Dun & Bradstreet Data Scientist Intern Interview Questions and Answers

3 SQL questions were given

Q1. It was based upon my work experience and technical questions from SQL
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Q1. Salary discussion
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Q1. Questions from SQL,UNIX,PYTHON,AWS
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Q1. Current Project
Ans. 
Currently working on analyzing customer data for a retail company.
• Analyzing customer purchase history

• Identifying trends and patterns in customer behavior

• Segmenting customers based on demographics and purchase preferences
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Q1. Expected Salary,Process, Offer letter
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Improve your skills

Basic SQL theory questions were asked

Sql joins and PL/ SQL

Q1. Personality Check
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Q2. Resume overview
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Q3. Our strength were asked
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Q4. Our weaknesses were asked
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Q1. Tell me about yourself
Ans. 
I am a data analyst with a strong background in statistics and programming.
• Experienced in analyzing large datasets and extracting meaningful insights

• Proficient in statistical analysis and data visualization tools such as Python, R, and Tableau

• Skilled in SQL for data querying and manipulation

• Strong problem-solving and critical thinking abilities

• Effective communication skills for presenting findings to stakeholders
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Q2. Projects you have done
Ans. 
Developed a predictive model to forecast customer churn for a telecommunications company.
• Used machine learning algorithms to analyze customer data

• Performed feature engineering to identify key predictors of churn

• Built and trained a model using historical data

• Evaluated model performance and provided actionable insights to reduce churn
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Q1. What are your strengths and weaknesses?
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Q1. Tell me about yourself
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Q2. Why do you want to intern with us
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