The Smart Cube Data Analyst Interview Questions and Answers

Basic English, Quants and Statistics

Easy, relevant to pandemic

Q1. Python, Tableau, SQL, Stats, ML, all questions easy to medium level
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Q1. Behavioural Questions
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Q2. Statistics Case Study
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General Quant, DA questions like ratio, numbers etc

Q1. What is the difference between extend and append in Python?
Ans. 
Extend adds elements of an iterable to a list, while append adds a single element to the end of a list.
• Extend can add multiple elements from an iterable (list, tuple, string) to the end of a list.

• Append adds a single element to the end of a list.

• Extend modifies the original list, while append does not.

• Example: list1 = [1, 2, 3], list2 = [4, 5], list1.extend(list2) will result in list1 = [1, 2, 3, 4, 5], list1.append(6)
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Q2. How can you join 2 dataframes one after the other in Python?
Ans. 
You can join 2 dataframes one after the other in Python using the concat() function from the pandas library.
• Use pd.concat() function from the pandas library to join two dataframes one after the other.

• Specify the dataframes to be concatenated as arguments to the concat() function.

• Make sure the columns of both dataframes match or use the ignore_index parameter to reset the index after concatenation.
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Gst in india with + and -

Q1. Asked about case study
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Q1. Asked some puzzles
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Grammar and reasoning questions

Just a minute session. To check English fluency.

Q1. Resume based questions. Revolved around statistics, linear and logistics regression
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