full and Landy
Cloud is a network of remote servers hosted on the internet to store, manage, and process data.
Cloud computing allows users to access data and applications from any device with an internet connection.
It provides scalability, flexibility, and cost-effectiveness for businesses.
Examples of cloud services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.
Tech Mahindra interview questions for designations
Rank and Dense Rank are transformations in PySpark used to assign ranks to rows based on a specific column.
Rank assigns unique ranks to each row based on the order of values in a specific column.
Dense Rank assigns ranks to each row based on the order of values in a specific column, but with no gaps between ranks.
Both transformations can be used with the 'over' function to specify the column to order by.
Example: df.sele...
Get interview-ready with Top Tech Mahindra Interview Questions
Some of the top questions asked at the Tech Mahindra Data Engineer interview -
The duration of Tech Mahindra Data Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.
based on 14 interviews
3 Interview rounds
based on 35 reviews
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Hyderabad / Secunderabad,
Bangalore / Bengaluru
5-8 Yrs
Not Disclosed
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