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I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.
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I applied via Approached by Company and was interviewed in May 2024. There were 2 interview rounds.
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
Supervised learning methods, unsupervised learning methods
Quantzig interview questions for popular designations
Use data modeling techniques, optimize data sources, and leverage Power BI features like aggregations and incremental refresh.
Utilize data modeling techniques like creating relationships, hierarchies, and calculated columns to optimize data.
Optimize data sources by using query folding, reducing unnecessary columns, and filtering data before loading into Power BI.
Leverage Power BI features like aggregations to pre-calcu...
Many to many relationships can be handled using bridge tables or DAX functions in Power BI.
Create a bridge table to connect the two tables with a many to many relationship
Use DAX functions like CROSSFILTER or USERELATIONSHIP to handle many to many relationships
Consider using bidirectional filtering to handle many to many relationships
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Databricks is a unified data analytics platform that includes components like Databricks Workspace, Databricks Runtime, and Databricks Delta.
Databricks Workspace: Collaborative environment for data science and engineering teams.
Databricks Runtime: Optimized Apache Spark cluster for data processing.
Databricks Delta: Unified data management system for data lakes.
To read a JSON file, use a programming language's built-in functions or libraries to parse the file and extract the data.
Use a programming language like Python, Java, or JavaScript to read the JSON file.
Import libraries like json in Python or json-simple in Java to parse the JSON data.
Use functions like json.load() in Python to load the JSON file and convert it into a dictionary or object.
Access the data in the JSON fi...
To find the second highest salary in SQL, use the MAX function with a subquery or the LIMIT clause.
Use the MAX function with a subquery to find the highest salary first, then use a WHERE clause to exclude it and find the second highest salary.
Alternatively, use the LIMIT clause to select the second highest salary directly.
Make sure to handle cases where there may be ties for the highest salary.
Spark cluster configuration involves setting up memory, cores, and other parameters for optimal performance.
Specify the number of executors and executor memory
Set the number of cores per executor
Adjust the driver memory based on the application requirements
Configure shuffle partitions for efficient data processing
Enable dynamic allocation for better resource utilization
posted on 6 Jan 2024
I applied via Campus Placement and was interviewed before Jan 2023. There were 4 interview rounds.
Aptitude test has 70 questions to be done in 75 minutes. It's moderately tough but not very tough with right amount of preparation
I was from non-cs background so coding round was not mandatory but for cs people it was mandatory to clear it. It has SQL and python and they were easy to moderate. I am a fresher (imagineer) so we had to go this interview process
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