Banking application code verification, bug fixes and performance improvement.
Data Engineer Interview Questions
20,177 data engineer interview questions shared by candidates
Python 1. How to remove duplicates 2. Words frequency in a dictionary 3. Multiple Constraints based dictionary questions SQL 1. Find the time between next station for a train
How to trouble shoot error in their algorithm software.
Explain Spark Context in detail
how do you think the optimization of the algorithm
How would you use Python to flatten a JSON object?
Aws - Boto3 SQL - Case Satement - Mod function - Qualify Row Number - Checksum Unix - Find hidden files within a folder Tons of behavioral questions
1) Imagine you are data modeling Netflix and create the entities and relationships involved using a modeling tool. 2) follow a link to a sql tool which shows 4 tables. Run some provided sql to populate the tables, Create the sql to aggregate the data and provide a result set showing the top row.
Imagine you receive an alert indicating that a group of servers in one pod has gone offline. How would you approach troubleshooting and resolving this issue?
Query a many to many relationship while not violating the grain of a fact table.
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