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I applied via Approached by Company and was interviewed in Oct 2021. There were 4 interview rounds.
Pseudo code test And syntax check..
1. Provided a number from one side of a dice, output the opposite number..
Questions like this will be asked...
Advanced concepts of Java like Future, Object etc
Multiple problems were briefed and I was asked how I would approach it...
1. Like to update HIVE with incremental data
2. How to update data on HIVE eventhough it doesn't support update in syntax
Create a function to generate a transaction bin column based on transaction amounts.
Create bins based on transaction amounts (e.g. $0-$100, $101-$200, etc.)
Use pandas cut() function in Python to create bins
Assign bin labels to the transactions based on the bin ranges
I applied via Referral and was interviewed in Oct 2024. There were 3 interview rounds.
Sql, python, statistical questions
Daily work involves analyzing data, creating reports, and communicating findings to stakeholders.
Reviewing and cleaning data sets
Creating visualizations and dashboards
Conducting statistical analysis
Communicating insights to non-technical stakeholders
Some of the most commonly used tools for data analysis include Excel, Python, R, Tableau, and SQL.
Excel is widely used for data manipulation and analysis.
Python and R are popular programming languages for data analysis and machine learning.
Tableau is a powerful data visualization tool.
SQL is essential for querying databases and extracting data.
4 sql tasks on 3 tables. Joins, subqueries
I applied via Instahyre and was interviewed in Aug 2024. There was 1 interview round.
It is difficult to accurately estimate the number of cricket bats sold in a year without specific data.
The number of cricket bats sold in a year can vary based on factors such as seasonality, popularity of cricket, and market trends.
One approach to estimate could be to consider the total population of cricket-playing countries and the average number of bats owned by players.
Another approach could be to look at the sale...
To delete duplicate values, use SQL queries with DISTINCT keyword or programming languages like Python with sets.
In SQL, use SELECT DISTINCT to retrieve unique values
In Python, convert list to set to automatically remove duplicates
Use pandas library in Python to drop duplicates in a DataFrame
My current work involves analyzing transaction data to identify patterns and trends, which can help PayU optimize their payment processing services.
Analyzing transaction data to identify fraudulent activities and improve security measures for PayU
Developing predictive models to forecast transaction volumes and optimize payment processing times
Utilizing machine learning algorithms to personalize user experiences and inc...
Code signal , SQL python questions
Take home coding assignment - 10 days analysis and recommendations
based on 1 review
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