Impact Analytics Interview Questions, Process, and Tips

Coding exercise related to probability

Q1. Database design for ride hailing service like uber, ola
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Q2. Tech stack needed to build a real time application
Ans. 
Tech stack for real time applications includes WebSocket, Node.js, Redis, and MongoDB.
• Use WebSocket for real-time communication between client and server

• Node.js for server-side logic and handling multiple connections efficiently

• Redis for caching and storing real-time data

• MongoDB for persistent data storage and retrieval
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The test covered questions around stats (mean, median, etc), python, SQL and aptitude questions

Q1. Write a python code for the Fibonacci series.
Q2. Write a SQL code find the mean salary for every department.
Q3. Write a SQL code to find the employee age at the time of joining the company.
Q4. Rewrite the above queries in Python.

Q1. Python questions, write a SQL query to return employee with the number of leaves in each month, Vlookup, Index Match, Rank, Dense Rank
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Q2. Loc and iloc in python
Ans. 
loc and iloc are methods in pandas used for selecting rows and columns by label or integer position.
• loc is used for selecting rows and columns by label

• iloc is used for selecting rows and columns by integer position

• Example: df.loc[0:5, 'column_name']

• Example: df.iloc[0:5, 2]
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Q3. Advantage of Vlookup over-index match
Ans. 
Vlookup is simpler and easier to use, while Index Match is more flexible and efficient.
• Vlookup is easier for beginners to understand and use

• Vlookup is quicker to set up and requires less formula writing

• Index Match is more flexible as it can look up values in any column, not just the first one

• Index Match is more efficient for large datasets as it does not require the entire column to be searched
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Q4. Difference between BRD and FRD
Ans. 
BRD focuses on business requirements while FRD focuses on functional requirements.
• BRD (Business Requirements Document) outlines the business problem that needs to be solved.

• FRD (Functional Requirements Document) details how the system will meet the business requirements.

• BRD is more high-level and focuses on the 'what', while FRD is more detailed and focuses on the 'how'.

• BRD is typically created before FRD in the projec...read more
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Q5. Retail experience and analysis
Ans. 
Retail experience and analysis
• I have over 5 years of experience in retail industry analysis

• Proficient in using data analytics tools to track sales trends and customer behavior

• Implemented strategies based on market research to increase sales and customer satisfaction

• Collaborated with cross-functional teams to optimize inventory management and pricing strategies
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It was of 1 hour. It consist of 2 coding questions and 25 MCQ's

This was related to general problem solving

Q1. Talk about your projects
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Q2. Questions related to resume
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Q1. Basic behavioural questions
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Quant, english, logical reasoning gfg, data interpretation

Q1. Resume related ques and basic HR ques
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Q1. Basic python question like sorting
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