Freelancer.com Business Intelligence Analyst Interview Questions and Answers

Q1. Delete duplicates, SCD types , datawarehousing concepts
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Gangster Disciples (GD) is a gang, while Graphical Display (GD) refers to a visual representation of data.

Aptitude tests are used to assess a person's ability to perform specific tasks, think critically, and solve problems. They are commonly used in job recruitments, college admissions, and competitive exams.

### **Types of Aptitude Tests**
1. **Numerical Aptitude** – Assesses mathematical skills, including arithmetic, algebra, ratios, percentages, and data interpretation.
2. **Logical Reasoning** – Evaluates pattern recognition, sequences, and logical deductions.
3. **Verbal Ability** – Tests grammar, comprehension, vocabulary, and sentence formation.
4. **Abstract Reasoning** – Measures the ability to identify patterns, trends, and relationships among shapes or figures.
5. **Spatial Reasoning** – Tests the ability to visualize and manipulate objects in space.
6. **Mechanical Reasoning** – Assesses understanding of mechanical and physical concepts, often for technical roles.
7. **Situational Judgment Test (SJT)** – Evaluates decision-making and problem-solving in workplace scenarios.

### **Common Exam Patterns**
- Multiple-choice questions (MCQs)
- Timed sections
- Increasing difficulty level
- Negative marking (in some tests)

### **Preparation Tips**
✔️ **Practice Regularly** – Solve sample questions and previous papers.
✔️ **Time Management** – Work on speed and accuracy.
✔️ **Learn Shortcuts** – Use mental math tricks and reasoning techniques.
✔️ **Improve Reading Skills** – Enhance vocabulary and comprehension for verbal sections.
✔️ **Use Online Mock Tests** – Simulate real test conditions.

Would you like sample questions or specific test details for a job or exam?

Q1. Case studies, puzzle , Sql, guesstimate, projects
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Q1. Puzzles, probability, work experience
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Q1. Python, pyspark
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Q1. Behavioral round
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Q1. Question about Googlyness
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Q2. Question about Google Lens, a RCA question
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Q1. Tell me about yourself
Ans. 
I am a Senior Data Analyst with 5+ years of experience in analyzing complex data sets and providing actionable insights.
• 5+ years of experience in data analysis

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

• Strong problem-solving skills and ability to communicate findings to non-technical stakeholders
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Q2. Asked about recent project
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Q3. Types of join in sql
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Types of join in SQL include inner join, outer join, left join, right join, and full join.
• Inner join: Returns rows when there is a match in both tables

• Outer join: Returns all rows when there is a match in one of the tables

• Left join: Returns all rows from the left table and the matched rows from the right table

• Right join: Returns all rows from the right table and the matched rows from the left table

• Full join: Returns ro
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Q4. Case when statement questions
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Business Related case study, signed NDA

Q1. Count number of Parameters in BERT
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Q2. 3 sum array problem
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They gave a span of 3 days to build an AI-powered webapp

Q1. How would you go about learning a new skill
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Q2. Experience in cloud technologies
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I have experience working with cloud technologies such as AWS, Azure, and Google Cloud Platform.
• Experience in setting up and managing virtual machines, storage, and networking in cloud environments

• Knowledge of cloud services like EC2, S3, RDS, and Lambda

• Experience with cloud-based data processing and analytics tools like AWS Glue and Google BigQuery
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Q1. Tell me about yourself
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Q2. Project details and challenges faced in the project
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Developed a predictive model for customer churn in a telecom company
• Collected and cleaned customer data from various sources

• Performed exploratory data analysis to identify key factors influencing churn

• Built and fine-tuned machine learning models to predict customer churn

• Challenges included imbalanced data, feature engineering, and model interpretability
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Q1. Complex Sql Questions and problems
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Q2. Case study about segmentation and dashboarding
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