ZS Consultant Interview Questions, Process, and Tips

Data interpretation and business problem solving

Q1. People management questions and detailed discussion of one of the project done recently
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Q1. This round was with the principal mostly team management and crisis handling skills based question
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Q1. Python questions
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Q2. Join pandas data frame
Ans. 
Join pandas data frame
• Use the merge() function in pandas to join two data frames based on a common column

• Specify the 'how' parameter to determine the type of join (inner, outer, left, right)

• Example: df_merged = pd.merge(df1, df2, on='common_column', how='inner')
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Q3. Filter pandas dataframe
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Q4. Create a function to find repeated character in string
Ans. 
Function to find repeated characters in a string
• Create a function that takes a string as input

• Iterate through the string and store each character in a hashmap

• If a character is already in the hashmap, it is a repeated character
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Q5. Interaction of a set
Ans. 
Interaction of a set refers to the way elements in one set relate to elements in another set.
• Intersection of sets: elements that are common to both sets

• Union of sets: all elements from both sets combined

• Complement of sets: elements in one set but not the other

• Cartesian product of sets: all possible ordered pairs of elements from both sets
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On the call case study - data interpretation etc

To read through a long case (20 pages) with data and answer questions via a presentation

Ppt case study that we got to solve in 30 minutes in face to face interview

Q1. Guesstimate question
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