Merck Data Analyst Interview Questions and Answers

Q1. What is lamda function
Ans. 
Lambda function is an anonymous function in programming that can have multiple arguments but can only have one expression.
• Lambda functions are used for creating small, one-time use functions without the need to define a formal function.

• They are often used in functional programming languages like Python.

• Lambda functions can take any number of arguments, but can only have one expression.

• Example: lambda x: x*2 defines a l
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Q2. Difference between list and tuple
Ans. 
List is mutable, tuple is immutable in Python.
• List can be modified after creation, tuple cannot.

• List uses square brackets [], tuple uses parentheses ().

• List is used for collections of items that may change, tuple for fixed collections.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)
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Q1. Explain your previous work experience
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Q2. Explain with example how your work related to real life example
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Q1. Questions related to Data analytics and SharePoint for my role.
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Q2. Previous projects and their solutions.
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Q3. Tool used in previous company. (SharePoint, Power BI, Nintex, InfoPath, Power Apps, Workflows)
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Q1. Related to professional life and assurance to work.
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Q1. Salary details and candidature check.
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Q1. What time intelligence functions can be used for ytd and qtd analysis
Ans. 
Time intelligence functions like YTD (Year-to-Date) and QTD (Quarter-to-Date) can be used for YTD and QTD analysis in data analytics.
• YTD analysis can be done using functions like YTD() or TOTALYTD() to calculate values from the beginning of the year up to the selected date.

• QTD analysis can be done using functions like QTD() or TOTALQTD() to calculate values from the beginning of the quarter up to the selected date.

• Thes...read more
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Q2. Difference between import and direct query
Ans. 
Import brings data into Power BI for further analysis, while direct query connects to data source in real-time.
• Import: Data is loaded into Power BI for analysis, improving performance but requiring periodic refreshes.

• Direct Query: Connects to data source in real-time, allowing for up-to-date information but potentially slower performance.

• Import is suitable for smaller datasets, while direct query is better for large da
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Q1. Basic introduction with HR on call
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Q1. Technical questions with respect to SQL and SAS, complexity was easy to medium.
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Q1. Manager asked during the final round regarding the job, your motivation to join the company, and about my role in previous organization.
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Q1. Why did you choose to work at Pfizer?
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Q1. Tell me about your project
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Time management and organization skills

Q1. Tell me about your experiences
Ans. 
I have experience working as a data analyst in various industries, utilizing statistical analysis and data visualization tools.
• Worked as a data analyst at XYZ Company, analyzing sales data to identify trends and make recommendations for improvement

• Utilized SQL and Python to extract and manipulate data from databases

• Created interactive dashboards using Tableau to present findings to stakeholders

• Performed A/B testing to ...read more
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Q2. What is the one thing that eli lilly has as a pharmaceutical brand
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Q1. Coding questions on python
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Q2. Version control system GitHub questions
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Q3. Web scraping questions
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Q1. Behavioral questions on senarioy
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