Demandbase Data Analyst Interview Questions and Answers

It consist of questions related to aptitude, basic computer science, statistics.

Q1. Listen to audio and speak what is said.
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Q1. What is your strength and weakness.
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Q2. What is join and it's types
Ans. 
Join is a SQL operation used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both 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 ...read more
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Basic python questions

Q1. SQL question on joins and subqueries. Capstone project questions
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1 hour round of the apti round

Basic SQL queries, and coding ques

Designing a system for advertising and optimize it

Mid level Questions from Quants , regular aptitude , math questions and 1 business case study

SQL (mid to advanced level ) like window functions , CTEs etc., and Python

Q1. Mid to advanced level questions on technologies used in projects , use cases
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Q2. What is Dense rank? , explain with use cases
Ans. 
Dense rank is a ranking method that assigns consecutive integers to items with the same rank, leaving no gaps between ranks.
• Dense rank is used when you want to assign unique ranks to items without any gaps.

• For example, if three items have ranks 1, 2, and 2, dense rank would assign ranks 1, 2, and 2 respectively.

• It is commonly used in scenarios where ties need to be handled by giving the same rank to tied items.
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Q3. Python web scraping
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Q4. Business case studies
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Q5. Applications of technologies in real word usecases
Ans. 
Technologies are used in various real-world applications such as healthcare, finance, transportation, and marketing.
• Healthcare: Technologies like AI and machine learning are used for diagnosing diseases, predicting patient outcomes, and personalized medicine.

• Finance: Technologies such as blockchain are used for secure transactions and fraud detection.

• Transportation: Technologies like GPS and IoT are used for route opti...read more
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First round was aptitude, communication test and a pseudo code question and all are elimination rounds if you passes all the rounds you will get an interview date....

Q1. Good Knowledge on dbms, sql
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Q2. Python basic questions
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Q1. Very liberal questions about yourself, relocation, etc..
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Basic Scenario based questions

Q1. Speak to speak< basic grammar corrections
Ans. 
The question is about basic grammar corrections.
• Always check for subject-verb agreement.

• Ensure proper use of punctuation marks.

• Review sentence structure for clarity and coherence.
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Q1. Project based question, ML, basic code
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It was nice and helpfull

Logical, reasoning, apttude, communication

Q1. What are your strengths
Ans. 
My strengths include strong analytical skills, attention to detail, and the ability to communicate complex data effectively.
• Strong analytical skills - able to analyze data and draw meaningful insights

• Attention to detail - meticulous in reviewing and verifying data for accuracy

• Effective communication - able to present complex data in a clear and understandable manner
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Q2. What are your weaknesses
Ans. 
One of my weaknesses is that I can be overly critical of my own work.
• I tend to be a perfectionist and can spend too much time on a task to ensure it is flawless.

• I sometimes struggle with delegating tasks to others because I want to make sure they are done correctly.

• I am working on improving my ability to accept constructive criticism and not take it personally.
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