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Datenanalyst Interview Questions

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Datenanalyst Interview Questions

In einem Vorstellungsgespräch für eine Position als Datenanalyst stellen Arbeitgeber Fragen, die Ihren technischen Kenntnisstand ermitteln sollen, darunter die Frage, wie vertraut Sie mit Datenanalyse-Software, Datenanalyse-Terminologie und statistischen Methoden sind. Befragende können auch abschätzende Fragen stellen, um mehr über Ihre Problemlösungkompetenz und Ihre kreative Denkweise zu erfahren.

Typische Bewerbungsfragen als Datenanalyst (m/w/d) und wie Sie diese beantworten

Question 1

Frage 1: Mit welcher Datenanalyse-Software haben Sie bereits gearbeitet?

How to answer
So beantworten Sie die Frage: Datenanalysten nutzen für viele ihrer beruflichen Aufgaben Software. Befragende möchten mit dieser Frage Ihren aktuellen Kenntnisstand ermitteln und in Erfahrung bringen, wie viel Schulung Sie evtl. benötigen. Führen Sie alle von Ihnen verwendeten Datenanalyse-Softwareproduke auf und erläutern Sie diese. Geben Sie unbedingt alle spezifischen Software-Schulungen an, die Sie erhalten haben, sowie Beispiele dafür, wie Sie die Software bei der Arbeit eingesetzt haben.
Question 2

Frage 2: Welche statistischen Methoden sind für die Datenanalyse am nützlichsten?

How to answer
So beantworten Sie die Frage: Hier soll Ihr Verständnis der am häufigsten verwendeten statistischen Methoden geprüft werden, wie Simplex-Algorithmus, Imputation, Bayessche Methode und Markov-Prozess. Führen Sie die Datenanalysemethoden auf und besprechen Sie diese. Geben Sie dabei die besonderen Vorteile des jeweiligen Prozesses an. Nennen Sie möglichst Beispiele dafür, wie Sie bestimmte statistische Methoden bei der Arbeit eingesetzt haben.
Question 3

Frage 3: Erläutern Sie bitte, wie Sie abschätzen würden, wie viele Paar Gummistiefel im Mai in Seattle verkauft wurden.

How to answer
So beantworten Sie die Frage: In Vorstellungsgesprächen für eine Position als Datenanalyst werden häufig Schätzungsfragen dieser Art eingesetzt, um Ihr analytisches Denken und Ihre Problemlösungsmethoden zu testen. Geben Sie an, wie Sie das Problem angehen, welche Datensätze Sie benötigen, wie Sie Daten finden und welche Methoden Sie zur Berechnung einer geschätzten Antwort verwenden würden.

49,245 datenanalyst interview questions shared by candidates

1. Introduce yourself 2. You worked for 3.8 years right why did you decide to do masters in DSA? 3. Choose any one of your project and tell me how you defined the problem, What was your approach, How did you Solve it? 3.a) How did you do the map visualization in your project (Coz i mentioned i did it using Tableau)? 3.b) What is topic modeling? If we have some documents how does the algorithm work can you explain? (I used it oin project so she asked) 3.c) Have you ever used shape files for visualization? (I said i havent, but I extracted the longitude n latitude info from tweet json and done the visualization) 4. Do you know Python? I said yes i have been using for a more than 2 years now. 5. What is the difference between Array and a List. 5.a) When do you uyse Array and when do you use lists? 6. Tell me the packages you used in python. 6.a) Tell me the difference between matplotlib and plotly and what is your go to package for visualizations. 6.b) What are your go to tools for visualizations? (R Markdown and JUpyter notebook most of the time. But i recently learned Tableau on my own interest) 7. Do you know SQL well? Where did you use (In work and during my masters, I've even done DBMS course and worked on Azure Data Studio) 8. Can you write a query to display the First name of top 5th salaried person from the employee table. SELECT TOP (1) FIRST_NAME FROM (SELECT TOP (5) FROM Employee ORDER BY Salary DESC) AS Employee ORDER BY Salary ASC; 9. Write a query to Display the first name of the person whose salry is greater than the average salary of all people in the table. 9.a) Difference between WHERE clause and HAVING clause when do you use them. 10. What is the most important skill do you think you have, which you consider you're very good at. (I said, the ability to understand a problem and present it to others in, as simplified manner as possible. My Presentation and visualization skills are my strength.) 11. You are the owner of a restaurant and you're also a Data ANalyst, Your sales data for the first 6 months of the years is in profits but your restaurant is in loss for the last 6 months. What would you do with this data to improve your sales?
avatar

Data Analyst

Interviewed at Tata Consultancy Services (North America)

3.5★
Jun 29, 2021

1. Introduce yourself 2. You worked for 3.8 years right why did you decide to do masters in DSA? 3. Choose any one of your project and tell me how you defined the problem, What was your approach, How did you Solve it? 3.a) How did you do the map visualization in your project (Coz i mentioned i did it using Tableau)? 3.b) What is topic modeling? If we have some documents how does the algorithm work can you explain? (I used it oin project so she asked) 3.c) Have you ever used shape files for visualization? (I said i havent, but I extracted the longitude n latitude info from tweet json and done the visualization) 4. Do you know Python? I said yes i have been using for a more than 2 years now. 5. What is the difference between Array and a List. 5.a) When do you uyse Array and when do you use lists? 6. Tell me the packages you used in python. 6.a) Tell me the difference between matplotlib and plotly and what is your go to package for visualizations. 6.b) What are your go to tools for visualizations? (R Markdown and JUpyter notebook most of the time. But i recently learned Tableau on my own interest) 7. Do you know SQL well? Where did you use (In work and during my masters, I've even done DBMS course and worked on Azure Data Studio) 8. Can you write a query to display the First name of top 5th salaried person from the employee table. SELECT TOP (1) FIRST_NAME FROM (SELECT TOP (5) FROM Employee ORDER BY Salary DESC) AS Employee ORDER BY Salary ASC; 9. Write a query to Display the first name of the person whose salry is greater than the average salary of all people in the table. 9.a) Difference between WHERE clause and HAVING clause when do you use them. 10. What is the most important skill do you think you have, which you consider you're very good at. (I said, the ability to understand a problem and present it to others in, as simplified manner as possible. My Presentation and visualization skills are my strength.) 11. You are the owner of a restaurant and you're also a Data ANalyst, Your sales data for the first 6 months of the years is in profits but your restaurant is in loss for the last 6 months. What would you do with this data to improve your sales?

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