Conversion Electromechanical Co. LLC Data Science Analyst Interview Questions and Answers

Q1. Advanced Financial Reporting
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Q2. General Costing Knowledge
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Q1. Explain Order of execution in SQL
Ans. 
Order of execution in SQL determines the sequence in which different clauses are processed in a query.
• SQL query is processed in the following order: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.

• FROM clause is processed first to retrieve data from tables.

• WHERE clause filters the data based on specified conditions.

• GROUP BY clause groups the data based on specified columns.

• HAVING clause filters the grouped data.

• SELECT ...read more
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Q2. Sumifs function
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Q3. Boxplots?Histograms?
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Well, I’m currently an account executive at Smith, where I handle our top-performing client. Before that, I worked at an agency where I was on three different major national healthcare brands. And while I really enjoyed the work that I did, I’d love the chance to dig in much deeper with one specific healthcare company, which is why I’m so excited about this opportunity with Metro Health Center

Q1. Basic and in general Basic is good
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Q2. How are you?Walk me through your resume.
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Q3. Walk me through your redume
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Sql test like joins and etc

Q1. Why do you want to join the company
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Q1. What are joins and its types?
Ans. 
Joins are 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 table.

• FULL ...read more
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Q2. What are aggregate functions?
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Aggregate functions are functions in databases that perform a calculation on a set of values and return a single value.
• Aggregate functions are used to perform operations on a group of rows and return a single result.

• Common aggregate functions include SUM, AVG, COUNT, MIN, and MAX.

• For example, SUM function calculates the total of a column, AVG calculates the average, COUNT counts the number of rows, MIN finds the minimu
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Q1. Coding questions in python eda part
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Q1. Where do u see in next 5 years
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30 questions and time was approx. 45 min to 60 min

There were some basic as well as some high level questions

Basics and Fundamentals

Q1. Reason for job switch
Ans. 
Seeking new challenges and opportunities for growth in a different environment.
• Looking for a more challenging role to further develop skills

• Interested in exploring new technologies and methodologies

• Seeking a better work-life balance or company culture

• Opportunity for career advancement or higher salary

• Desire for a change in industry or focus area
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Q2. Work Culture Expectations
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