Zifo RnD Solutions Associate Data Analyst Interview Questions and Answers

Q1. What has motivated you to pursue this opportunity?
Ans. 
I am motivated to pursue this opportunity because of my passion for data analysis and the potential to make a meaningful impact.
• Passion for data analysis

• Desire to make a meaningful impact

• Opportunity to utilize skills and knowledge

• Interest in the company/industry

• Potential for career growth and development
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Questions related to quantitative aptitude , Logical reasoning , Data Interpretation and English Comprehension . The level of the questions asked will be moderate anyone can easily crack the interview test . But try to be good in any two of the above mentioned topic so that you can clear it easily,

Q1. Advance level sql and excel question will be asked first but they are only asked to check your knowledge even if you answer them correctly it won't guarantee you of getting placed . The main part of the in...read more
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Q2. SQL : - Question related to advance level sql like windows function.
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Q3. Excel :- Difference between vlookup and Index(Match)
Ans. 
VLOOKUP searches for a value in the first column of a table and returns a corresponding value in the same row. INDEX/MATCH uses two functions to look up a value based on its position in a table.
• VLOOKUP only searches for values in the first column of a table, while INDEX/MATCH can search for values in any column.

• INDEX/MATCH is more flexible and efficient for large datasets.

• VLOOKUP is easier to use for simple lookups wit...read more
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Easy Aptitude to start with

Python & SQL programming questions

Q1. Python question
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Q2. SQL query question
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The test was simple basic aptitude

Q1. Desribe your project
Ans. 
Developed a predictive model to forecast customer churn for a telecom company
• Used machine learning algorithms such as logistic regression and random forest

• Performed data preprocessing and feature engineering to improve model accuracy

• Evaluated model performance using metrics like accuracy, precision, and recall
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Q2. Skills and related questions
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Maths, logical reasoning, 1.5 hrs

Q1. About sql joins, python sets, lists, etc
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Q2. Queries, union etc
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Q3. Project related questions
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Piraamal finance jnlnm knkn

Q1. What is sql? and where to use
Ans. 
SQL is a programming language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• Used to retrieve, update, and manage data in relational databases

• Commonly used in data analysis, data manipulation, and data reporting

• Examples: SELECT * FROM table_name, INSERT INTO table_name VALUES (value1, value2)
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Q2. Power bi description and its imp
Ans. 
Power BI is a business analytics tool by Microsoft that provides interactive visualizations and business intelligence capabilities.
• Power BI allows users to connect to a wide variety of data sources and create interactive reports and dashboards.

• Users can easily share their insights with others and collaborate in real-time.

• It offers features like data modeling, data preparation, and data visualization to help organizatio...read more
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Quantity, reasonning, English question and have coding