Uber Data Science Intern Interview Questions and Answers for Freshers

I was asked a medium-level SQL question that involved the RANK function.

Q1. Create the pivot table, sort the data in ascending order
Ans. 
Create a pivot table and sort the data in ascending order.
• To create a pivot table, select the data range and go to the 'Insert' tab in Excel.

• Choose 'PivotTable' and select the location for the pivot table.

• Drag the desired fields to the 'Rows' and 'Values' areas.

• To sort the data in ascending order, click on the drop-down arrow next to the field name in the pivot table and select 'Sort A to Z'.
Answered by AI
View 4 more answers
Q2. Use lookup with the product based given data and find the needed data
Ans. 
Using lookup with product-based data to find the needed data.
• Use a lookup function like VLOOKUP or INDEX/MATCH to search for the needed data

• Identify the key or unique identifier to match the data

• Specify the range or table where the data is located

• Retrieve the desired data based on the lookup value
Answered by AI
View 2 more answers

Q1. Output resukt number of rows basis the joins
Ans. 
The output result number of rows depends on the type of join used.
• Inner join returns only the matching rows from both tables

• Left join returns all rows from the left table and matching rows from the right table

• Right join returns all rows from the right table and matching rows from the left table

• Full outer join returns all rows from both tables

• Cross join returns the Cartesian product of both tables
Answered by AI
Add your answer
Q2. Output result number of rows basis the joins
Ans. 
The question asks to output the number of rows based on joins.
• The number of rows in the output depends on the type of join used.

• Inner join only returns rows that have matching values in both tables.

• Left join returns all rows from the left table and matching rows from the right table.

• Right join returns all rows from the right table and matching rows from the left table.

• Full outer join returns all rows from both tables.

• U...read more
Answered by AI
Add your answer

Q1. Basic SQL questions
Add your answer

Q1. Guestimates question: How many women's drive red car in the Bangalore
Ans. 
It is impossible to accurately estimate the number of women driving red cars in Bangalore without specific data.
• There is no specific data available on the number of women driving red cars in Bangalore.

• Estimating the number of women driving red cars in Bangalore would require access to vehicle registration data or a survey of car owners.

• Factors such as car ownership trends among women and the popularity of red cars woul
Answered by AI
View 2 more answers
Q2. How will achieve GMV if your budget is over
Ans. 
Achieve GMV by optimizing marketing channels, improving product offerings, and enhancing user experience.
• Optimize marketing channels to reach a larger audience

• Improve product offerings to increase customer interest and sales

• Enhance user experience to encourage repeat purchases and higher order values
Answered by AI
Add your answer

Questions were on sql , python and java

Duration was 10 minutes