Diffrance between Bagging and Boosting and many more questions
Senior Data Analyst Interview Questions
2,949 senior data analyst interview questions shared by candidates
I was asked about database optimisation.
What project are you most proud of, and how did you contribute to it?
Background, type of companies you've worked in, why do you want to work at Lodgify
What is your biggest strength/ weakness in this role
How can you calculate churn? How does fixed effects work?
1. tell me about a workplace conflict and how did you handle this? 2. Not specific: how would you create a query and what tables/columns would you expect to use
Q1. Describe when you have failed. Q2. Where do you want to see yourself after 5 years
Which BI tools have you used, and what are their good and bad sides? Define OLTP and OLAP. What is the difference? What are their purposes? Name some benefits of data denormalization.
Questions during interview: 1- Say you do on-line ads for two different companies, EasyJet and Mercedes. How would you present your results to the board and prove them you did not waste any money? 2- Another question that involves some economic thinking about why profits go down etc. in the on-line ad business. I recommend you review concepts such as Click-Through Rate, Conversion Rate and the auction mechanisms in on-line marketing etc. 3- After Facebook users pass away, their profile pages remain. So today we have some dead users and some users that are still alive. Will the number of dead people ever equal that of the ones that are alive? When will that happen? How would you calculate it?
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