ClearTrail Technologies Lead Interview Questions and Answers

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Q1. Sum and sumx in power bi
Ans. 
Sum and SumX are DAX functions used in Power BI to calculate the sum of values in a column or table.
• Sum calculates the sum of values in a column or table.

• SumX calculates the sum of an expression evaluated for each row in a table.

• Both functions can be used in measures and calculated columns.

• Example: Sum(Sales[Revenue]) calculates the total revenue for the Sales table.

• Example: SumX(Orders, [Quantity]*[Price]) calculates ...read more
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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A technical test for whatever technical round you are applying for. Will be conceptual test rather than hard/coded test

Q1. For almost 1.5 hrs where technical questions being asked. level is easy to medium but mainly they focus on how fast are you while you stuck in a problem and your concepts
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Q2. How can you derive (%share) in power bi
Ans. 
To derive % share in Power BI, use the 'Group By' function and create a measure using the 'Divide' function.
• Use the 'Group By' function to group the data by the desired category

• Create a measure using the 'Divide' function to calculate the percentage share

• Add the measure to a visual to display the % share

• Example: = DIVIDE(SUM(Sales[Revenue]), CALCULATE(SUM(Sales[Revenue]), ALL(Sales)))
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Q1. This was with the Project Manager to see how well you can provide solutions and interact with client.
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Q1. Salary discussion and all
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Test was very simple having 4 sql questions and 4 python questions. Total time given was 90 minutes.

Pyrhon questions was one liner code.
Sql questions was related to join, group by, where and order functions

Q1. This round lasted for 1 hour questions was related to work experience. Explain properly what all algorithms you have used and what all projects you have worked on. In last 10 minutes interviewers shown so...read more
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Q1. This round was related to domain knowledge lasted for 15 minutes. Questions testing business sense.
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Q1. Basic hr questions like why analytics?, any mistake you have done in past?, Any achievement?, Why fractal?
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Q1. I was provided with a Marketing Mix Model problem statement and I have to provide the complete solution in excel and powerpoint presentation. In first round, The Question were all around my previous projec...read more
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Q2. What is adstock, decay, Due tos Contributions? How do you evaluate the model? What is seasonality and the formula for seasonality? Do seasonality have any contribution?
Ans. 
Explanation of adstock, decay, Due tos Contributions, seasonality and its formula.
• Adstock is the measure of the lasting impact of advertising on consumer behavior.

• Decay refers to the reduction in the effectiveness of advertising over time.

• Due tos Contributions is the attribution of sales to different marketing channels.

• Seasonality is the pattern of sales or other metrics that repeat over a fixed period of time.

• The form...read more
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Q1. Second round was improvement on the model provided by me as the solution for MMM question. Technical questions were more on reasoning for the variables selected and understanding of the concepts of MMM. L...read more
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Q1. Salary Discussion and stuff related to that
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Q1. Python plus SQL , machine learning,mmm
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Case study on different aspects of analytics

Medium to difficult level

Q1. -----------SQL BASED
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Q2. ------EXPERIENCE BASED
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Q1. Culture fit check
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Q2. Behavioral questions
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Aptitude test are basically asked from reasonable and patterns type questions.

Tooics are given from businesses and case study