Real questions from top companies · medium
Match countries in a pairwise format
Reverse operation for splitting values back to original format
Shell commands for renaming a file?
Solve Minimum Remove to Make Valid Parentheses.
Steps to Verify Source and Target Data Match After Load
WAQ for Desired Output (Node Parent Relationship)
What are the benefits of the COPY command's MANIFEST option?
What are the best practices for logging and monitoring bad data?
What are the limitations of Assert Transformations in complex data flows?
What steps do you take to troubleshoot a slow-running Spark job?
What strategies do you use to handle network bottlenecks?
What would you do if a job misses its SLA? How would you handle such situations?
What would you do if the files are stored in multiple folders with varying retention policies?
Create a Python program to demonstrate the use of set operations (union, intersection).
Describe Spark's memory management model. How do you handle heap memory overhead issues?
Differentiate SORT BY, ORDER BY, DISTRIBUTE BY, and CLUSTER BY
Extended the solution to determine the nth largest element in an array.
GeoPandas - definition and features
Grouping and aggregation functions?
How many cities does each department operate in? List the top 3 departments in terms of the most number of cities. In case of a tie, order by dept_id.
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